CN210903426U - Muscle function appliance - Google Patents
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- CN210903426U CN210903426U CN201921532910.9U CN201921532910U CN210903426U CN 210903426 U CN210903426 U CN 210903426U CN 201921532910 U CN201921532910 U CN 201921532910U CN 210903426 U CN210903426 U CN 210903426U
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Abstract
The embodiment of the application discloses ware is rescued to flesh function for the II type malocclusion of treatment an's, including the upper jaw rescue facing and the lower jaw rescue facing, the upper jaw is rescued the facing and is received the upper jaw tooth, and the lower jaw is rescued the facing and is received and treat the lower jaw tooth. The upper jaw correcting tooth socket comprises an upper jaw correcting tooth socket body and a first shell positioned in a molar area of the upper jaw correcting tooth socket body; the upper surface of the first shell comprises a first stress supporting surface, a second stress supporting surface and a first sliding limiting surface; the lower jaw correcting tooth socket comprises a lower jaw correcting tooth socket body and a second shell positioned in a tooth grinding area of the lower jaw correcting tooth socket body; the upper surface of the second shell comprises a third stress supporting surface, a fourth stress supporting surface and a second sliding limiting surface. The principle of action is that for a mandible retrosystole deformity patient in a growth and development stage, the growth of condylar cartilage tissue and the reconstruction of a joint socket are stimulated in a mode of changing the position relation of the mandible, so that the mandible grows forwards, and the mandible of the patient is repositioned.
Description
Technical Field
The embodiment of the application relates to the field of corrective devices, in particular to a muscle function appliance.
Background
Generally, the obvious features of the Angle II malocclusion patients are that the relation between the upper and lower jaws and the dental arch is not regular, the lower jaw and the lower dental arch are in the far position, and the molar is in the far relation. If the mandible is receded by a distance of 1/4 molars or half of the premolar, i.e. the proximal buccal cusps of the upper and lower first permanent molars are opposite, there is a slight mesial dislocation. If the mesial buccal tip of the first permanent molar of the upper jaw is occluded between the first permanent molar of the lower jaw and the second premolar, it is a complete distal malocclusion. For the treatment of Angle ii symptomatic patients, a common method is to first use a muscle function appliance to move the mandible forward a certain distance relative to the maxilla, and then use a dental appliance to correct the diseased teeth, such as to move the maxillary molars, adduct and depress the anterior teeth, so that the upper and lower teeth establish an Angle class (AngleI) occlusion relationship.
The existing muscle function appliance generally comprises upper and lower jaw correction tooth sockets, wherein the upper and lower jaw correction tooth sockets are provided with a protrusion in a molar area, the protrusion is called as a functional accessory, when the upper and lower jaws form an occlusion relation, the functional accessory on the upper jaw correction tooth socket is contacted with the functional accessory of the lower jaw correction tooth socket, and correction force for preventing the lower jaw correction tooth socket from moving far and middle is generated. The mandible is pushed to move forwards through force transmission, so that the purpose of correction is achieved, and the functional accessory is a three-dimensional irregular curved surface body.
