CN115531017A - Preparation method of complete denture with personalized base polishing surface and neutral region tooth arrangement - Google Patents
Preparation method of complete denture with personalized base polishing surface and neutral region tooth arrangement Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/01—Palates or other bases or supports for the artificial teeth; Making same
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/0003—Making bridge-work, inlays, implants or the like
- A61C13/0004—Computer-assisted sizing or machining of dental prostheses
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/0003—Making bridge-work, inlays, implants or the like
- A61C13/0006—Production methods
- A61C13/0019—Production methods using three dimensional printing
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/08—Artificial teeth; Making same
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C9/00—Impression cups, i.e. impression trays; Impression methods
- A61C9/004—Means or methods for taking digitized impressions
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Abstract
The invention discloses a preparation method of a complete denture with an individualized base polishing surface and a neutral region tooth arrangement, and belongs to the technical field of denture preparation. The method comprises the following steps: preparing an upper jaw fine impression and a lower jaw fine impression by adopting polyether silicon rubber, placing the upper jaw fine impression in the mouth of a patient, carrying out shaping of an upper jaw buccal polishing surface on the upper jaw fine impression, then enabling the patient to carry out swallowing action, enabling the tongue to form an upper jaw supporting and palate polishing surface shape, and shaping a neutral zone of a maxillary dentition to be discharged; obtaining a jaw relation impression of a patient through a jaw relation recording device; scanning the upper jaw fine impression, the lower jaw fine impression and the jaw relation impression, matching to obtain a digital fine impression, virtually arranging teeth in a neutral area of the digital fine impression, and then performing 3D printing and glue filling injection molding. The method can greatly save the time for manufacturing the personalized polished surface by the traditional manual mode, reduce the manpower and improve the manufacturing accuracy.
Description
Technical Field
The invention belongs to the technical field of denture preparation, and particularly relates to a preparation method of a complete denture with an individualized base polishing surface and a neutral region tooth arrangement.
Background
Dentures made for patients with dentition loss are called complete dentures. Stabilization of a complete denture is affected by the peripheral neuromuscular system within the oral cavity. Oral functions such as speaking, chewing, swallowing, smiling and laughing are commonly participated by the muscles of the tongue, lips, cheeks and floor of the mouth, a process that is very complex and personalized. For patients wearing complete dentures, neuromuscular control is critical to denture stability. Fish first proposed the concept of the neutral zone of a complete denture in 1993, defined as the potential gap around the denture between the lips, cheeks, and tongue muscles. In the neutral zone, the forces of the buccinator or labyrinthic muscles and the tongue muscles are theoretically balanced. And the surface of the complete denture contacting with the labial, buccal and lingual muscles is a denture polishing surface.
Research shows that artificial teeth with proper shape and size are selected and arranged in the neutral zone, and simultaneously, the polished surface shape is matched with the neutral zone, so that the forces of lip, cheek and tongue muscles can be balanced, which is beneficial to the retention and the stability of complete denture, and is more significant especially for the case of serious absorption of the alveolar ridge. The polished surface also reduces food accumulation and helps the buccal muscles push food onto the occlusal surface, making the chewing process easier. Therefore, the production of a personalized polished surface is very important. Nevertheless, most dentists pay less attention to the texture and occlusal surfaces of complete dentures. This is because most dentists hand them with technicians, but not personalize, because making a personalized polished surface requires additional impressions and the craftsman's office flow is complex.
The existing method for manufacturing the personalized polished surface comprises the following steps: the method comprises the steps of forming a polished surface of a wax occlusal embankment by using a tissue indicator through edge plastic finishing to form a position indicator of a neutral zone tooth arrangement, and manufacturing a tooth arrangement guide plate according to the position indicator to guide artificial teeth to be arranged in the neutral zone; filling glue, finishing the denture, placing self-setting resin on the finished denture base polishing surface, ordering a patient to finish the edge finishing action, forming a personalized polishing surface, and finally polishing the finished denture. And secondly, manufacturing a special constant substrate (figure 1 a), forming a personalized polished surface and a neutral zone tooth arrangement instruction (figures 1b and c) in the mouth by using a silicon rubber material on the constant substrate, manufacturing a tooth arrangement guide plate, replacing the silicon rubber with wax (figure d) by using the guide plate, forming a wax combined embankment (figure e) with the personalized polished surface and the neutral zone tooth arrangement position instruction, arranging artificial teeth on the indicated neutral zone tooth arrangement position, and finally completing the complete denture (figure f) with the personalized polished surface and the neutral zone tooth arrangement by using the traditional glue filling.
