WO2021251421A1 - Mouthpiece-type removable corrective device - Google Patents

Mouthpiece-type removable corrective device Download PDF

Info

Publication number
WO2021251421A1
WO2021251421A1 PCT/JP2021/021871 JP2021021871W WO2021251421A1 WO 2021251421 A1 WO2021251421 A1 WO 2021251421A1 JP 2021021871 W JP2021021871 W JP 2021021871W WO 2021251421 A1 WO2021251421 A1 WO 2021251421A1
Authority
WO
WIPO (PCT)
Prior art keywords
mouthpiece
tooth
dentition
occlusal
movement
Prior art date
Application number
PCT/JP2021/021871
Other languages
French (fr)
Japanese (ja)
Inventor
漢俊 金
Original Assignee
漢俊 金
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 漢俊 金 filed Critical 漢俊 金
Priority to JP2022530600A priority Critical patent/JPWO2021251421A1/ja
Publication of WO2021251421A1 publication Critical patent/WO2021251421A1/en

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/08Mouthpiece-type retainers or positioners, e.g. for both the lower and upper arch

Definitions

  • the present invention relates to a mouthpiece type removable orthodontic device for moving teeth in the field of orthodontic dentistry.
  • a bracket is attached to the surface of the tooth and the bracket is used.
  • the mainstream is a multi-bracket treatment method that aims to move teeth by ligating and attaching an elastic wire and sliding on a strong wire.
  • the patient needs to spend a treatment period of 2 to 3 years with a fixed orthodontic device such as a bracket or a wire attached in the oral cavity. Therefore, food residue tends to accumulate around the device attached to them, and there is a risk of suffering from tooth decay and gingival inflammation, the attachment can be seen when laughing or talking, and inconvenience and discomfort during eating and talking.
  • Such issues are a heavy burden on the patient in starting and advancing the treatment.
  • a mouthpiece-type removable orthodontic appliance made with a tooth movement prediction model using an elastic polymer material such as a silicone material called ToothPositioner (or DynamicPositioner) for a long time.
  • This orthodontic appliance is used for minor tooth movements, fine finishing after treatment with a multi-bracket orthodontic appliance, and treatment of relapse cases after treatment. It develops corrective power.
  • it is difficult to correct the shape of a silicon material device once created by cutting or the like. Therefore, it is necessary to recreate it every time adjustments such as enhancement of correction force and correction of movement direction are required.
  • the orthodontic force is too strong or too weak, and even if it is repeatedly remade, the effect is uncertain and it is manufactured. Due to its high cost, it is not used much now.
  • this orthodontic device is a mass device that is attached to both the upper and lower jaws, the outer shape becomes large, and it is difficult to obtain the patient's cooperation due to discomfort when wearing it, difficulty in breathing, and saliva dripping. ..
  • a plurality of mouthpieces (70 to 80 as an example) in which the teeth are moved little by little are created by CAD / CAM, and the teeth are replaced in order to move the teeth.
  • a mouthpiece-type orthodontic treatment method is being put into practical use.
  • the conventional mouthpiece type removable orthodontic appliance can solve the problems pointed out in the multi-bracket, it applies the necessary orthodontic force firmly and efficiently and accurately moves the teeth to enhance the therapeutic effect. There is a lot of room for improvement.
  • the conventional removable orthodontic appliance including the mouthpiece type orthodontic appliance
  • a force that antagonizes the orthodontic force is applied to the teeth that support the orthodontic appliance, so that it is not possible to apply an orthodontic force that exceeds the support of the teeth that hold the orthodontic appliance.
  • the device will come off and cannot be worn in the oral cavity for use. Therefore, in the conventional removable orthodontic appliance, there is a limit to the amount of tooth movement that can be adjusted at one time. Therefore, the treatment period tends to be prolonged because the teeth are moved little by little.
  • the conventional mouthpiece type orthodontic appliance is thin and made of a uniform material, distortion and distortion occur at the center (the part that covers the occlusal surface of the tooth) and the end (the edge that covers the cervical part) of the device.
  • the amount of deformation is different, and the elastic force, that is, the applied straightening force is different.
  • it is difficult to continuously apply sufficient corrective force to the edge portion because it deforms as it is repeatedly attached and detached.
  • the conventional mouthpiece type orthodontic device covers the entire occlusal surface of the tooth, the position where the upper and lower mouthpiece type orthodontic devices come into contact, or the facing tooth comes into contact with either the upper or lower mouthpiece type orthodontic device. Since the position is not considered as a physiologically appropriate position, a biased occlusal force due to the non-physiological positional relationship of the upper and lower dentition may be applied to the device. Therefore, it has been pointed out that there is a risk of undesired tooth movement due to distortion generated in the entire device and deviation of the position of the lower jaw.
  • the main object of the present invention is to create a new mouthpiece-type removable orthodontic appliance that can apply orthodontic force only to the tooth to be moved.
  • the present invention is a mouthpiece type orthodontic device based on a predicted tooth row before and after movement created from digital three-dimensional information of the patient's tooth row morphology, and has a crown shape suitable for a tooth at a position before and after movement of the tooth to be moved.
  • a movement space for moving the tooth along the movement line connecting the crown positions before and after the movement is formed in the device and abuts on the tooth surface on the movement start point side of the movement front crown.
  • the removable mouthpiece type orthodontic device is provided with a tooth surface pad for applying an orthodontic force to the tooth surface and a mounting portion for attaching the tooth surface pad.
  • the orthodontic force is expressed by using the tooth surface pad that transmits the force to the tooth surface.
  • the occlusal surface position where the mouthpiece type orthodontic appliance contacts to a physiologically correct position, it is possible to prevent unnecessary orthodontic force from being applied to the mouthpiece type orthodontic appliance, and the upper and lower dentition with an appropriate occlusal force.
  • the position and the position of the lower jaw can be maintained in the proper position during orthodontic treatment.
  • the feeling of wearing the patient can be enhanced, and the contact position of the upper and lower devices in the patient's oral cavity is harmonized with the original oral function, and the device and function are more stable. By doing so, it is possible to achieve an orthodontic occlusion that matches the original oral function.
  • FIG. 1 is an external perspective view showing an example of a mouthpiece type orthodontic appliance 1 according to an embodiment.
  • FIG. 2 is a partial view showing an example of the maxillary dentition model, and is a view of the dentition model viewed from the occlusal surface side.
  • FIG. 3 is a partial view of a plan view showing an example of a mouthpiece 1 created by using the simulation model of the dentition shown in FIG. 2.
  • FIG. 4 is a schematic cross-sectional view of the mouthpiece 1 cut along II-II of FIG.
  • FIG. 5 is a schematic cross-sectional view of FIG. 4 in a state where the tooth surface pad 20 is replaced with a thick tooth surface pad 20.
  • FIG. 6 is a schematic cross-sectional view of FIG.
  • FIG. 7 is a side view (FIG. 7 (A)) and a perspective view (FIG. 7 (B)) showing another embodiment of the tooth surface pad.
  • FIG. 8 is a side view of the mouthpiece type removable orthodontic appliance 1 according to the embodiment.
  • FIG. 9 is a rear view of the mouthpiece type orthodontic appliance 1 shown in FIG. 8 as viewed from the back side (right side and back side in FIG. 8).
  • FIG. 10 is a bottom view of the orthodontic appliance 1 shown in FIG. 8 as viewed from the lower surface side (occlusal surface side).
  • FIG. 11 is an external perspective view showing an example of a mouthpiece type orthodontic appliance 100 according to an embodiment of the present invention.
  • FIG. 11 is an external perspective view showing an example of a mouthpiece type orthodontic appliance 100 according to an embodiment of the present invention.
  • FIG. 12 is an end view of the cut surface of the mouthpiece type orthodontic appliance 100 cut in III-III in FIG.
  • FIG. 13 is an external perspective view showing an example of the mouthpiece type orthodontic appliance 101 according to still another embodiment of the present invention.
  • FIG. 14 is a bottom view of the facing surface member 1C.
  • One embodiment of the present invention is a mouthpiece type orthodontic appliance created based on digital information on the three-dimensional shape of a patient's dentition, in which the tooth surface shape of the crown before and after the movement of the tooth to be moved and the desired position of the tooth. It is a removable mouthpiece type orthodontic appliance characterized in that the moving space required for moving to the mouthpiece is formed in the mouthpiece.
  • the shape of the labial surface before the tooth is moved (the shape of the labial side (outside) of the upper right crown).
  • the shape of the side surface of the tongue after the movement of the tooth (the shape of the lingual side (inside) of the crown No. 1 on the upper right) and the movement space that serves as the movement path of the tooth before and after the movement are formed in the mouthpiece.
  • a tooth surface pad created so as to match the lip surface shape of the tooth at the position after movement is attached to the mouthpiece.
  • the tooth surface pad may include a member that exerts an orthodontic force (moving force) such as an elastic body.
  • a mounting portion for mounting the tooth surface pad may be provided in the mouthpiece.
  • the tooth surface pad may be made of non-elastic material.
  • the orthodontic force may be exhibited by using an elastic material or an elastic body such as a spring plate for the tooth surface pad.
  • the tooth is pushed by the tooth surface pad provided on the labial side of the tooth before movement, and the tooth after movement is provided into the mouthpiece through the movement space. Move to the pinched state so that it fits the shape of the lingual surface of the tooth.
  • the orthodontic force can be increased or adjusted, and finally, the expected position, orientation, and state of the tooth after movement can be obtained. ,
  • the teeth can be moved reliably.
  • the conventional mouthpiece type orthodontic appliance When moving multiple teeth, the conventional mouthpiece type orthodontic appliance creates multiple post-movement dentition models according to the tooth movement order, and creates multiple mouthpiece type orthodontic appliances for each time series. , Need to be prepared.
  • the timing of using the tooth surface pad it is possible to move a plurality of teeth to be moved in order and in chronological order by using one device.
  • the orthodontic force is strengthened or adjusted as necessary, and the tooth surface is firmly held by the tooth surface-shaped tooth surface pad at the position of the moved tooth.
  • the tooth can be accurately moved and corrected so as to be in a three-dimensionally desired position and state by pressure contact.
  • FIG. 1 is an external perspective view showing an example of a mouthpiece type orthodontic appliance 1 according to an embodiment of the present invention.
  • This mouthpiece type orthodontic appliance 1 is attached to the dentition of the maxilla.
  • the mouthpiece type correction device 1 is provided with a unique configuration for realizing correction in the portion indicated by the broken line arrow A2. In the following, the peculiar configuration will be described more specifically.
  • FIG. 2 is a partial view showing an example of the maxillary dentition model, and is a partial view of the dentition model as viewed from the occlusal surface side.
  • a post-movement model of the maxillary central incisor (upper right No. 1) UR1 is created, and it is superimposed on the pre-movement model. Created by giving a moving space that can be oriented and in a state.
  • the simulation model of the dentition can be made by, for example, a dental CAD / CAM system.
  • FIG. 3 is a partial view of a plan view showing an example of a mouthpiece 1 created by using the simulation model of the dentition shown in FIG. 2.
  • the mouthpiece 1 is formed with recesses 3R1, 3R2, 3R3 ..., 3L1, 3L2, 3L3, ... That fit each tooth of the maxilla, and each recess fits into each tooth constituting the dentition of the maxilla. Can be.
  • the mouthpiece 1 can be made as a thick mouthpiece using an elastic material.
  • a thin sheet may be pressed into multiple layers to form a mouthpiece.
  • the undercut portion if blocked out, it may be made of an inelastic material.
  • FIG. 4 is a schematic cross-sectional view of the mouthpiece 1 cut along II-II of FIG.
  • the mouthpiece 1 is formed with a recess 3R1 into which the first UR1 on the upper right is fitted.
  • the mouthpiece 1 has an outer covering portion 11 that covers the outer surface (lip side surface) of the tooth, an inner covering portion 12 that covers the inner surface surface (tongue side surface) of the tooth, and an occlusal covering portion that covers the occlusal side of the tooth. 13 and are included.
  • the inner surface 14 of the outer cover portion 11 has an inner surface shape to which the crown surface shape of the outer surface (lip side surface) before the movement of the upper right No. 1 UR1 which is the tooth to be moved is transferred.
  • the inner surface 15 of the inner covering portion 12 has an inner surface shape to which the crown surface shape of the inner surface (tongue side surface) after the movement of the upper right No. 1 UR1 which is the tooth to be moved is transferred.
  • the inner surface 16 of the occlusal covered portion 13 has a shape along the moving flow line of the occlusal tip portion of the upper right No. 1 UR1 which is the tooth to be moved.
  • a mounting portion 17 is provided on the inner surface 14 of the outer cover portion 11.
  • the mounting portion 17 includes a recess recessed from the surface of the inner surface 14 into the outer cover portion 11.
  • the recess has a relatively narrow opening area at the entrance 171 and a large space area at the inner portion 172 of the recess.
  • the tooth surface pad 20 can be mounted in the recess 3R1 of the mouthpiece 1. Specifically, the tooth surface pad 20 is attached along the inner surface 14 of the outer cover portion 11. The tooth surface pad 20 is for developing and enhancing the orthodontic force for moving the tooth with respect to the upper right No. 1 UR1 which is the tooth to be moved, and for directing the moving direction.