In practical situations, the occlusion of the patient is a dynamic movement, and the mouthpiece may deform during the treatment of the patient, thereby causing the correction effect to be poor.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a ware is rescued to flesh function, includes: an upper jaw orthodontic brace and a lower jaw orthodontic brace;
the upper jaw orthodontic braces are used for receiving upper jaw teeth to be corrected, and the lower jaw orthodontic braces are used for receiving lower jaw teeth to be corrected;
the upper jaw orthodontic brace comprises an upper jaw orthodontic brace body and a first shell positioned in a molar area of the upper jaw orthodontic brace body; wherein the first shell is distributed in a left-right corresponding manner relative to a median sagittal plane of the upper jaw orthodontic braces; the upper surface of the first shell comprises a first stress supporting surface, a second stress supporting surface and a first sliding limiting surface; the first force-bearing limiting surface is close to the throat side, the second force-bearing supporting surface is close to the incisor side, and the first sliding limiting surface is connected with the first force-bearing supporting surface and the second force-bearing supporting surface; the height of the first stressed supporting surface relative to the upper jaw orthodontic tooth socket body is higher than the height of the second stressed supporting surface relative to the upper jaw orthodontic tooth socket body, and the sum of the length of the first stressed supporting surface and the length of the second stressed supporting surface is smaller than the length of the first shell;
the lower jaw orthodontic brace comprises a lower jaw orthodontic brace body and a second shell positioned in a molar area of the lower jaw orthodontic brace body; wherein the second shell is distributed in a left-right correspondence with respect to a median sagittal plane of the mandibular orthodontic mouthpiece; the upper surface of the second shell comprises a third stressed supporting surface, a fourth stressed supporting surface and a second sliding limiting surface, wherein the third stressed limiting surface is close to the throat side, the fourth stressed supporting surface is close to the incisor side, the second sliding limiting surface is connected with the third stressed supporting surface and the fourth stressed supporting surface, and the height of the third stressed supporting surface relative to the mandibular orthodontic braces body is lower than the height of the fourth stressed supporting surface relative to the mandibular orthodontic braces body;
a correcting distance is reserved between the first shell and the second shell in the occlusion process;
and the first sliding limiting surface is attached to the second sliding limiting surface in the occlusion process.
Optionally, the side surface of the first housing is provided with a plurality of reinforcing ribs, and the reinforcing ribs of the first housing are perpendicular to the first stressed supporting surface, the second stressed supporting surface and the first sliding limiting surface respectively; the side surface of the second shell is provided with a plurality of reinforcing ribs, and the reinforcing ribs of the second shell are respectively perpendicular to the third stress supporting surface, the fourth stress supporting surface and the second sliding limiting surface.
Optionally, when the upper jaw orthodontic brace is worn on the upper jaw teeth, the first stressed supporting surface and the second stressed supporting surface are perpendicular to the teeth direction, and when the lower jaw orthodontic brace is worn on the lower jaw teeth, the third stressed supporting surface and the fourth stressed supporting surface are perpendicular to the teeth direction.
Optionally, the first shell is located between the first molar region and the second premolar region of the upper orthodontic shell, and the second shell is located between the first molar region and the second premolar region of the lower orthodontic shell.
Optionally, the length direction of the first shell is parallel to the direction of an arch line at the position of the first shell on the upper jaw correcting tooth socket body, and the length direction of the second shell is parallel to the direction of an arch line at the position of the lower jaw correcting tooth socket body at the position of the second shell.
Optionally, during occlusion, the first force bearing surface is in contact with the third force bearing surface, and the second force bearing surface is in contact with the fourth force bearing surface.
Optionally, the maxillary corrective mouthpiece has a filling attachment having a shape conforming to the shape of the missing maxillary tooth.
Optionally, the mandibular orthodontic mouthpiece has a filling attachment that conforms in shape to the shape of the actual missing mandibular tooth.
Optionally, when the upper jaw orthodontic brace is worn on the upper jaw tooth and the lower jaw orthodontic brace is worn on the lower jaw tooth, the vertical distance between the highest point of the dental crest on the upper jaw dental crown and the lowest point of the occlusal surface of the lower jaw dental crown for forming the occlusion relation is 4-7 mm.
Optionally, the upper jaw correcting tooth socket body is a tooth socket body with a tooth correcting function; the upper jaw correcting tooth socket body is a tooth socket body with a tooth correcting function.
Optionally, the intersection of the upper jaw correcting facing and the lower jaw correcting facing limiting surface, the side surface and the supporting surface is an arc angle transition with an arc angle of R0.2' 0.5 mm.
According to the technical scheme, the embodiment of the application has the following advantages: in the occlusion process, the contact between the first shell and the second shell is the surface contact between the first sliding limiting surface and the second sliding limiting surface, the force exerted on the upper tooth socket and the lower tooth socket is dispersed by the surface contact, the stress is uniform, the pressure intensity is relatively even, the tooth sockets are not easy to deform, and the treatment is smoothly carried out.
Drawings
Fig. 1 is a schematic structural diagram of a muscle function appliance in an embodiment of the present application.
Fig. 2 is a schematic view of a second shell of the muscle function appliance in the embodiment of the application.
Fig. 3 is a schematic view of an upper jaw orthodontic brace of the muscle function appliance in the embodiment of the application.
Detailed Description
The embodiment of the application provides a muscle function appliance for treating Anshi II-type malocclusion, which has the function principle that for a mandible retroreduction malformation patient in a growth and development period, the position relation of an upper jaw and a lower jaw is changed to push the lower jaw to move forwards relative to a maxilla, so that the growth of condylar cartilage tissues and the reconstruction of a joint socket are stimulated, the lower jaw is enabled to grow forwards, the growth of the maxilla is inhibited through a reaction force, and a new stable neuromuscular position is formed by the lower jaw through a bite reconstruction method, so that the mandible of the patient is repositioned; has better correction effect for Anshi II malocclusion cases.
The existing muscle function appliance used for the type II cross jaw of an Andrews generally comprises an upper jaw correcting tooth socket and a lower jaw correcting tooth socket, wherein the upper jaw correcting tooth socket and the lower jaw correcting tooth socket are provided with a protrusion in a molar area, the protrusion is called as a functional accessory, when the upper jaw and the lower jaw form an occlusion relation, the functional accessory on the upper jaw correcting tooth socket is contacted with the functional accessory of the lower jaw correcting tooth socket, and the correcting force for preventing the lower jaw correcting tooth socket from moving far and far is generated. The mandible is pushed to move forwards through force transmission, so that the purpose of correction is achieved, and the functional accessory is a three-dimensional irregular curved surface body. Because the contact surface of the functional accessory is an irregular surface body, the contact condition of the actual accessory can have line contact, so that the whole stress of the accessory is uneven, and the pressure intensity of some areas is larger.
Referring to fig. 1, a specific structure of a muscle function appliance in the embodiment of the present application includes: an upper jaw orthodontic brace 101 and a lower jaw orthodontic brace 102.
The maxillary orthotic shell 101 includes a maxillary shell body 1011 and a first shell 1012.
First casing is located the molar district of upper jaw facing body, and protrusion in the outside of upper jaw facing body, and the outside here means when wearing on upper jaw tooth for upper jaw facing body, the inboard of upper jaw facing body and tooth contact side, and the molar district is when upper jaw facing body is worn on upper jaw tooth, the region that molar corresponds among the upper jaw tooth promptly.
The upper surface of the first housing 1012 includes a first force bearing surface 10121, a second force bearing surface 10122, and a first slide limit surface 10123.
The first force bearing surface 10121 is close to the throat side, the second force bearing surface 10122 is close to the incisor side, that is, when the maxillofacial orthodontic brace is worn on teeth, in ZOX coordinate system in which the human body facing direction is the positive direction of the X-axis with the human body height direction being the positive direction of the Z-axis, the X-coordinate value of the first force bearing surface 10121 is smaller than the X-coordinate value of the second force bearing surface 10122.
The protruding height of the first stressed supporting surface relative to the upper jaw orthodontic tooth socket body is higher than the protruding height of the second stressed supporting surface relative to the upper jaw orthodontic tooth socket body, namely when the upper jaw orthodontic tooth socket is worn on an upper jaw tooth, in an ZOX coordinate system taking the height direction of a human body as the positive direction of a Z axis and the facing direction of the human body as the positive direction of an X axis, the Z axis coordinate value of the first stressed supporting surface is smaller than that of the second stressed supporting surface.
The first sliding limiting surface is connected with the first stress supporting surface and the second stress supporting surface, and the sum of the length of the first stress supporting surface and the length of the second stress supporting surface is smaller than the length of the first shell. Namely, when the maxillofacial orthodontic brace is worn on teeth, in a ZOX coordinate system with the height direction of the human body as the positive direction of the Z axis and the facing direction of the human body as the positive direction of the X axis, the projection of the angle formed by the first stressed supporting surface and the first sliding limiting surface and the angle formed by the first stressed supporting surface and the second sliding limiting surface are always obtuse angles.