  • the tooth surface pad 20 includes a mounting protrusion 21 that fits into the mounting portion 17. With the mounting protrusion 21 fitted in the mounting portion 17, the outer surface 22 of the tooth surface pad 20 is in close contact with the inner surface 14 of the outer cover portion 11, and the inner surface 23 is the crown of No. 1 UR1 on the upper right. Can be pressed against the outer surface (side of the lips). Then, a corrective force for movement is applied to the upper right No. 1 UR1.
  • the tooth surface pad 20 is created according to the three-dimensional shape of the moving space, but a plurality of tooth surface pads whose thickness is gradually increased in accordance with the movement of the tooth. 20 may be prepared.
  • FIG. 5 exemplifies a tooth surface pad 20 which is relatively thicker than FIG. 4 but relatively thinner than FIG.
  • FIG. 6 illustrates a tooth surface pad 20 that is relatively thicker than that of FIG. 5 and is finally used. In this way, the orthodontic force can be adjusted by replacing the tooth surface pad 20 according to the movement of the teeth.
  • the upper right No. 1 UR1 can be moved to a desired position.
  • the thickness of the tooth surface pad 20 may be set so that the overcorrection force is applied more than the position after the actual movement. In this way, the tooth can be reliably moved to the desired position.
  • the material of the tooth surface pad 20 may be formed of, for example, an inelastic resin material or an elastic material.
  • the tooth surface pad 20 may be made of an elastic material such as silicon resin or silicon rubber, or may be combined with an elastic leaf spring or the like. It may be used as a rubber pad.
  • FIG. 7 is a side view (FIG. 7 (A)) and a perspective view (FIG. 7 (B)) showing another embodiment of the tooth surface pad.
  • the tooth surface pad 30 shown in FIG. 7 is formed of an elastic body including a leaf spring 31 as an example. That is, the leaf spring 31 includes a base portion 32 and a pad portion 33 provided substantially parallel to the base portion 32 at a certain interval from the base portion 32.
  • the base portion 32 and the pad portion 33 may be formed by bending, for example, the lower end side of the leaf spring 31 into a curved shape.
  • the outer surface of the base portion 32 opposite to the surface facing the pad portion 33 may be curved so as to be in close contact with the inner surface 14 of the outer cover portion 11.
  • the outer surface of the base portion 32 is provided with a mounting protrusion 21 that fits into the mounting portion 17 (see FIG. 4) formed on the inner surface 14 of the outer cover portion 11 of the mouthpiece 1.
  • the inner surface of the pad portion 33 (the surface opposite to the surface facing the base portion 32) has a surface shape along the crown shape of the outer surface (lip side surface) after the movement of the upper right No. 1 UR1 which is the tooth to be moved. May be good. Further, small protrusions 35 such as resin may be provided on the inner surface of the pad portion 33 at predetermined positions.
  • the orthodontic force can also be exhibited by the crown pad 30 shown in FIGS. 7 (A) and 7 (B). Then, in the case of the tooth surface pads 30 shown in FIGS. 7A and 7B, a plurality of tooth surface pads 30 having different bending conditions and intervals between the base portion 32 and the pad portions 33 are prepared and replaced. , The orthodontic force can be adjusted according to the movement of the teeth.
  • Bite force quotient is one of the forces that suppresses the antagonistic force that acts to disengage this device and prevents unwanted tooth movement. This occlusal force and occlusal position keep the device in the proper position and condition and allow the corrective force to act properly. Therefore, it is important to properly utilize the quotient force for the stable maintenance of the device in order to obtain good treatment results.
  • the teeth after movement are arranged at the position between the upper and lower jaws where the upper and lower dentitions mesh in the patient's oral cavity, and a predictive model is produced.
  • the upper and lower dentition occlusal positions in the row are not always the correct jaw position and the relationship between the upper and lower jaws. This is because the position of biting, that is, the position of the lower jaw may be displaced due to the incorrect dentition.
  • the mouthpiece type orthodontic device since the device covers the occlusal surface of the tooth, premature contact usually occurs at the molar tooth portion. Moreover, the way of hitting may be different on the left and right. In this way, in the mouthpiece type orthodontic appliance that covers the entire dentition including the occlusal surface, the upper and lower devices are evenly in contact with the entire occlusal surface side at the physiological position, and the occlusal force is applied appropriately and evenly. That is usually difficult.
  • the occlusal surface side contact position of the mouthpiece type orthodontic device is adjusted to the physiologically and functionally appropriate mandibular position, and the occlusal force is evenly applied to the entire surface of the device occlusal surface side contact surface. ..
  • the occlusal of the physiological upper and lower dentition in the oral cavity or the occlusal acquisition that memorizes the contact positional relationship is performed.
  • the physiological positional relationship is confirmed in the oral cavity, and the positional relationship between the upper and lower mouthpiece type orthodontic appliances is recorded at the upper and lower jaw relationship positions.
  • Occlusion acquisition More specifically, when the occlusion is obtained, the thickness of the upper and lower mouthpiece type orthodontic appliance is taken into consideration, and the occlusion of the upper and lower dentition positions in the physiological mandibular position in the opened state is obtained accordingly.
  • the occlusal surface position where the facing surfaces of the upper and lower mouthpiece type orthodontic devices are in contact with each other (the upper and lower devices or either device and the facing dentition).
  • Contact position is set, and for example, when the device is mounted up and down, a maxillary facing surface portion and a mandibular facing surface portion are created and attached to the maxillary device and the mandibular device, respectively.
  • the morphology of the maxillary facing surface is transferred to the facing surface of the maxillary device.
  • the form of the facing surface for the mandible is transferred to the facing surface of the mandibular device.
  • the upper and lower mouthpiece type orthodontic appliances are brought into contact with each other on the upper and lower facing surfaces, so that the occlusal force is evenly applied to the entire upper and lower mouthpiece type orthodontic appliances at the physiologically appropriate position of the lower jaw. It is possible to firmly suppress the reaction that antagonizes the orthodontic force, maintain the upper and lower devices in an appropriate position, and more reliably move the desired teeth.
  • FIG. 8 is a side view of the mouthpiece type removable orthodontic appliance 1 according to the embodiment.
  • This orthodontic appliance 1 is an orthodontic appliance attached to the permanent dentition of the maxilla.
  • the maxillary orthodontic appliance 1 is basically the same as the configuration of the orthodontic appliance 1 described with reference to FIG.
  • FIG. 9 is a rear view of the orthodontic appliance 1 shown in FIG. 8 as viewed from the back side (right side and back side in FIG. 8).
  • FIG. 10 is a bottom view of the orthodontic appliance 1 shown in FIG. 8 as viewed from the lower surface side (occlusal surface side).
  • an engagement shape 131 for performing an appropriate occlusal is formed on the outer bottom surface of the occlusal cover portion 13 of the mouthpiece.
  • the engagement shape 131 may include a convex or concave shape formed on the outer bottom surface of the occlusal cover portion 13.
  • the engagement shape 131 may be a step (step) formed on the outer bottom surface of the occlusal portion 13. The engagement shape 131 is exaggerated for ease of understanding.
  • the engagement shape 131 is occluded so that the upper and lower orthodontic devices abut (occlude) at a physiologically appropriate upper and lower jaw relationship position with the mouthpiece type orthodontic device 1 mounted in the actual oral cavity. Any engagement shape 131 may be used as long as it is obtained and the obtained occlusal acquisition is realized.
  • the engagement shape 131 is the above step (step)
  • the mandible in the orthodontic treatment during the growth period, the mandible is occluded at a position where the mandible is guided to a desired position symmetrically in front of the original position, and the position is obtained.
  • the mandible is guided anteriorly each time it engages, and it can be applied to a mandibular orthodontic treatment that promotes anterior growth of the mandible.
  • the mouthpiece has a two-layer structure of not only the above elastic material but also the elastic material and the non-elastic material that supports the elastic material.
  • the mouthpiece body having recesses that fit the teeth and dentition, and a non-elastic material such as a hard resin that wraps the occlusal side surface of the mouthpiece body and supports the mouthpiece body.
  • a base is provided. This suppresses deformation and reaction to the adjacent tooth due to the orthodontic force applied to the moving tooth, and the occlusal surface of the base is physiologically matched to the occlusal surface shape of the opposing dentition or the opposing mouthpiece. It is possible to give or adjust a shape that makes contact evenly on the entire surface.
  • a mating member mounting portion may be provided on the base portion, and the mating surface member having a shape that is physiologically evenly contacted may be attached to the mounting portion.
  • FIG. 11 is an external perspective view showing an example of a mouthpiece type orthodontic appliance 100 according to an embodiment of the present invention.
  • the mouthpiece type orthodontic appliance 100 is attached to the dentition of the upper jaw in the same manner as the mouthpiece type orthodontic apparatus 1 described with reference to FIG. 1, and as an example, the portion indicated by the broken line arrow A2 is corrected. It has a unique structure for doing so. This peculiar configuration is the same as that provided in the mouthpiece type correction device 1 described above.
  • the feature of the mouthpiece type orthodontic appliance 100 is that a base portion 1B made of an inelastic material such as a hard resin that wraps the occlusal side surface of the mouthpiece body 1 made of an elastic material and supports the mouthpiece body 1 is provided. It is that you are.
  • FIG. 12 is an end view of the cut surface of the mouthpiece type orthodontic appliance 100 cut in III-III in FIG.
  • the mouthpiece type orthodontic appliance 100 includes a mouthpiece body 1 and a base portion 1B.
  • the mouthpiece body 1 is made of an elastic material such as silicone as an example.
  • the mouthpiece body 1 is formed with a recess 3 for attaching to the teeth.
  • the inner side walls 3W1 and 3W2 of the recess 3 are shaped so as to be in close contact with the inner crown surface and the outer crown surface of the tooth to be mounted (for example, upper left No. 7), respectively.
  • the bottom wall 3W3 of the recess 3 is shaped so as to be in close contact with the occlusal surface of the tooth to be mounted (for example, No. 7 on the upper left).
  • the base portion 1B wraps the occlusal surface side of the mouthpiece body 1, and is formed of an inelastic material such as a hard resin as an example.
  • the occlusal surface 1BF which is the lower surface of the base portion 1B, is provided with an engagement shape 131 for physiologically engaging with the opposite teeth of the mandibular dentition or the orthodontic device attached to the mandibular dentition.
  • connection between the base portion 1B and the mouthpiece main body 1 can be performed firmly and fixedly, for example, by mechanically fitting and adhering the elastic material and the non-elastic material by unevenness.
  • the base portion 1B is made of a non-elastic material and is hard. Therefore, when the engagement shape 131 applied to the occlusal surface 1BF of the base portion 1B does not completely fit the patient's physiological occlusal position and needs to be adjusted, it is used in normal dentistry. It can be easily adjusted by using a machine such as cutting to be performed. That is, the mouthpiece type orthodontic appliance 100 can accurately confirm and adjust the error of the occlusal contact position.
  • FIG. 13 is an external perspective view showing an example of a mouthpiece type orthodontic appliance 101 according to still another embodiment of the present invention.
  • the mouthpiece type orthodontic device 101 is also attached to the dentition of the upper jaw in the same manner as the mouthpiece type orthodontic device 1 described with reference to FIG. 1, and as an example, the portion indicated by the broken line arrow A2 is corrected. It has a unique configuration for the purpose. This peculiar configuration is the same as that provided in the mouthpiece type correction device 1 described above.
  • the feature of the mouthpiece type orthodontic appliance 101 is that a base portion 1B made of an inelastic material such as a hard resin that wraps the occlusal side surface of the mouthpiece body 1 made of an elastic material and supports the mouthpiece body 1 is provided.
  • the facing member 1C can be attached to the lower surface (occlusal surface) 1BF of the base portion 1B.
  • the facing surface member 1C is made of a non-elastic material such as a hard resin, and is a thin plate member having a substantially U-shaped or horseshoe-shaped plan view that fits the lower surface 1BF of the base portion 1B.
  • a plurality of convex portions 102 for positioning and fixing when mounting on the lower surface 1BF of the base portion 1B may be provided on the upper surface of the facing surface member 1C.
  • the lower surface (occlusal surface) of the mating surface member 1C is engaged with the mating teeth of the mandibular dentition or the orthodontic device attached to the mandibular dentition for physiological occlusion.
  • the shape 131 is given.
  • the facing member 1C is made of a hard material, the engagement shape 131 can be easily adjusted by using a machine such as cutting. Further, when it is necessary to significantly change the engagement shape 131, the facing surface member 1C can be replaced with a separately prepared facing surface member.
  • an elastic hook may be provided on the outer surface of the facing member 1C, or the facing member 1C with a facebow may be used.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