The mandibular orthodontic brace 102 includes a mandibular brace body 1021 and a second shell 1022.
The second shell is located in a molar area of the lower jaw mouthpiece body and protrudes out of the outer side of the lower jaw mouthpiece body, wherein the outer side refers to an inner side of a contact side of the lower jaw mouthpiece body and teeth when the lower jaw mouthpiece body is worn on the lower jaw teeth, and the molar area is an area corresponding to molar in the lower jaw teeth when the lower jaw mouthpiece body is worn on the lower jaw teeth.
The upper surface of the second housing 1022 includes a third force bearing surface 10221, a fourth force bearing surface 10222, and a second slide limiting surface 10223.
The third force receiving support surface 10221 is located closer to the throat side and the fourth force receiving support surface 10222 is located closer to the incisor side, that is, when the mandibular orthodontic brace is worn on a tooth, the X-coordinate value of the third force receiving support surface 10121 is smaller than the X-coordinate value of the fourth force receiving support surface 10122 in an ZOX coordinate system in which the human body facing direction is the positive X-axis direction with the human body height direction being the positive Z-axis direction.
The height of the third stressed supporting surface protruding relative to the lower jaw orthodontic tooth socket body is higher than the height of the fourth stressed supporting surface protruding relative to the lower jaw orthodontic tooth socket body, namely when the lower jaw orthodontic tooth socket is worn on lower jaw teeth, in an ZOX coordinate system taking the height direction of a human body as the positive direction of a Z axis and the facing direction of the human body as the positive direction of an X axis, the Z axis coordinate value of the first stressed supporting surface is smaller than that of the second stressed supporting surface.
The second sliding limiting surface is connected with the third stressed supporting surface and the fourth stressed supporting surface, and the sum of the length of the third stressed supporting surface and the length of the fourth stressed supporting surface is less than the length of the second shell; namely, when the mandibular teeth correcting brace is worn on the mandibular teeth, in a ZOX coordinate system in which the height direction of the human body is the positive direction of the Z axis and the facing direction of the human body is the positive direction of the X axis, the projection of the angles formed by the third force bearing surface and the second slide limit surface and the projection of the angles formed by the fourth force bearing surface and the second slide limit surface are always obtuse.
The first shell and the second shell have a correction distance in the occlusion process, namely after the muscle function corrector is worn, the occlusion mode can be reconstructed, specifically: in the occlusion process, the first sliding limiting surface always contacts with the second sliding limiting surface firstly, the sliding between the first sliding limiting surface and the second sliding limiting surface decomposes the biting force of the user into a force in the vertical direction and a force in the horizontal direction, and as the position of the maxillary teeth relative to the skull is relatively fixed, so that the force in the horizontal direction always acts on the muscle, ligament, fiber and other soft tissues of the lower jaw, and because the angle of the sliding limiting surface is limited, therefore, the force in the horizontal direction is always expressed as the force stretching the lower jaw forwards, and is mainly expressed as the contraction force of muscles, and the contraction force of the muscles is transmitted to soft and hard tissues such as teeth, tooth sockets, jaws and joints through the muscle function appliance. When the limiting surface of the upper jaw correcting tooth socket shell area is contacted with the limiting surface of the lower jaw correcting tooth socket shell area, the lower jaw of a patient is stretched, even if the patient is in a daily relaxed state or in a sleeping condition, the lower jaw can still be stretched and the position of the lower jaw is stable, so that the lower jaw continuously acts, the growth of condylar cartilage tissue and the reconstruction of a joint socket can be stimulated, the lower jaw grows forwards, the lower jaw forms a new stable neuromuscular position by a method of inhibiting the growth of the upper jaw through a reaction force and occlusal reconstruction, and the lower jaw of the patient is repositioned. The correction process is completed.
The first sliding limiting surface is attached to the second sliding limiting surface in the occlusion process, the first sliding limiting surface is always in contact with the second sliding limiting surface in the complete occlusion process and is in surface contact, the area of the surface contact is gradually increased along with the occlusion, the maximum value of the contact area is finally reached, the corresponding opening process is the gradual reduction of the contact area of the first sliding limiting surface and the second sliding limiting surface, and the complete non-contact is finally reached.
Referring to fig. 2, there are many strengthening ribs on the side of this flesh function appliance's second casing, add thick portion promptly as strengthening rib structure in fig. 2, it corresponds to it, first casing side also can have many strengthening ribs, the strengthening rib is outstanding the certain thickness of casing, the atress holding surface or the spacing face of upper surface is connected to one end rounding off, the other end passes through to the casing bottom or joins with other strengthening ribs, the direction of strengthening rib is perpendicular with the spacing face or the holding surface of the upper surface of being connected, the shell structure that the side has the strengthening rib can guarantee can bear 15 ~ 20KG pressure and do not take place to warp at the contact zone of casing, and can prolong the life of casing, also can not appear easily after the repetitious usage breaking, the condition of deformation.
Referring to fig. 1, when the upper jaw orthodontic brace is worn on an upper jaw tooth in the embodiment, the first stressed supporting surface and the second stressed supporting surface are perpendicular to the tooth direction, and when the lower jaw orthodontic brace is worn on a lower jaw tooth, the third stressed supporting surface and the fourth stressed supporting surface are perpendicular to the tooth direction, so that the angle problem of a horizontal plane does not need to be considered when the muscle function orthodontic brace is worn, and the muscle function orthodontic brace is simple to use.
In this embodiment, the first shell is located between the first molar region and the second premolar region of the upper jaw orthodontic brace, and the second shell is located between the first molar region and the second premolar region of the lower jaw orthodontic brace, so that the relationship between the shell and the brace body is more stable, and the overall strength of the muscle function orthodontic brace is improved.
In this embodiment, the first shell length direction is parallel to the direction of the dental arch line at the position of the first shell on the upper jaw correction mouthpiece body, the second shell length direction is parallel to the direction of the dental arch line at the position of the lower jaw correction mouthpiece body at the position of the second shell, namely, each shell is arranged according to the slope of the dental arch line at the position of each shell, the slope in the shell length direction is the same as the slope of the dental arch line at the position of each shell, the protrusion of the buccal side and the lingual side of the attachment can be reduced, and the muscle function appliance is more comfortable when worn.
In this embodiment, the muscle function appliance is worn on the teeth, and when completely occluded, the first stressed supporting surface is in contact with the third stressed supporting surface, and the second stressed supporting surface is in contact with the fourth stressed supporting surface, so that the pressure applied to the limiting surface can be uniformly dispersed to two supporting surfaces and one limiting surface, and the service life of the product is further prolonged.
Referring to fig. 1, in the present embodiment, the intersection of the limiting surface, the side surface, and the supporting surface is an arc angle with R0.2' 0.5mm, which does not cause stress concentration, so that the main structure of the accessory is more firm and reliable.
Referring to fig. 1, in the embodiment, the height difference distance between the first stressed supporting surface and the second stressed supporting surface is 2-5 mm, the widths of the first stressed supporting surface and the second stressed supporting surface are equal, the dimension is 4-7 mm, an acute angle formed by the stressed supporting surface and the sliding limiting surface is called an inclined angle α, and the inclined angle α ranges from 40 ° to 75 °.
In the practical use process, the situation that one or more teeth are lost before the correction of the patient may be met, in the embodiment of the application, the upper jaw correction tooth socket may be provided with the filling accessory, and the accessory corresponds to the standard tooth size structure corresponding to the lost position, so that the upper jaw tooth socket is stressed uniformly and has a firm structure. Likewise, the mandibular orthodontic braces may also have a filling attachment that corresponds to the standard tooth size configuration corresponding to the missing position so that the mandibular braces are uniformly stressed and structurally sound.