Mouthpiece-type removable corrective devices have plentiful room for improvement in order to increase therapeutic effect by applying necessary corrective force and moving teeth. This mouthpiece-type removable orthodontic device includes: a mouthpiece 1 that is mounted on a row of teeth in an upper jaw or a lower jaw; and a concave section 3R1 formed in the mouthpiece and mounted on a tooth to be moved. The concave section includes: an abutting inner surface that abuts the crown of the tooth to be moved at the before and after movement positions of the tooth; and a movement space that follows a movement line that joins the positions of the crown before and after the movement. Moreover, this mouthpiece-type removable orthodontic device includes: a tooth flank pad 20, abutting a tooth flank on the start-of-movement side of the crown before the movement, for imparting corrective force to the tooth flank; and an attachment section 17 that is disposed on an inner surface of the concave section, for attaching the tooth flank pad.

Description

マウスピース型可撤式矯正装置Mouthpiece type removable orthodontic appliance
 本発明は、歯列矯正歯科分野における歯を移動するためのマウスピース型可撤式歯列矯正装置に関する。 The present invention relates to a mouthpiece type removable orthodontic device for moving teeth in the field of orthodontic dentistry.
 歯列や噛み合わせを、患者個々の顔や口腔機能に合わせて、立体的に理想的な位置及び状態に配置・配列する矯正歯科治療分野において、歯の表面にブラケットを装着し、そのブラケットに結紮し、装着する弾性ワイヤーにより、また、強固なワイヤー上を滑らして、歯の移動を図るマルチブラケット治療法が主流である。しかし、患者は、2~3年に及ぶ治療期間、そのブラケットやワイヤー等の固定式矯正装置を口腔内に装着した状態で過ごす必要がある。そのため、それら装着した装置の周りに食渣が溜まりやすくなり、虫歯や歯肉炎等に罹患するリスクや、笑ったり、会話時に、装着が視えること、また、食事や会話時の不便、不快感等の課題が、治療を開始し進める上で、患者の大きな負担となっている。 In the field of orthodontic treatment where the dentition and occlusion are arranged and arranged in a three-dimensionally ideal position and state according to the face and oral function of each patient, a bracket is attached to the surface of the tooth and the bracket is used. The mainstream is a multi-bracket treatment method that aims to move teeth by ligating and attaching an elastic wire and sliding on a strong wire. However, the patient needs to spend a treatment period of 2 to 3 years with a fixed orthodontic device such as a bracket or a wire attached in the oral cavity. Therefore, food residue tends to accumulate around the device attached to them, and there is a risk of suffering from tooth decay and gingival inflammation, the attachment can be seen when laughing or talking, and inconvenience and discomfort during eating and talking. Such issues are a heavy burden on the patient in starting and advancing the treatment.
 ところで、古くから、可撤式の装置もあるが、小児期の混合歯列期の限られた歯の移動には対応できるが、永久歯全体を、顎顔面と調和するように立体的に配置する現在のマルチブラケットシステムによる治療効果には及ばない。 By the way, although there is a removable device for a long time, it can cope with the limited movement of teeth in the mixed dentition period in childhood, but the entire permanent tooth is arranged three-dimensionally so as to be in harmony with the maxillofacial surface. It does not reach the therapeutic effect of the current multi-bracket system.
 また、古くから、Tooth Positioner(または、Dynamic Positioner)と呼ばれるシリコーン素材などの弾性高分子素材で、歯の移動予測模型で作成されたマウスピース式の可撤式矯正装置がある。この矯正装置は、軽微な歯の移動や、マルチブラケット矯正装置による治療後の細かな仕上げや、治療後の後戻り症例の治療に使用される装置で、上下マウスピースを一体にし、咬むことで、矯正力を発現するものである。しかし、一度作成されたシリコーン素材の装置は、切削などにより形態修正をすることが難しい。そのため、矯正力の増強や移動方向の修正などの調整を要する度に、新しく作成し直す必要がある。しかし、所望の位置に歯を移動させるために必要な移動量、厚み等の調整が難しいため、矯正力が強過ぎたり、弱すぎたりして、繰り返し作り直しても、効果が不確かな上、製作コストが高額のため、現在、あまり利用されなくなっている。 In addition, there is a mouthpiece-type removable orthodontic appliance made with a tooth movement prediction model using an elastic polymer material such as a silicone material called ToothPositioner (or DynamicPositioner) for a long time. This orthodontic appliance is used for minor tooth movements, fine finishing after treatment with a multi-bracket orthodontic appliance, and treatment of relapse cases after treatment. It develops corrective power. However, it is difficult to correct the shape of a silicon material device once created by cutting or the like. Therefore, it is necessary to recreate it every time adjustments such as enhancement of correction force and correction of movement direction are required. However, since it is difficult to adjust the amount of movement, thickness, etc. required to move the tooth to the desired position, the orthodontic force is too strong or too weak, and even if it is repeatedly remade, the effect is uncertain and it is manufactured. Due to its high cost, it is not used much now.
 また、この矯正装置は、上下両顎に装着する一塊の装置であるため、外形が大きくなり、装着時の違和感や、呼吸がしづらいことや、唾液が垂れるなど、患者の使用協力を得にくい。 In addition, since this orthodontic device is a mass device that is attached to both the upper and lower jaws, the outer shape becomes large, and it is difficult to obtain the patient's cooperation due to discomfort when wearing it, difficulty in breathing, and saliva dripping. ..
 さらに、上下一塊なので、上下顎のマウスピースの立体的位置関係が非生理的な位置関係にある場合には、顎関節や顎関節周囲筋が痛くなることがある。しかし、装置作成に当たり、生理的な上下位置関係を、歯を予測移動後の歯列上で再現することは難しいため、上下顎関係の生理的な位置に適合するように、当該装置を作成することは難しいという課題もある。 Furthermore, since it is a single upper and lower mass, if the three-dimensional positional relationship of the upper and lower jaw mouthpieces is in a non-physiological positional relationship, the temporomandibular joint and the muscles around the temporomandibular joint may hurt. However, when creating the device, it is difficult to reproduce the physiological vertical positional relationship on the dentition after the predicted movement of the teeth, so the device is created so as to match the physiological position of the vertical jaw relationship. There is also the issue that things are difficult.
 そこで、近年、歯列形状デジタル情報を利用し、CAD・CAMにより、少しずつ歯を移動させた複数のマウスピース(一例として、70~80個)を作成し、順に付け替えて、歯を移動させていくマウスピース型矯正治療法が実用に供されている。 Therefore, in recent years, using digital information on the shape of the dentition, a plurality of mouthpieces (70 to 80 as an example) in which the teeth are moved little by little are created by CAD / CAM, and the teeth are replaced in order to move the teeth. A mouthpiece-type orthodontic treatment method is being put into practical use.
 しかしながら、従来のマウスピース型可撤式矯正装置は、マルチブラケットにおいて指摘されていた課題は解決できるが、しっかりと必要な矯正力を加え、効率良く的確に歯の移動を行って治療効果を高めるためには、改善の余地が数多く存在する。 However, although the conventional mouthpiece type removable orthodontic appliance can solve the problems pointed out in the multi-bracket, it applies the necessary orthodontic force firmly and efficiently and accurately moves the teeth to enhance the therapeutic effect. There is a lot of room for improvement.
特開2018-061639号公報JP-A-2018-061639 特開2008-131978号公報Japanese Unexamined Patent Publication No. 2008-131978 特開2003-290250号公報Japanese Unexamined Patent Publication No. 2003-290250
 マウスピース型矯正装置を含む従来の可撤式矯正装置では、矯正力に拮抗する力が、装置を支える歯に加わるため、装置を保持する歯が支えられる以上の矯正力を加えることはできない。装置を保持する力以上に矯正力を加えると、装置が外れ、口腔内に装着して使用することができないからである。従って、従来の可撤式矯正装置では、一度に調整できる歯の移動量に制限がある。そのため、少しずつ歯の移動を行うため、治療期間が長期化する傾向がある。特に、従来のマウスピース型矯正装置の場合には、矯正力を調整するのではなく、装置を取り換えることで、矯正力を変化させて歯の移動を進めるため、多数の装置を用意する必要があり、治療期間や装置作成コストの面が課題となっている。 In the conventional removable orthodontic appliance including the mouthpiece type orthodontic appliance, a force that antagonizes the orthodontic force is applied to the teeth that support the orthodontic appliance, so that it is not possible to apply an orthodontic force that exceeds the support of the teeth that hold the orthodontic appliance. This is because if a corrective force is applied beyond the force for holding the device, the device will come off and cannot be worn in the oral cavity for use. Therefore, in the conventional removable orthodontic appliance, there is a limit to the amount of tooth movement that can be adjusted at one time. Therefore, the treatment period tends to be prolonged because the teeth are moved little by little. In particular, in the case of a conventional mouthpiece type orthodontic device, it is necessary to prepare a large number of devices in order to change the orthodontic force and promote the movement of teeth by replacing the device instead of adjusting the orthodontic force. Therefore, the treatment period and the cost of making the device are issues.
 また、従来のマウスピース型矯正装置は、薄く、均質な材質であるため、装置の中央部(歯の咬合面を覆う部分)と端部(歯頸部を覆う端縁部分)で、歪や変形量が異なり、その弾性力、すなわち、適用される矯正力に差が生じる。特に、端縁部分では、着脱を繰り返すうちに変形するなどし、十分な矯正力を持続的にかけることが難しい。 In addition, since the conventional mouthpiece type orthodontic appliance is thin and made of a uniform material, distortion and distortion occur at the center (the part that covers the occlusal surface of the tooth) and the end (the edge that covers the cervical part) of the device. The amount of deformation is different, and the elastic force, that is, the applied straightening force is different. In particular, it is difficult to continuously apply sufficient corrective force to the edge portion because it deforms as it is repeatedly attached and detached.
 更に、従来のマウスピース型矯正装置は、歯の咬合面全体を覆うため、上下のマウスピース型矯正装置が接触する位置、あるいは、上下どちらかのマウスピース型矯正装置と対合歯が接触する位置が、生理的に適切な位置として考慮されていないため、非生理的な上下歯列の位置関係による偏った咬合力が装置に加わることがある。このため、装置全体に生じる歪による望ましくない歯の移動や、下顎の位置が偏位する危険性も指摘されている。 Further, since the conventional mouthpiece type orthodontic device covers the entire occlusal surface of the tooth, the position where the upper and lower mouthpiece type orthodontic devices come into contact, or the facing tooth comes into contact with either the upper or lower mouthpiece type orthodontic device. Since the position is not considered as a physiologically appropriate position, a biased occlusal force due to the non-physiological positional relationship of the upper and lower dentition may be applied to the device. Therefore, it has been pointed out that there is a risk of undesired tooth movement due to distortion generated in the entire device and deviation of the position of the lower jaw.
 そこで、本発明は、移動させたい歯に対してだけ矯正力を加えることができる新たなマウスピース型の可撤式矯正装置を創出することを主たる目的とする。 Therefore, the main object of the present invention is to create a new mouthpiece-type removable orthodontic appliance that can apply orthodontic force only to the tooth to be moved.
 この発明は、患者歯列形態のデジタル立体情報から作成した移動前後の予測歯列に基づくマウスピース型矯正装置であって、移動したい歯の移動前後の位置にある歯に適合する歯冠形状と、その移動前後の歯冠位置を結ぶ移動動線に沿った、当該歯を移動するための移動スペースとが、装置内に形成されていて、移動前歯冠の移動始点側の歯面に当接して、当該歯面に矯正力を付与する歯面パットと、この歯面パットを取り付けるための取り付け部とを備えていることを特徴とする可撤式マウスピース型矯正装置である。 The present invention is a mouthpiece type orthodontic device based on a predicted tooth row before and after movement created from digital three-dimensional information of the patient's tooth row morphology, and has a crown shape suitable for a tooth at a position before and after movement of the tooth to be moved. , A movement space for moving the tooth along the movement line connecting the crown positions before and after the movement is formed in the device and abuts on the tooth surface on the movement start point side of the movement front crown. The removable mouthpiece type orthodontic device is provided with a tooth surface pad for applying an orthodontic force to the tooth surface and a mounting portion for attaching the tooth surface pad.
 歯面に力を伝える歯面パットを用いて矯正力を発現する。患者個々に合わせて規格された歯面パットに弾性材や板バネを組み合わせることで、歯を個別に移動させることが可能となる。 The orthodontic force is expressed by using the tooth surface pad that transmits the force to the tooth surface. By combining an elastic material and a leaf spring with a tooth surface pad standardized for each patient, it is possible to move the teeth individually.
 また、金属部品をすべて規定、規格化し、歯と接触しない位置に組み込む構造にすることで、金属アレルギー患者であっても、矯正治療を施行することが可能となる。 In addition, by defining and standardizing all metal parts and incorporating them in a position that does not come into contact with teeth, it will be possible to perform orthodontic treatment even for patients with metal allergies.
 また、マウスピース型矯正装置が接触する咬合面位置を、生理的に正しい位置に設定することで、マウスピース型矯正装置に不要な矯正力が加わることを防ぎ、適正な咬合力による上下歯列位置及び下顎の位置を、矯正治療中適正位置に維持することができる。 In addition, by setting the occlusal surface position where the mouthpiece type orthodontic appliance contacts to a physiologically correct position, it is possible to prevent unnecessary orthodontic force from being applied to the mouthpiece type orthodontic appliance, and the upper and lower dentition with an appropriate occlusal force. The position and the position of the lower jaw can be maintained in the proper position during orthodontic treatment.
 また、上下のマウスピース装置を別々に使用することで、患者装着感を高めることができ、その上下装置の患者口腔内における接触位置を、本来の口腔機能に調和させ、より装置と機能を安定させることで、本来の口腔機能にあった歯列咬合を達成することができる。 In addition, by using the upper and lower mouthpiece devices separately, the feeling of wearing the patient can be enhanced, and the contact position of the upper and lower devices in the patient's oral cavity is harmonized with the original oral function, and the device and function are more stable. By doing so, it is possible to achieve an orthodontic occlusion that matches the original oral function.