In the actual use process, the upper jaw orthodontic braces are worn on the upper jaw teeth, and when the lower jaw orthodontic braces are worn on the lower jaw teeth, the vertical distance between the highest point of the dental crest on the upper jaw dental crown and the lowest point of the occlusal surface nest of the lower jaw dental crown which enables the upper jaw dental crown to form an occlusion relation is 4-7 mm, so that the orthodontic appliance can be worn comfortably.
In the actual use process, the upper jaw orthodontic brace body can be a brace body with a tooth correcting function; the lower jaw correcting tooth socket body can be a tooth socket body with a tooth correcting function, and can adjust and control the three-dimensional direction of single upper and lower jaw teeth according to the arrangement condition of the teeth when correcting the mandibular advancement, for example, the upper and lower jaw front teeth are pressed down to push the upper and lower molars to move far and far, so that the dental cusp sockets of the upper and lower jaws are relatively accurate and widely contacted, and the occlusion relation of the teeth is normal.
The design and manufacturing process and the specific using process of the muscle function appliance are further described below.
Designing and manufacturing process
1. Obtaining a digital model of the upper jaw and the lower jaw of the patient to be corrected by a silicon rubber model taking mode and then a 3D scanning imaging mode, and determining the occlusion relation and the position of the upper jaw and the lower jaw of the patient.
2. The digital model after scanning is trimmed by using the reverse software Geomagic Studio, the trimmed digital model is ensured to be basically consistent with the pictures in the mouth, each tooth is completely separated according to the shape of the tooth, and the tooth is convenient to correct and design in the later period.
3. Designing a muscle function appliance parameterization model by using modeling software Pro/E, CREO and Solid Works, wherein the structural outline of the upper jaw orthodontic tooth socket of the muscle function appliance is integrally shown in figure 3; after the ware appearance is wholly confirmed in muscle function, use finite element analysis software ANSYS to correct the ware atress face at muscle function and evenly apply certain pressure, the situation is applyed to people's bite-force in the simulation real life to optimize overall dimension and strengthening rib and add shape and position, make the muscle function of post manufacture correct the ware and can bear 15 ~ 20KG pressure and do not warp in correcting the contact zone (being the casing region).
4. And determining a target position of the lower jaw relative to the front of the upper jaw according to the processed initial three-dimensional digital model of the patient, and adjusting the size of the shell according to the distance between the existing position and the target position.
5. The tooth model is manufactured through a 3D printing technology, the upper jaw of the teeth of the patient are manufactured through a vacuum hot-press forming technology and are structurally repositioned to correct the tooth socket, the lower jaw of the teeth are structurally repositioned to correct the tooth socket, the complete pair of muscle function correcting device comprises the upper jaw to correct the tooth socket and the lower jaw to correct the tooth socket, and the upper jaw and the lower jaw are used for correcting the mutual contact stress of the tooth socket and completing the function of the muscle function correcting device through force conduction.
In the clinical correction condition, the shapes, sizes or positions of teeth of patients are different, so that the shell is not only unchanged, the sizes of the first shell and the second shell are adjusted according to actual conditions in order to ensure that the muscle function appliance can apply enough correction force to the teeth of the patients when being worn and the structure of the muscle function appliance cannot be deformed or damaged, and the structural size of the shell can be fed back and adjusted from the five dimensions according to the actual sizes of the teeth, wherein the acute included angle (α) formed by the stress supporting surface and the sliding limiting surface of two stress supporting plane sections (H1), the total height value (L1) of the shell, the width value (L2) of the shell and the length value (L3) of the shell is an acute angle.
Second, specific application Process
Determining the target position of the lower jaw relative to the front of the upper jaw according to the processed three-dimensional digital model of the patient teeth and the relation between the upper jaw and the lower jaw, adding the muscle function appliance on the upper jaw teeth and the lower jaw teeth according to a certain rule, and determining the occlusion opening amount of the patient by combining the height of the shell and the interference condition of the upper jaw teeth and the lower jaw teeth. The total amount of mandibular advancement and occlusion opening is 8-10 mm, and the occlusion opening amount is reduced when the lower jaw is more advanced; otherwise, the bite opening amount is appropriately increased.