図1は、一実施形態に係るマウスピース型矯正装置1の一例を示す外観斜視図である。FIG. 1 is an external perspective view showing an example of a mouthpiece type orthodontic appliance 1 according to an embodiment. 図2は、上顎歯列模型の一例を示す部分図であり、歯列模型を咬合面側から見た図である。FIG. 2 is a partial view showing an example of the maxillary dentition model, and is a view of the dentition model viewed from the occlusal surface side. 図3は、図2に示す歯列のシュミレーション模型を用いて作成したマウスピース1の一例を示す平面視の部分図である。FIG. 3 is a partial view of a plan view showing an example of a mouthpiece 1 created by using the simulation model of the dentition shown in FIG. 2. 図4は、図3のII-IIに沿って切断したマウスピース1の図解的な断面図である。FIG. 4 is a schematic cross-sectional view of the mouthpiece 1 cut along II-II of FIG. 図5は、図4に対し、厚みの厚い歯面パット20に取り替えた状態の図解的な断面図である。FIG. 5 is a schematic cross-sectional view of FIG. 4 in a state where the tooth surface pad 20 is replaced with a thick tooth surface pad 20. 図6は、図4に対し、さらに厚みの厚い歯面パット20に取り替えた状態の図解的な断面図である。FIG. 6 is a schematic cross-sectional view of FIG. 4 in a state where the tooth surface pad 20 is replaced with a thicker tooth surface pad 20. 図7は、歯面パットの他の実施形態を示す側面図(図7(A))及び斜視図(図7(B))である。FIG. 7 is a side view (FIG. 7 (A)) and a perspective view (FIG. 7 (B)) showing another embodiment of the tooth surface pad. 図8は、一実施形態に係るマウスピース型可撤式歯列矯正装置1の側面図である。FIG. 8 is a side view of the mouthpiece type removable orthodontic appliance 1 according to the embodiment. 図9は、図8に示すマウスピース型歯列矯正装置1を奥側(図8において右側、背面側)から見た背面図である。FIG. 9 is a rear view of the mouthpiece type orthodontic appliance 1 shown in FIG. 8 as viewed from the back side (right side and back side in FIG. 8). 図10は、図8に示す歯列矯正装置1を下面側(咬合面側)から見た底面図である。FIG. 10 is a bottom view of the orthodontic appliance 1 shown in FIG. 8 as viewed from the lower surface side (occlusal surface side). 図11は、本発明の一実施形態に係るマウスピース型矯正装置100の一例を示す外観斜視図である。FIG. 11 is an external perspective view showing an example of a mouthpiece type orthodontic appliance 100 according to an embodiment of the present invention. 図12は、図11におけるIII-IIIで切断したマウスピース型矯正装置100の切断面の端面図である。FIG. 12 is an end view of the cut surface of the mouthpiece type orthodontic appliance 100 cut in III-III in FIG. 図13は、本発明のさらに他の実施形態に係るマウスピース型矯正装置101の一例を示す外観斜視図である。FIG. 13 is an external perspective view showing an example of the mouthpiece type orthodontic appliance 101 according to still another embodiment of the present invention. 図14は、対合面部材1Cの下面図である。FIG. 14 is a bottom view of the facing surface member 1C.
 以下では、本発明の実施形態について詳細に説明をする。
[第1実施形態]
この発明の一実施形態は、患者歯列立体形状デジタル情報に基づいて作成したマウスピース型矯正装置であって、移動したい歯の移動前後の歯冠の歯面形状と、その歯を所望の位置に移動するために必要な移動スペースが、マウスピース内に形成されていること特徴とする可撤式マウスピース型矯正装置である。
Hereinafter, embodiments of the present invention will be described in detail.
[First Embodiment]
One embodiment of the present invention is a mouthpiece type orthodontic appliance created based on digital information on the three-dimensional shape of a patient's dentition, in which the tooth surface shape of the crown before and after the movement of the tooth to be moved and the desired position of the tooth. It is a removable mouthpiece type orthodontic appliance characterized in that the moving space required for moving to the mouthpiece is formed in the mouthpiece.
 例えば、前突した上顎右側中切歯(右上1番)を、舌側に移動する場合、当該歯の移動前の唇側面形状(右上1番の歯冠の唇側(外側)の面形状)と、当該歯の移動後の舌側面形状(右上1番の歯冠の舌側(内側)の面形状)と、移動前後の歯の移動経路となる移動スペースとを、マウスピース内に形成しておく。そして、移動後の位置の当該歯の唇面形状に適合するように作成した歯面パットをマウスピース内に取り付ける。歯面パットには、弾性体等の矯正力(移動力)を発現する部材が含まれていてもよい。マウスピース内には、前記の歯面パットを取り付ける取り付け部が設けられていてもよい。 For example, when the upper right middle incisor (upper right No. 1) that has collided forward is moved to the lingual side, the shape of the labial surface before the tooth is moved (the shape of the labial side (outside) of the upper right crown). And, the shape of the side surface of the tongue after the movement of the tooth (the shape of the lingual side (inside) of the crown No. 1 on the upper right) and the movement space that serves as the movement path of the tooth before and after the movement are formed in the mouthpiece. Keep it. Then, a tooth surface pad created so as to match the lip surface shape of the tooth at the position after movement is attached to the mouthpiece. The tooth surface pad may include a member that exerts an orthodontic force (moving force) such as an elastic body. A mounting portion for mounting the tooth surface pad may be provided in the mouthpiece.
 マウスピースの素材が弾性素材で作成されている場合、歯面パットは、非弾性素材で作成してもよい。一方、マウスピース素材が非弾性素材で作成されている場合は、歯面パットを、弾性素材、もしくは、バネ板などの弾性体にすることで、矯正力を発現できるようにしてもよい。 If the mouthpiece material is made of elastic material, the tooth surface pad may be made of non-elastic material. On the other hand, when the mouthpiece material is made of a non-elastic material, the orthodontic force may be exhibited by using an elastic material or an elastic body such as a spring plate for the tooth surface pad.
 前例の場合、最終的に、当該歯は、移動前の当該歯の唇面側に付与された歯面パットにより押され、移動スペースを通って、マウスピース内に付与された移動後の当該歯の舌面側形状に適合するように、挟まれる状態まで移動する。歯面パットの厚み、形状等を調整し付け替えることで矯正力を増強したり、調整することができ、最終的に、想定していた当該歯の移動後の位置、向き及び状態となるように、確実に歯の移動を行うことができる。 In the case of the precedent, finally, the tooth is pushed by the tooth surface pad provided on the labial side of the tooth before movement, and the tooth after movement is provided into the mouthpiece through the movement space. Move to the pinched state so that it fits the shape of the lingual surface of the tooth. By adjusting and replacing the thickness, shape, etc. of the tooth surface pad, the orthodontic force can be increased or adjusted, and finally, the expected position, orientation, and state of the tooth after movement can be obtained. , The teeth can be moved reliably.
 複数の歯を移動させる場合、従来のマウスピース型矯正装置では、歯の移動順序に合わせて複数の移動後の歯列モデルを作成し、時系列毎に、複数のマウスピース型矯正装置を作成、用意する必要がある。しかし、本実施形態では、歯面パットを使用する時期を調整することで、一つの装置を用いて、移動したい複数の歯を、順序立てて、時系列的に移動することが可能となる。 When moving multiple teeth, the conventional mouthpiece type orthodontic appliance creates multiple post-movement dentition models according to the tooth movement order, and creates multiple mouthpiece type orthodontic appliances for each time series. , Need to be prepared. However, in the present embodiment, by adjusting the timing of using the tooth surface pad, it is possible to move a plurality of teeth to be moved in order and in chronological order by using one device.
 また、本実施形態では、歯面パットを取り替えることで、必要に応じ、矯正力を増強したり、調整して、移動後の歯の位置の歯面形状の歯面パットで歯面をしっかりと圧接して、立体的に所望の位置及び状態になるよう、当該歯を的確に移動して矯正できる。 Further, in the present embodiment, by replacing the tooth surface pad, the orthodontic force is strengthened or adjusted as necessary, and the tooth surface is firmly held by the tooth surface-shaped tooth surface pad at the position of the moved tooth. The tooth can be accurately moved and corrected so as to be in a three-dimensionally desired position and state by pressure contact.
 以下、図面を参照して、より具体的に説明する。 Hereinafter, a more specific explanation will be given with reference to the drawings.
 図1は、本発明の一実施形態に係るマウスピース型矯正装置1の一例を示す外観斜視図である。このマウスピース型矯正装置1は、上顎の歯列に装着するものである。マウスピース型矯正装置1は、一例として、破線矢印A2で示す部分に矯正を実現するための特有の構成を具備しているものである。以下では、その特有の構成をより具体的に説明する。 FIG. 1 is an external perspective view showing an example of a mouthpiece type orthodontic appliance 1 according to an embodiment of the present invention. This mouthpiece type orthodontic appliance 1 is attached to the dentition of the maxilla. As an example, the mouthpiece type correction device 1 is provided with a unique configuration for realizing correction in the portion indicated by the broken line arrow A2. In the following, the peculiar configuration will be described more specifically.
 図2は、上顎歯列模型の一例を示す部分図であり、歯列模型を咬合面側から見た部分図である。 FIG. 2 is a partial view showing an example of the maxillary dentition model, and is a partial view of the dentition model as viewed from the occlusal surface side.
 この歯列模型において、前突した上顎右側中切歯(右上1番)UR1を、図示の実線の状態UR1から破線の状態UR1´まで移動(矯正)する場合を例にとって説明する。 In this dentition model, a case where the maxillary right central incisor (No. 1 on the upper right) UR1 that has a front collision is moved (corrected) from the solid line state UR1 in the figure to the broken line state UR1'will be described as an example.
 図2に示す歯列模型は、上顎右側中切歯(右上1番)UR1の移動後モデルを作成し、それを移動前モデルと重ね合せ、移動前の右上1番UR1が移動後の位置、向き、状態となれる移動スペースを付与することにより作成する。当該歯列のシュミレーション模型は、例えば歯科用CAD/CAMシステムにより作ることができる。 In the dentition model shown in FIG. 2, a post-movement model of the maxillary central incisor (upper right No. 1) UR1 is created, and it is superimposed on the pre-movement model. Created by giving a moving space that can be oriented and in a state. The simulation model of the dentition can be made by, for example, a dental CAD / CAM system.
 図3は、図2に示す歯列のシュミレーション模型を用いて作成したマウスピース1の一例を示す平面視の部分図である。 FIG. 3 is a partial view of a plan view showing an example of a mouthpiece 1 created by using the simulation model of the dentition shown in FIG. 2.
 マウスピース1には、上顎各歯に嵌合する凹部3R1,3R2,3R3…,3L1,3L2,3L3,…が形成されていて、各凹部がそれぞれ上顎の歯列を構成する各歯に嵌合し得る。 The mouthpiece 1 is formed with recesses 3R1, 3R2, 3R3 ..., 3L1, 3L2, 3L3, ... That fit each tooth of the maxilla, and each recess fits into each tooth constituting the dentition of the maxilla. Can be.
 マウスピース1は、一例として、弾性素材を用いて厚目のマウスピースとして作成することができる。また、薄いシートを多層に圧接してマウスピースを作成してもよい。あるいは、アンダーカット部分のブロックアウトを行えば、非弾性素材で作成してもよい。 As an example, the mouthpiece 1 can be made as a thick mouthpiece using an elastic material. Alternatively, a thin sheet may be pressed into multiple layers to form a mouthpiece. Alternatively, if the undercut portion is blocked out, it may be made of an inelastic material.
 図4は、図3のII-IIに沿って切断したマウスピース1の図解的な断面図である。 FIG. 4 is a schematic cross-sectional view of the mouthpiece 1 cut along II-II of FIG.
 図4を参照して、マウスピース1には、右上1番UR1が嵌合する凹部3R1が形成されている。 With reference to FIG. 4, the mouthpiece 1 is formed with a recess 3R1 into which the first UR1 on the upper right is fitted.
 マウスピース1は、歯の外側面(唇側面)を被う外被部11と、歯の内側面(舌側面)を被う内被部12と、歯の咬み合せ側を被う咬合被部13とを含んでいる。そして、外被部11の内面14は、移動したい歯である右上1番UR1の移動前の外面(唇側面)の歯冠面形状が転写された内面形状になっている。 The mouthpiece 1 has an outer covering portion 11 that covers the outer surface (lip side surface) of the tooth, an inner covering portion 12 that covers the inner surface surface (tongue side surface) of the tooth, and an occlusal covering portion that covers the occlusal side of the tooth. 13 and are included. The inner surface 14 of the outer cover portion 11 has an inner surface shape to which the crown surface shape of the outer surface (lip side surface) before the movement of the upper right No. 1 UR1 which is the tooth to be moved is transferred.
 また、内被部12の内面15は、移動したい歯である右上1番UR1の移動後の内面(舌側面)の歯冠面形状が転写された内面形状になっている。さらに、咬合被部13の内面16は、移動したい歯である右上1番UR1の咬合先端部の移動動線に沿った形状になっている。 Further, the inner surface 15 of the inner covering portion 12 has an inner surface shape to which the crown surface shape of the inner surface (tongue side surface) after the movement of the upper right No. 1 UR1 which is the tooth to be moved is transferred. Further, the inner surface 16 of the occlusal covered portion 13 has a shape along the moving flow line of the occlusal tip portion of the upper right No. 1 UR1 which is the tooth to be moved.
 外被部11の内面14には、取付部17が設けられている。取付部17は、内面14の表面から外被部11内へ窪まされた凹部を含む。凹部は、その入口171が相対的に開口面積が狭く、その奥部172の空間面積が広くされている。 A mounting portion 17 is provided on the inner surface 14 of the outer cover portion 11. The mounting portion 17 includes a recess recessed from the surface of the inner surface 14 into the outer cover portion 11. The recess has a relatively narrow opening area at the entrance 171 and a large space area at the inner portion 172 of the recess.
 マウスピース1の凹部3R1内には歯面パット20を取り付けることができる。具体的には、歯面パット20は、外被部11の内面14に沿わせて取り付ける。歯面パット20は、移動したい歯である右上1番UR1に対して、当該歯が移動するための矯正力を発現し、増強し、また、移動方向を方向付けるためのものである。歯面パット20は、取付部17に嵌合する取付用突部21を備えている。取付用突部21を取付部17に嵌め込んだ状態で、歯面パット20はその外表面22が外被部11の内面14に密着し、その内表面23は、右上1番UR1の歯冠の外面(唇側面)に圧接され得る。そして、右上1番UR1に対して移動のための矯正力を付与する。 The tooth surface pad 20 can be mounted in the recess 3R1 of the mouthpiece 1. Specifically, the tooth surface pad 20 is attached along the inner surface 14 of the outer cover portion 11. The tooth surface pad 20 is for developing and enhancing the orthodontic force for moving the tooth with respect to the upper right No. 1 UR1 which is the tooth to be moved, and for directing the moving direction. The tooth surface pad 20 includes a mounting protrusion 21 that fits into the mounting portion 17. With the mounting protrusion 21 fitted in the mounting portion 17, the outer surface 22 of the tooth surface pad 20 is in close contact with the inner surface 14 of the outer cover portion 11, and the inner surface 23 is the crown of No. 1 UR1 on the upper right. Can be pressed against the outer surface (side of the lips). Then, a corrective force for movement is applied to the upper right No. 1 UR1.