In the correction process, according to the relative distance between a certain specific position of the lower jaw and a certain specific position of the upper jaw, and by combining reasonable biological correction force, the specific position of the muscle function corrector on the teeth of the lower jaw is changed in multiple steps, the front guiding distance of the lower jaw is about 0.09-0.24 mm in each step, so that the lower jaw is moved forward to a target position from an initial position step by step, and in the period, a pair of muscle function correctors in corresponding stages need to be manufactured in each step, so that the complete correction process should comprise multiple pairs of muscle function correctors. It should be noted that, the lower jaw initial position is led to the target position, the correction is completed in multiple steps, and if the correction speed is too fast, that is, the leading distance in a single step is too large, muscle damage to the face of the patient is easily caused, the condylar cartilage tissue is absorbed, and the correction fails.
In determining the correction offset, if the muscle function appliance is placed along the dental arch, the movement amount of the shell in occlusion is not equal to the correction offset, which is different from the two concepts, the correction offset is usually the linear movement amount of the mandible in the middle line direction of the dental arch, and the movement amount of the shell is the movement amount along the curve of the dental arch, and the conversion relationship between the two can be approximated as LB to LA/COS α (assuming that the movement of the shell at a certain time is the a direction which is tangential to the curve of the dental arch at a certain point of the dental arch, and the correction offset is the B direction which is moved towards the middle line of the dental arch), for example, the correction offset is determined as 0.2mm per month, and the movement direction a of the shell at this time is 20 ° from the middle line of the dental arch, and the offset should be 0.2/COS20 ° to 0.213 mm.
Claims (10)
1. A muscle function appliance, comprising: an upper jaw orthodontic brace and a lower jaw orthodontic brace;
the upper jaw orthodontic braces are used for receiving upper jaw teeth to be corrected, and the lower jaw orthodontic braces are used for receiving lower jaw teeth to be corrected;
the upper jaw orthodontic brace comprises an upper jaw orthodontic brace body and a first shell positioned in a molar area of the upper jaw orthodontic brace body; wherein the first shell is distributed in a left-right corresponding manner relative to a median sagittal plane of the upper jaw orthodontic braces; the upper surface of the first shell comprises a first stress supporting surface, a second stress supporting surface and a first sliding limiting surface; the first force-bearing limiting surface is close to the throat side, the second force-bearing supporting surface is close to the incisor side, and the first sliding limiting surface is connected with the first force-bearing supporting surface and the second force-bearing supporting surface; the height of the first stressed supporting surface relative to the upper jaw orthodontic tooth socket body is higher than the height of the second stressed supporting surface relative to the upper jaw orthodontic tooth socket body, and the sum of the length of the first stressed supporting surface and the length of the second stressed supporting surface is smaller than the length of the first shell;
the lower jaw orthodontic brace comprises a lower jaw orthodontic brace body and a second shell positioned in a molar area of the lower jaw orthodontic brace body; wherein the second shell is distributed in a left-right correspondence with respect to a median sagittal plane of the mandibular orthodontic mouthpiece; the upper surface of the second shell comprises a third stressed supporting surface, a fourth stressed supporting surface and a second sliding limiting surface, wherein the third stressed limiting surface is close to the throat side, the fourth stressed supporting surface is close to the incisor side, the second sliding limiting surface is connected with the third stressed supporting surface and the fourth stressed supporting surface, the height of the third stressed supporting surface protruding relative to the mandibular orthodontic tooth socket body is lower than the height of the fourth stressed supporting surface protruding relative to the mandibular orthodontic tooth socket body, and the sum of the length of the first stressed supporting surface and the length of the second stressed supporting surface is smaller than the length of the first shell;
a correcting distance is reserved between the first shell and the second shell in the occlusion process;
and the first sliding limiting surface is attached to the second sliding limiting surface in the occlusion process.