 図5及び図6を参照して、歯面パット20は、移動スペースの立体的形状に合わせて作成するが、歯の移動に対応させて、厚みを段階的に厚くした複数個の歯面パット20を準備してもよい。図5では、図4に比べて相対的に厚みが厚いが、図6に比べて相対的に厚みの薄い歯面パット20が例示されている。また、図6では、図5に比べて相対的に厚みの厚い、最終的に使用する歯面パット20が例示されている。このように、歯の移動に合わせて、歯面パット20を付け替えることで矯正力を調整することができる。 With reference to FIGS. 5 and 6, the tooth surface pad 20 is created according to the three-dimensional shape of the moving space, but a plurality of tooth surface pads whose thickness is gradually increased in accordance with the movement of the tooth. 20 may be prepared. FIG. 5 exemplifies a tooth surface pad 20 which is relatively thicker than FIG. 4 but relatively thinner than FIG. Further, FIG. 6 illustrates a tooth surface pad 20 that is relatively thicker than that of FIG. 5 and is finally used. In this way, the orthodontic force can be adjusted by replacing the tooth surface pad 20 according to the movement of the teeth.
 以上のように、マウスピース1の凹部3R1内に、厚み(矯正力)の異なる複数の歯面パット20を段階的に付け替えることにより、右上1番UR1を所望の位置まで移動させることができる。 As described above, by gradually replacing a plurality of tooth surface pads 20 having different thicknesses (orthodontic forces) in the recess 3R1 of the mouthpiece 1, the upper right No. 1 UR1 can be moved to a desired position.
 なお、最終的には、実際の移動後の位置よりも過矯正力が加わるように歯面パット20の厚みを設定してもよい。こうすれば、歯を確実に所望の位置に移動させることができる。 Finally, the thickness of the tooth surface pad 20 may be set so that the overcorrection force is applied more than the position after the actual movement. In this way, the tooth can be reliably moved to the desired position.
 歯面パット20の素材は、マウスピース1が弾性素材で形成されている場合は、例えば、非弾性の樹脂素材で形成してもよいし、弾性素材で形成してもよい。 When the mouthpiece 1 is made of an elastic material, the material of the tooth surface pad 20 may be formed of, for example, an inelastic resin material or an elastic material.
 また、マウスピース1が非弾性素材で形成されている場合は、歯面パット20は、例えば、シリコン樹脂、シリコンゴム等の弾性素材で形成してもよいし、弾性を有する板ばね等を組み合わせた歯面パットとしてもよい。 When the mouthpiece 1 is made of a non-elastic material, the tooth surface pad 20 may be made of an elastic material such as silicon resin or silicon rubber, or may be combined with an elastic leaf spring or the like. It may be used as a rubber pad.
 もちろん、これら素材の組み合せは任意であり、要は、歯面パット20により適切な矯正力が発現されればよい。 Of course, the combination of these materials is arbitrary, and the point is that the tooth surface pad 20 should exhibit an appropriate orthodontic force.
 図7は、歯面パットの他の実施形態を示す側面図(図7(A))及び斜視図(図7(B))である。 FIG. 7 is a side view (FIG. 7 (A)) and a perspective view (FIG. 7 (B)) showing another embodiment of the tooth surface pad.
 図7に示す歯面パット30は、一例として、板ばね31を含む弾性体で形成されている。すなわち、板ばね31は、基部32と、基部32と一定の間隔を空けて基部32とほぼ平行に設けられたパット部33とを含む。基部32とパット部33とは、板ばね31の例えば下端側が湾曲状に折り曲げられて形成されていてもよい。パット部33と対向する面と反対側の基部32の外表面は、外被部11の内面14に密接するように曲成されていてもよい。そして、基部32の外表面には、マウスピース1の外被部11の内面14に形成された取付部17(図4を参照)に嵌合する取付用突部21が備えられている。パット部33の内表面(基部32と対向する面と反対の面)は、移動したい歯である右上1番UR1の移動後の外面(唇側面)の歯冠形状に沿った面形状であってもよい。また、パット部33の内表面には、所定の位置に樹脂等の小突起35が設けられていてもよい。 The tooth surface pad 30 shown in FIG. 7 is formed of an elastic body including a leaf spring 31 as an example. That is, the leaf spring 31 includes a base portion 32 and a pad portion 33 provided substantially parallel to the base portion 32 at a certain interval from the base portion 32. The base portion 32 and the pad portion 33 may be formed by bending, for example, the lower end side of the leaf spring 31 into a curved shape. The outer surface of the base portion 32 opposite to the surface facing the pad portion 33 may be curved so as to be in close contact with the inner surface 14 of the outer cover portion 11. The outer surface of the base portion 32 is provided with a mounting protrusion 21 that fits into the mounting portion 17 (see FIG. 4) formed on the inner surface 14 of the outer cover portion 11 of the mouthpiece 1. The inner surface of the pad portion 33 (the surface opposite to the surface facing the base portion 32) has a surface shape along the crown shape of the outer surface (lip side surface) after the movement of the upper right No. 1 UR1 which is the tooth to be moved. May be good. Further, small protrusions 35 such as resin may be provided on the inner surface of the pad portion 33 at predetermined positions.
 図7(A)及び(B)に示す歯冠パット30によっても、矯正力を発現することができる。そして、図7(A)及び(B)に示す歯面パット30の場合、基部32とパット部33との折り曲げ具合や間隔を変えた歯面パット30を複数個準備し、それらを付け替えることで、矯正力を歯の移動に合わせて調整することができる。 The orthodontic force can also be exhibited by the crown pad 30 shown in FIGS. 7 (A) and 7 (B). Then, in the case of the tooth surface pads 30 shown in FIGS. 7A and 7B, a plurality of tooth surface pads 30 having different bending conditions and intervals between the base portion 32 and the pad portions 33 are prepared and replaced. , The orthodontic force can be adjusted according to the movement of the teeth.
[第2実施形態]
 矯正力を加えると、必ず、その矯正力に拮抗する力が装置に、そして、その装置と繋がっている歯にも加わる。すなわち、装置が外れようとする反作用が生じる。この装置が外れるように作用する拮抗力を抑え、望ましくない歯の移動を防ぐ力の一つが咬合力である。この咬合力及び咬合位置により、装置は、適正な位置及び状態に維持され、矯正力を適正に作用させることができる。そのため、咬合力を装置の安定した維持に適正に活かすことは、良好な治療結果を得る上で重要である。
[Second Embodiment]
Whenever an orthodontic force is applied, a force that antagonizes the orthodontic force is applied to the device and to the teeth connected to the device. That is, a reaction occurs in which the device tries to come off. Bite force quotient is one of the forces that suppresses the antagonistic force that acts to disengage this device and prevents unwanted tooth movement. This occlusal force and occlusal position keep the device in the proper position and condition and allow the corrective force to act properly. Therefore, it is important to properly utilize the quotient force for the stable maintenance of the device in order to obtain good treatment results.
 しかし、従来のマウスピース型矯正装置の製作にあたっては、患者口腔内で上下歯列が噛み合う上下顎間位置で移動後の歯を配列し、予測模型を作製するが、この治療前の不正な歯列における上下歯列咬合位置が、必ずしも正しい顎位、上下顎間関係であるとは限らない。不正な歯列により、咬む位置、すなわち、下顎の位置が偏位している可能性があるためである。 However, in the production of the conventional mouthpiece type orthodontic appliance, the teeth after movement are arranged at the position between the upper and lower jaws where the upper and lower dentitions mesh in the patient's oral cavity, and a predictive model is produced. The upper and lower dentition occlusal positions in the row are not always the correct jaw position and the relationship between the upper and lower jaws. This is because the position of biting, that is, the position of the lower jaw may be displaced due to the incorrect dentition.
 また、マウスピース型の矯正装置では、装置が歯の咬合面を覆うので、通常、臼歯部で早期接触が生じる。しかも、左右で当たり方が異なる場合もある。このように、咬合面を含む歯列全体を覆うマウスピース型矯正装置では、上下の装置が生理的な位置で、咬合面側全面で均等に接触し、適正、かつ、均等に咬合力がかかることは、通常、困難である。もし、装置間で非対称な接触が生じ、左右どちらかの一方に強い咬合力がかかるようであれば、その強く当たる領域の歯には、圧下力がかかり、上下歯列が噛み合う咬合平面に歪みや傾斜が生じる恐れがある。また、より安定して噛める位置を探し、下顎の位置が本来の位置から偏位する恐れもある。そこで、マウスピース型矯正装置では、生理的な下顎位で、上下歯列全面に咬合力が均等に加わることで、装置が機能的に適正な位置に維持され、作用することが、良好な治療効果を得る上で、重量な要素と言える。 Further, in the mouthpiece type orthodontic device, since the device covers the occlusal surface of the tooth, premature contact usually occurs at the molar tooth portion. Moreover, the way of hitting may be different on the left and right. In this way, in the mouthpiece type orthodontic appliance that covers the entire dentition including the occlusal surface, the upper and lower devices are evenly in contact with the entire occlusal surface side at the physiological position, and the occlusal force is applied appropriately and evenly. That is usually difficult. If asymmetrical contact occurs between the devices and a strong occlusal force is applied to either the left or right side, a compressive force is applied to the teeth in the area where the strong occlusal force is applied, and the upper and lower dentitions are distorted into the occlusal plane where they mesh. Or tilt may occur. In addition, there is a risk that the position of the lower jaw will deviate from the original position by searching for a more stable biting position. Therefore, in the mouthpiece type orthodontic device, it is a good treatment that the device is maintained in a functionally appropriate position and acts by evenly applying the occlusal force to the entire upper and lower dentition in the physiological mandibular position. It can be said that it is a heavy factor in obtaining the effect.
 この実施形態では、マウスピース型矯正装置の咬合面側接触位置を、生理的、機能的に適正な下顎位に合わせ、装置咬合面側接触面全面に、咬合力を均等に加える構成を採用した。 In this embodiment, the occlusal surface side contact position of the mouthpiece type orthodontic device is adjusted to the physiologically and functionally appropriate mandibular position, and the occlusal force is evenly applied to the entire surface of the device occlusal surface side contact surface. ..
 通常、上下歯列形状を採取時、口腔内での生理的な上下歯列の咬合、もしくは、接触位置関係を記憶する咬合採得が行われる。しかし、これら咬合接触情報だけでは、マウスピース型矯正装置を装着し、装置を介して装置の厚み分開口した位置で接触した状態における下顎の生理的な位置、すなわち、上下歯列の生理的に適正な位置関係は判らない。 Normally, when collecting the shape of the upper and lower dentition, the occlusal of the physiological upper and lower dentition in the oral cavity or the occlusal acquisition that memorizes the contact positional relationship is performed. However, with only these occlusal contact information, the physiological position of the lower jaw in the state where the mouthpiece type orthodontic device is attached and the device is in contact with the device at a position opened by the thickness of the device, that is, the physiological position of the upper and lower dentition. I don't know the proper positional relationship.
 そのため、例えば、マウスピース型矯正装置を実際の口腔内に装着した状態で、生理的な位置関係を口腔内で確認し、その上下顎関係位置で上下マウスピース型矯正装置間の位置関係の記録(咬合採得)をする。より具体的には、咬合採得を行う際に、上下マウスピース型矯正装置の厚みを考慮し、その分、開口した状態での生理的な下顎位の上下歯列位置関係の咬合採得する。 Therefore, for example, with the mouthpiece type orthodontic appliance attached in the actual oral cavity, the physiological positional relationship is confirmed in the oral cavity, and the positional relationship between the upper and lower mouthpiece type orthodontic appliances is recorded at the upper and lower jaw relationship positions. (Occlusion acquisition). More specifically, when the occlusion is obtained, the thickness of the upper and lower mouthpiece type orthodontic appliance is taken into consideration, and the occlusion of the upper and lower dentition positions in the physiological mandibular position in the opened state is obtained accordingly.
 この採得した生理的な開口時の咬合採得に基づいて、上下マウスピース型矯正装置の各対合面同士が接触する咬合面位置(上下装置もしくは、そのどちらかの装置と対合歯列との接触位置)を設定し、例えば、上下に装置を装着する場合には、上顎用対合面部と、下顎用対合面部とを作成し、各々、上顎装置及び下顎装置に取り付ける。あるいは、上顎用対合面の形態を、上顎装置の対合面に転写する。または、下顎用対合面の形態を、下顎装置の対合面に転写する。これにより、上下マウスピース型矯正装置は、この上下対合面で接触することで、生理的に適正な下顎の位置で、上下のマウスピース型矯正装置全体に、咬合力が均等に加えられ、しっかりと、矯正力に拮抗する反作用を抑え、上下装置を適正な位置に維持し、所望とする歯の移動をより確実に行うことができる。 Based on the obtained occlusal acquisition at the time of physiological opening, the occlusal surface position where the facing surfaces of the upper and lower mouthpiece type orthodontic devices are in contact with each other (the upper and lower devices or either device and the facing dentition). (Contact position) is set, and for example, when the device is mounted up and down, a maxillary facing surface portion and a mandibular facing surface portion are created and attached to the maxillary device and the mandibular device, respectively. Alternatively, the morphology of the maxillary facing surface is transferred to the facing surface of the maxillary device. Alternatively, the form of the facing surface for the mandible is transferred to the facing surface of the mandibular device. As a result, the upper and lower mouthpiece type orthodontic appliances are brought into contact with each other on the upper and lower facing surfaces, so that the occlusal force is evenly applied to the entire upper and lower mouthpiece type orthodontic appliances at the physiologically appropriate position of the lower jaw. It is possible to firmly suppress the reaction that antagonizes the orthodontic force, maintain the upper and lower devices in an appropriate position, and more reliably move the desired teeth.
 以下、図面を参照して、より具体的に説明をする。 Below, a more specific explanation will be given with reference to the drawings.
 図8は、一実施形態に係るマウスピース型可撤式歯列矯正装置1の側面図である。この矯正装置1は、上顎の永久歯列に装着する矯正装置である。 FIG. 8 is a side view of the mouthpiece type removable orthodontic appliance 1 according to the embodiment. This orthodontic appliance 1 is an orthodontic appliance attached to the permanent dentition of the maxilla.
 上顎用の矯正装置1は、基本的には、図1を参照して説明した矯正装置1の構成と同様である。 The maxillary orthodontic appliance 1 is basically the same as the configuration of the orthodontic appliance 1 described with reference to FIG.
 図9は、図8に示す歯列矯正装置1を奥側(図8において右側、背面側)から見た背面図である。図10は、図8に示す歯列矯正装置1を下面側(咬合面側)から見た底面図である。 FIG. 9 is a rear view of the orthodontic appliance 1 shown in FIG. 8 as viewed from the back side (right side and back side in FIG. 8). FIG. 10 is a bottom view of the orthodontic appliance 1 shown in FIG. 8 as viewed from the lower surface side (occlusal surface side).
 図8~10を参照して、この実施形態の特徴は、マウスピースの咬合被部13の外底面に、適切な咬合が行われるための係合形状131が形成されていることである。係合形状131は、一例として、咬合被部13の外底面に形成された凸や凹を含んでいてもよい。また、係合形状131は、咬合被部13の外底面に形成されたステップ(段差)であってもよい。なお、理解を容易にするため、係合形状131は、誇張して示されている。 With reference to FIGS. 8 to 10, a feature of this embodiment is that an engagement shape 131 for performing an appropriate occlusal is formed on the outer bottom surface of the occlusal cover portion 13 of the mouthpiece. As an example, the engagement shape 131 may include a convex or concave shape formed on the outer bottom surface of the occlusal cover portion 13. Further, the engagement shape 131 may be a step (step) formed on the outer bottom surface of the occlusal portion 13. The engagement shape 131 is exaggerated for ease of understanding.
 係合形状131は、マウスピース型矯正装置1を実際の口腔内に装着した状態で、生理的に適切な上下顎関係位置で上下の矯正装置が当接し合うよう(咬合し合うよう)に咬合採得を得て、当該取得した咬合採得を実現する係合形状131であればよい。 The engagement shape 131 is occluded so that the upper and lower orthodontic devices abut (occlude) at a physiologically appropriate upper and lower jaw relationship position with the mouthpiece type orthodontic device 1 mounted in the actual oral cavity. Any engagement shape 131 may be used as long as it is obtained and the obtained occlusal acquisition is realized.
 特に係合形状131が、上記のステップ(段差)の場合、成長期の矯正治療では、下顎を本来の位置から前方で、左右対称な所望の位置に誘導した位置で咬合採得し、その位置で、対合面部を作成することで、噛み合う度に、下顎は前方に誘導され、下顎の前方成長を促す顎骨矯正治療に応用することもできる。 In particular, when the engagement shape 131 is the above step (step), in the orthodontic treatment during the growth period, the mandible is occluded at a position where the mandible is guided to a desired position symmetrically in front of the original position, and the position is obtained. By creating a facing portion, the mandible is guided anteriorly each time it engages, and it can be applied to a mandibular orthodontic treatment that promotes anterior growth of the mandible.
[第3実施形態]
 シリコーン等の弾性素材は、成型後、切削等による形状や厚みの精密な調整が難しい。そのため、例えばTooth positionerに利用されるシリコーン素材等の弾性素材を用いて、片顎用マウスピースを作成した場合には、対合面の形状、厚みを生理的な下顎位置に合わして、正確に修正、調整するのが難しい。
[Third Embodiment]
For elastic materials such as silicone, it is difficult to precisely adjust the shape and thickness by cutting after molding. Therefore, for example, when a mouthpiece for one jaw is created using an elastic material such as a silicone material used for the Tooth positioner, the shape and thickness of the facing surface are adjusted to the physiological mandibular position to be accurate. Difficult to fix and adjust.
 そこで、この実施形態では、マウスピースを上記弾性素材だけでなく、その弾性素材と、それを支持する非弾性素材との二層構造にしたものである。 Therefore, in this embodiment, the mouthpiece has a two-layer structure of not only the above elastic material but also the elastic material and the non-elastic material that supports the elastic material.
 具体的には、弾性素材で構成され、歯、歯列に適合する凹部を備えたマウスピース本体と、マウスピース本体の咬合側面を包み、マウスピース本体を支える硬質樹脂等の非弾性素材で構成される基底部とを設ける。これにより、移動歯に加える矯正力による隣在歯部への変形及び反作用を抑え、基底部咬合面を、対合歯列、若しくは、対合するマウスピースの咬合面形状に合わせて、生理的に、全面で均等に接触する形状を付与すること、あるいは、調整することが可能となる。 Specifically, it is composed of an elastic material and a mouthpiece body having recesses that fit the teeth and dentition, and a non-elastic material such as a hard resin that wraps the occlusal side surface of the mouthpiece body and supports the mouthpiece body. A base is provided. This suppresses deformation and reaction to the adjacent tooth due to the orthodontic force applied to the moving tooth, and the occlusal surface of the base is physiologically matched to the occlusal surface shape of the opposing dentition or the opposing mouthpiece. It is possible to give or adjust a shape that makes contact evenly on the entire surface.
 基底部は硬質なので、通常の歯科で多用される切削や調整の手段を用いて、咬合接触位置の誤差を正確に確認及び調整することができる。 Since the base is hard, it is possible to accurately check and adjust the error in the occlusal contact position by using cutting and adjustment means that are often used in ordinary dentistry.
 なお、基底部の咬合面形状そのものではなく、基底部に対合部材取付部を設け、その取付部に生理的に均等に接触する形状を付与した対合面部材を取り付けた構成としてもよい。 It should be noted that, instead of the occlusal surface shape itself of the base portion, a mating member mounting portion may be provided on the base portion, and the mating surface member having a shape that is physiologically evenly contacted may be attached to the mounting portion.
 以下では、本実施形態について、図面を参照してより具体的に説明をする。 Hereinafter, the present embodiment will be described more specifically with reference to the drawings.
 図11は、本発明の一実施形態に係るマウスピース型矯正装置100の一例を示す外観斜視図である。マウスピース型矯正装置100は、図1を参照して説明したマウスピース型矯正装置1と同様に、上顎の歯列に装着するものであり、一例として、破線矢印A2で示す部分に矯正を実現するための特有の構成を具備しているものである。この特有の構成については、先に説明したマウスピース型矯正装置1が具備しているものと同様である。マウスピース型矯正装置100の特徴は、弾性素材で形成されたマウスピース本体1の咬合側面を包み、マウスピース本体1を支える硬質樹脂等の非弾性素材で構成される基底部1Bが設けられていることである。 FIG. 11 is an external perspective view showing an example of a mouthpiece type orthodontic appliance 100 according to an embodiment of the present invention. The mouthpiece type orthodontic appliance 100 is attached to the dentition of the upper jaw in the same manner as the mouthpiece type orthodontic apparatus 1 described with reference to FIG. 1, and as an example, the portion indicated by the broken line arrow A2 is corrected. It has a unique structure for doing so. This peculiar configuration is the same as that provided in the mouthpiece type correction device 1 described above. The feature of the mouthpiece type orthodontic appliance 100 is that a base portion 1B made of an inelastic material such as a hard resin that wraps the occlusal side surface of the mouthpiece body 1 made of an elastic material and supports the mouthpiece body 1 is provided. It is that you are.
 図12は、図11におけるIII-IIIで切断したマウスピース型矯正装置100の切断面の端面図である。 FIG. 12 is an end view of the cut surface of the mouthpiece type orthodontic appliance 100 cut in III-III in FIG.
 図12を参照して、マウスピース型矯正装置100は、マウスピース本体1及び基底部1Bを含む。マウスピース本体1は、一例としてシリコーン等の弾性素材で形成されている。マウスピース本体1には歯に装着するための凹部3が形成されている。凹部3の内側壁3W1及び3W2は、それぞれ、装着される歯(例えば上左7番)の内側歯冠面及び外側歯冠面に密接する形状とされている。また、凹部3の底壁3W3は、装着される歯(例えば上左7番)の咬合面に密着する形状とされている。 With reference to FIG. 12, the mouthpiece type orthodontic appliance 100 includes a mouthpiece body 1 and a base portion 1B. The mouthpiece body 1 is made of an elastic material such as silicone as an example. The mouthpiece body 1 is formed with a recess 3 for attaching to the teeth. The inner side walls 3W1 and 3W2 of the recess 3 are shaped so as to be in close contact with the inner crown surface and the outer crown surface of the tooth to be mounted (for example, upper left No. 7), respectively. Further, the bottom wall 3W3 of the recess 3 is shaped so as to be in close contact with the occlusal surface of the tooth to be mounted (for example, No. 7 on the upper left).
 基底部1Bは、マウスピース本体1の咬合面側を包んでおり、一例として硬質樹脂等の非弾性素材で形成されている。基底部1Bの下面である咬合面1BFには、下顎の歯列の対合歯又は下顎の歯列に装着された矯正装置と生理的に咬合するための係合形状131が付与されている。 The base portion 1B wraps the occlusal surface side of the mouthpiece body 1, and is formed of an inelastic material such as a hard resin as an example. The occlusal surface 1BF, which is the lower surface of the base portion 1B, is provided with an engagement shape 131 for physiologically engaging with the opposite teeth of the mandibular dentition or the orthodontic device attached to the mandibular dentition.
 基地部1Bとマウスピース本体1との結合は、一例として、凸凹による弾性素材と非弾性素材との機械的嵌合接着により、強固にかつ固定的に行うことができる。 The connection between the base portion 1B and the mouthpiece main body 1 can be performed firmly and fixedly, for example, by mechanically fitting and adhering the elastic material and the non-elastic material by unevenness.
 マウスピース型矯正装置100は、基底部1Bが非弾性素材でできており、硬質である。このため、基底部1Bの咬合面1BFに付与される係合形状131が、患者の生理的な咬合位置に完全にフィットしておらず、調整をする必要が生じたとき、通常の歯科で使用される切削等の機具を用いて容易に調整できる。つまり、このマウスピース型矯正装置100は、咬合接触位置の誤差を正確に確認して、調整することができる。 In the mouthpiece type orthodontic appliance 100, the base portion 1B is made of a non-elastic material and is hard. Therefore, when the engagement shape 131 applied to the occlusal surface 1BF of the base portion 1B does not completely fit the patient's physiological occlusal position and needs to be adjusted, it is used in normal dentistry. It can be easily adjusted by using a machine such as cutting to be performed. That is, the mouthpiece type orthodontic appliance 100 can accurately confirm and adjust the error of the occlusal contact position.
 図13は、本発明のさらに他の実施形態に係るマウスピース型矯正装置101の一例を示す外観斜視図である。マウスピース型矯正装置101も、図1を参照して説明したマウスピース型矯正装置1と同様に、上顎の歯列に装着するものであり、一例として破線矢印A2で示す部分に矯正を実現するための特有の構成を具備しているものである。この特有の構成については、先に説明したマウスピース型矯正装置1が具備しているものと同様である。マウスピース型矯正装置101の特徴は、弾性素材で形成されたマウスピース本体1の咬合側面を包み、マウスピース本体1を支える硬質樹脂等の非弾性素材で構成される基底部1Bが設けられていることであり、しかも、基底部1Bの下面(咬合面)1BFに対して対合面部材1Cが装着できるようにされていることである。 FIG. 13 is an external perspective view showing an example of a mouthpiece type orthodontic appliance 101 according to still another embodiment of the present invention. The mouthpiece type orthodontic device 101 is also attached to the dentition of the upper jaw in the same manner as the mouthpiece type orthodontic device 1 described with reference to FIG. 1, and as an example, the portion indicated by the broken line arrow A2 is corrected. It has a unique configuration for the purpose. This peculiar configuration is the same as that provided in the mouthpiece type correction device 1 described above. The feature of the mouthpiece type orthodontic appliance 101 is that a base portion 1B made of an inelastic material such as a hard resin that wraps the occlusal side surface of the mouthpiece body 1 made of an elastic material and supports the mouthpiece body 1 is provided. Moreover, the facing member 1C can be attached to the lower surface (occlusal surface) 1BF of the base portion 1B.
 対合面部材1Cは、硬質樹脂等の非弾性素材で形成されていて、基底部1Bの下面1BFに適合する平面視が略U字形又は馬蹄形の薄板部材である。対合面部材1Cの上面には、基底部1Bの下面1BFに装着する際の位置決め及び固定用の複数の凸部102が設けられていてもよい。 The facing surface member 1C is made of a non-elastic material such as a hard resin, and is a thin plate member having a substantially U-shaped or horseshoe-shaped plan view that fits the lower surface 1BF of the base portion 1B. A plurality of convex portions 102 for positioning and fixing when mounting on the lower surface 1BF of the base portion 1B may be provided on the upper surface of the facing surface member 1C.
 対合面部材1Cの下面(咬合面)には、図14に示すように、下顎の歯列の対合歯又は下顎の歯列に装着された矯正装置と生理的に咬合するための係合形状131が付与されている。 As shown in FIG. 14, the lower surface (occlusal surface) of the mating surface member 1C is engaged with the mating teeth of the mandibular dentition or the orthodontic device attached to the mandibular dentition for physiological occlusion. The shape 131 is given.
 この実施形態においても、対合面部材1Cは硬質材で形成されているので、係合形状131を切削等の機具を用いて容易に調整できる。また、係合形状131を大幅に変更する必要がある場合は、対合面部材1Cを別に準備した対合面部材に置換することもできる。 Also in this embodiment, since the facing member 1C is made of a hard material, the engagement shape 131 can be easily adjusted by using a machine such as cutting. Further, when it is necessary to significantly change the engagement shape 131, the facing surface member 1C can be replaced with a separately prepared facing surface member.
 なお、対合面部材1Cの例えば外側面に、エラスティック用のフックを設けたり、Face bowを付与した対合面部材1Cを使用する等の応用の途も考えられる。 It should be noted that, for example, an elastic hook may be provided on the outer surface of the facing member 1C, or the facing member 1C with a facebow may be used.
 この発明は、以上説明した実施形態の内容に限定されるものではなく、請求項記載の範囲内において種々の変更が可能である。 The present invention is not limited to the contents of the embodiments described above, and various modifications can be made within the scope of the claims.
 本出願は、2020年6月9日に日本国特許庁に提出された特願2020-100449号に対応しており、この出願の全開示はここに引用により組み込まれるものとする。 This application corresponds to Japanese Patent Application No. 200-100449 submitted to the Japan Patent Office on June 9, 2020, and the entire disclosure of this application shall be incorporated herein by reference.
 1、100、101  マウスピース型矯正装置
 2A  破線矢印
 3  凹部
 11  外被部
 12  内被部
 13  咬合被部
 14、15、16  内面
 17  取付部
 20、30  歯面パット
 21  取付用突部
 31  板ばね
 32  基部
 33  パット部
 35  小突起
 102  凸部
 131  係合形状
 171  入口
 172  奥部
1,100,101 Mouthpiece type orthodontic appliance 2A Dashed line arrow 3 Concave part 11 Outer cover part 12 Inner cover part 13 Occlusal cover part 14, 15, 16 Inner surface 17 Mounting part 20, 30 Tooth surface pad 21 Mounting protrusion 31 Leaf spring 32 Base 33 Pad 35 Small protrusion 102 Convex 131 Engagement shape 171 Entrance 172 Back