2. The myofunctional appliance of claim 1, wherein the first shell has a plurality of reinforcing ribs on a side surface thereof, and the reinforcing ribs of the first shell are perpendicular to the first force-bearing support surface, the second force-bearing support surface and the first sliding limiting surface, respectively; the side surface of the second shell is provided with a plurality of reinforcing ribs, and the reinforcing ribs of the second shell are respectively perpendicular to the third stress supporting surface, the fourth stress supporting surface and the second sliding limiting surface.
3. The muscle function appliance according to claim 1 or 2, wherein the first and second force-bearing support surfaces are perpendicular to the upper teeth when the upper jaw orthodontic brace is worn on the upper teeth, and the third and fourth force-bearing support surfaces are perpendicular to the lower teeth when the lower jaw orthodontic brace is worn on the lower teeth.
4. The myofunctional appliance of claim 1 or claim 2, wherein the first shell is located between the first and second premolar regions of the maxillary correction mouthpiece and the second shell is located between the first and second premolar regions of the mandibular correction mouthpiece.
5. The myofunctional appliance of claim 1 or 2, wherein the first shell has a length direction parallel to the direction of the arch line at the position of the first shell on the upper jaw corrective mouthpiece body and the second shell has a length direction parallel to the direction of the arch line at the position of the lower jaw corrective mouthpiece body.
6. The muscle function appliance of claim 1 or claim 2, wherein the first force bearing surface is in contact with the third force bearing surface and the second force bearing surface is in contact with the fourth force bearing surface when occluded.
7. The myofunctional appliance of claim 1 or claim 2, wherein the maxillary dental mouthpiece has a filling attachment which conforms in shape to the missing maxillary tooth.
8. The myofunctional appliance of claim 1 or claim 2, wherein the mandibular appliance shell has a filling attachment that conforms in shape to the missing teeth of the missing mandibular teeth.
9. The muscle function appliance according to claim 1 or 2, wherein when the maxillary dental mouthpiece is worn on the maxillary tooth and the mandibular dental mouthpiece is worn on the mandibular tooth, the vertical distance between the highest point of the dental crests on the maxillary dental crown and the lowest point of the occlusal socket of the mandibular dental crown, which causes the maxillary dental crown to form the occlusal relationship, is 4 to 7 mm.
10. The muscle function appliance according to claim 1 or 2, wherein the upper jaw appliance shell body is a shell body having a dental correction function; the lower jaw orthodontic brace body is a brace body with a tooth correcting function.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921532910.9U CN210903426U (en) | 2019-09-16 | 2019-09-16 | Muscle function appliance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921532910.9U CN210903426U (en) | 2019-09-16 | 2019-09-16 | Muscle function appliance |
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| CN210903426U true CN210903426U (en) | 2020-07-03 |
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| CN201921532910.9U Active CN210903426U (en) | 2019-09-16 | 2019-09-16 | Muscle function appliance |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114889103A (en) * | 2022-03-22 | 2022-08-12 | 重庆医科大学附属第二医院 | Manufacturing method of invisible flat inclined plane orthodontic guide plate |
| TWI820560B (en) * | 2021-03-08 | 2023-11-01 | 臺北醫學大學 | Manufacture method of dental appliance for treating obstructive sleep apnea-hypopnea syndrome |
| WO2023231904A1 (en) * | 2022-06-02 | 2023-12-07 | 正雅齿科科技(上海)有限公司 | Dental instrument and orthodontic system |
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2019
- 2019-09-16 CN CN201921532910.9U patent/CN210903426U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI820560B (en) * | 2021-03-08 | 2023-11-01 | 臺北醫學大學 | Manufacture method of dental appliance for treating obstructive sleep apnea-hypopnea syndrome |
| CN114889103A (en) * | 2022-03-22 | 2022-08-12 | 重庆医科大学附属第二医院 | Manufacturing method of invisible flat inclined plane orthodontic guide plate |
| WO2023231904A1 (en) * | 2022-06-02 | 2023-12-07 | 正雅齿科科技(上海)有限公司 | Dental instrument and orthodontic system |
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