Claims (6)

  1.  患者の歯列形態のデジタル立体情報に基づくマウスピース型矯正装置であって、
     上顎または下顎の歯列に装着するマウスピース本体と、
     前記マウスピース本体に形成された移動したい歯に装着する凹部であって、当該凹部は、移動したい歯の移動前後位置にある歯の歯冠に当接する当接内面と、前記移動前後の歯冠位置を結ぶ移動動線に沿った移動スペースとを含み、
     移動前の前記歯冠の移動始点側の歯面に当接して、当該歯面に矯正力を付与するための歯面パットと、
     前記歯面パットを取り付けるために、前記凹部の内面に設けられた取付部とを有していることを特徴とする、マウスピース型可撤式歯列矯正装置。
    A mouthpiece-type orthodontic appliance based on digital three-dimensional information on the patient's dentition.
    Mouthpiece body to be attached to the dentition of the upper or lower jaw,
    A recess formed in the mouthpiece body to be attached to the tooth to be moved, and the recess is a contact inner surface that abuts on the crown of the tooth at the position before and after the movement of the tooth to be moved, and the crown before and after the movement. Including a moving space along a moving flow line connecting positions, including
    A tooth surface pad for abutting the tooth surface on the movement start point side of the crown before movement to apply an orthodontic force to the tooth surface, and
    A mouthpiece-type removable orthodontic appliance comprising a mounting portion provided on the inner surface of the recess for mounting the tooth surface pad.
  2.  前記歯面パットは、異なる矯正力を発現する複数の歯面パットを含み、複数の歯面パットが、矯正力に応じて段階的に取り替え可能とされていることを特徴とする、請求項1に記載のマウスピース型可撤式歯列矯正装置。 The tooth surface pad includes a plurality of tooth surface pads that exhibit different orthodontic forces, and the plurality of tooth surface pads can be replaced in stages according to the orthodontic force. Mouthpiece type removable orthodontic appliance as described in.
  3.  前記マウスピース本体の咬合面には、咬合時に対向する歯列又はその歯列に装着されたマウスピースと適切に咬合することのできる係合形状が付与されていることを特徴とする、請求項1又は2に記載のマウスピース型可撤式歯列矯正装置。 The occlusal surface of the mouthpiece body is provided with an engaging shape capable of appropriately engaging with the facing dentition or the mouthpiece attached to the dentition at the time of occlusal. The mouthpiece type removable orthodontic appliance according to 1 or 2.
  4.  前記マウスピース本体は、弾性素材によって構成されており、
     前記マウスピース本体の咬合側面には、前記マウスピース本体を支える非弾性素材で構成された基底部が設けられていることを特徴とする、請求項1又は2に記載のマウスピース型可撤式歯列矯正装置。
    The mouthpiece body is made of an elastic material.
    The mouthpiece type removable type according to claim 1 or 2, wherein a base portion made of an inelastic material that supports the mouthpiece body is provided on the occlusal side surface of the mouthpiece body. Orthodontic appliance.
  5.  前記基底部の咬合面には、咬合時に対向する歯列又はその歯列に装着されたマウスピースと適切に咬合することのできる係合形状が付与されていることを特徴とする、請求項4に記載のマウスピース型可撤式歯列矯正装置。 4. The occlusal surface of the base portion is provided with an engaging shape capable of appropriately engaging with the dentition facing the dentition at the time of occlusal or a mouthpiece attached to the dentition. Mouthpiece type removable orthodontic appliance as described in.
  6.  前記基底部の咬合面には、非弾性素材で構成された対合面部材が取り外し可能に装着されており、
     前記対合面部材の外表面には、咬合時に対向する歯列又はその歯列に装着されたマウスピースと適切に咬合することのできる係合形状が付与されていることを特徴とする、請求項4に記載のマウスピース型可撤式歯列矯正装置。
    A facing member made of a non-elastic material is detachably attached to the occlusal surface of the base portion.
    The outer surface of the facing member is provided with an engaging shape capable of appropriately engaging with the facing dentition or a mouthpiece attached to the dentition at the time of occlusion. Item 4. The mouthpiece type removable orthodontic apparatus according to Item 4.
PCT/JP2021/021871 2020-06-09 2021-06-09 Mouthpiece-type removable corrective device WO2021251421A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2022530600A JPWO2021251421A1 (en) 2020-06-09 2021-06-09

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020-100449 2020-06-09
JP2020100449 2020-06-09

Publications (1)

Publication Number Publication Date
WO2021251421A1 true WO2021251421A1 (en) 2021-12-16

Family

ID=78845721

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/021871 WO2021251421A1 (en) 2020-06-09 2021-06-09 Mouthpiece-type removable corrective device

Country Status (2)

Country Link
JP (1) JPWO2021251421A1 (en)
WO (1) WO2021251421A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115054387A (en) * 2022-05-20 2022-09-16 上海交通大学医学院附属第九人民医院 Composite dental shell type appliance with various mechanical characteristics

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006511243A (en) * 2002-04-03 2006-04-06 ジャック ケイス ヒリアード Straightening aligner assist system
JP2008532563A (en) * 2004-03-25 2008-08-21 ドロール オーソ‐デザイン リミテッド Orthodontic apparatus and method
JP2013502290A (en) * 2009-08-21 2013-01-24 デンツプリー・インターナショナル・インコーポレーテッド Manufacture of orthodontic aligner by overlay method
WO2017007962A1 (en) * 2015-07-07 2017-01-12 Align Technology, Inc. Fabrication of attachment templates and multi-material aligners
JP2019507001A (en) * 2016-03-02 2019-03-14 ドロール・オーソ・デザイン・リミテッド・(エアロデンティス) Orthodontic system with tooth movement and position measurement, monitoring and control
JP2019528909A (en) * 2016-09-19 2019-10-17 ドロール・オーソ・デザイン・リミテッド・(エアロデンティス) Orthodontic system with tooth movement and position measurement, monitoring and control

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006511243A (en) * 2002-04-03 2006-04-06 ジャック ケイス ヒリアード Straightening aligner assist system
JP2008532563A (en) * 2004-03-25 2008-08-21 ドロール オーソ‐デザイン リミテッド Orthodontic apparatus and method
JP2013502290A (en) * 2009-08-21 2013-01-24 デンツプリー・インターナショナル・インコーポレーテッド Manufacture of orthodontic aligner by overlay method
WO2017007962A1 (en) * 2015-07-07 2017-01-12 Align Technology, Inc. Fabrication of attachment templates and multi-material aligners
JP2019507001A (en) * 2016-03-02 2019-03-14 ドロール・オーソ・デザイン・リミテッド・(エアロデンティス) Orthodontic system with tooth movement and position measurement, monitoring and control
JP2019528909A (en) * 2016-09-19 2019-10-17 ドロール・オーソ・デザイン・リミテッド・(エアロデンティス) Orthodontic system with tooth movement and position measurement, monitoring and control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115054387A (en) * 2022-05-20 2022-09-16 上海交通大学医学院附属第九人民医院 Composite dental shell type appliance with various mechanical characteristics

Also Published As

Publication number Publication date
JPWO2021251421A1 (en) 2021-12-16

Similar Documents

Publication Publication Date Title
JP7127092B2 (en) Dental appliance with repositioning jaw element
US20210267720A1 (en) Adjustable sleep apnea oral appliance
US9744006B2 (en) Oral apparatuses and methods for mandibular jaw manipulation
Hawley A removable retainer
US4773853A (en) Oral orthopedic appliance
US9655695B2 (en) Oral apparatuses and methods for mandibular jaw manipulation
US5415542A (en) Orthodontic finishing appliance
JP4996921B2 (en) Dental equipment
CN105982743B (en) Dental wire holder for orthodontic treatment and appliance
JP6656280B2 (en) Chewing orthodontic appliance
US20110005527A1 (en) Orthodontic appliances
JP5564079B2 (en) Orthodontic appliance
JP2011517603A (en) Lingual orthodontic appliance with removable part
KR20050053676A (en) Dental appliances for treating malocclusions
CN211094852U (en) Shell-shaped dental instrument set, shell-shaped dental instrument combination and correcting system
US11833008B1 (en) Dental appliance and method for adjusting and holding the position of a user's jaw to a relaxed position of the jaw
KR102202863B1 (en) Orthodontic appliance with mandibular orthopaedic function
WO2021251421A1 (en) Mouthpiece-type removable corrective device
JP3215287U (en) Orthodontic appliance
EP3482714B1 (en) Orthodontic appliance for dentistry
KR101251946B1 (en) Method For Manufacturing Orthodontic Kit And Orthodontic Kit Using The Same
CN110680526B (en) Individualized draw molar far-middle appliance
WO2021246495A1 (en) Mouthpiece-type removable correction device
CN210095952U (en) Invisible cat-shaped auxiliary arch appliance
CN216221740U (en) Shell-shaped appliance with arc guide plate

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21820953

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2022530600

Country of ref document: JP

Kind code of ref document: A

122 Ep: pct application non-entry in european phase

Ref document number: 21820953

Country of ref document: EP

Kind code of ref document: A1