According to the method, after the position guide of the personalized polished surface and the neutral zone arranged teeth is obtained through the tissue indicator or the silicon rubber, the copying and the manufacturing of the personalized polished surface and the arrangement of the artificial teeth are carried out in a traditional manual mode. The traditional manual manufacturing method has the characteristics of time and labor waste and inaccuracy. Complete denture repairs often fail to achieve ideal retention and stability for edentulous occlusal patients, particularly those with severe alveolar ridge absorption. In view of this, the present application is specifically proposed.
Disclosure of Invention
The invention aims to provide a preparation method of a complete denture with an individualized base polishing surface and neutral zone tooth arrangement.
The invention is realized by the following technical scheme:
in a first aspect, the present invention provides a method for preparing a complete denture having a personalized base polishing surface and a neutral range of arranged teeth, comprising:
preparing an upper jaw fine impression and a lower jaw fine impression by adopting polyether silicon rubber, placing the upper jaw fine impression in the mouth of a patient, carrying out shaping of an upper jaw buccal polishing surface on the upper jaw fine impression, then enabling the patient to carry out swallowing action, enabling the tongue to form an upper jaw supporting and palate polishing surface shape, and shaping a neutral zone of a maxillary dentition to be discharged;
obtaining the jaw position relation of the patient through a jaw position relation recording device;
scanning the upper jaw fine impression, the lower jaw fine impression and the jaw position relation, matching to obtain a digital fine impression with the jaw position relation, and virtually arranging teeth in a neutral area of the digital fine impression to obtain a digital diagnosis denture; the diagnostic denture is then 3D printed, tried on and finally denture gel injected.
Further, in a preferred embodiment of the present invention, the step of obtaining the jaw relation of the patient includes:
the maxilla relation recording device is firstly utilized to prepare the maxilla impression, the maxilla impression is reset in the mouth of a patient, silicon rubber is placed on the edentulous alveolar ridge of the lower jaw, and the patient is ordered to bite to a proper vertical distance and a proper horizontal relation through a posterior occlusal method, so that the maxilla relation of the patient is obtained.
Further, in a preferred embodiment of the present invention, before the step of taking the upper and lower jaw fine impressions, the method further comprises:
preparing an upper jaw primary impression mold and a lower jaw primary impression mold by using intermediate silicone rubber, scanning and printing to obtain an upper jaw open type primary mold tray and a lower jaw open type primary mold tray, and finishing edge plastic shaping by using the trays.
Further, in a preferred embodiment of the present invention, the method for preparing the upper jaw open type blank mold tray and the lower jaw open type blank mold tray comprises:
scanning the upper jaw initial impression and the lower jaw initial impression, acquiring a digital initial impression, designing a digital upper jaw open type initial impression tray and a digital lower jaw open type initial impression tray, and performing 3D printing by adopting a polylactic acid material.
Further, in a preferred embodiment of the present invention, the upper jaw open type preliminary mold tray and the lower jaw open type preliminary mold tray are edge-molded by edge-molding wax.
Further, in a preferred embodiment of the present invention, the upper and lower jaw digital fine impressions with jaw relation are obtained after the upper and lower jaw fine impressions, the lower jaw fine impression and the jaw relation impression are scanned and matched; and then performing neutral zone virtual tooth arrangement on the digital fine impression.
Further, in a preferred embodiment of the present invention, after the neutral zone virtual tooth arrangement is performed on the digitized fine impression, 3D printing for diagnosing the denture is performed using the polylactic acid material.
Further, in a preferred embodiment of the present invention, the method further comprises: trying on the false tooth after 3D printing, polishing and shaping the surface again by using a light silicone rubber material, checking whether a place interfering muscle movement exists or not, and polishing.
Further, in a preferred embodiment of the present invention, the method further comprises: and determining jaw relation by using occlusion recording silicone rubber, and manufacturing the complete denture by adopting an injection molding and filling method and a traditional tooth arrangement method.
Compared with the prior art, the invention at least has the following technical effects:
according to the preparation method of the complete denture with the personalized base polishing surface and the neutral region arranged teeth, provided by the invention, when a toothless occlusal fine impression is obtained, personalized polishing surface shape and neutral region arranged teeth position guide of a patient are obtained through polyether silicon rubber plastic forming, then a digitized fine impression with the personalized polishing surface and the neutral region arranged teeth position guide is obtained through scanning, the digitized fine impression is matched with the obtained digitized jaw relation, then the digitized artificial teeth are directly arranged on the digitized fine impression with the personalized polishing surface and the neutral region arranged teeth position guide, 3D printing diagnosis is carried out, and finally the complete denture is manufactured through filling glue and injection molding.
In the whole process, the personalized polished surface form is copied in a digital mode, teeth are directly arranged in a neutral area in a virtual mode, and the false teeth are diagnosed through 3D printing to try on and adjust the false teeth.
Compared with the traditional mode, the method has the following advantages:
(1) Manpower, material resources and time are greatly saved: in the traditional way, even a technician with very skilled operation needs about one hour to arrange teeth and make wax patterns; through the digitalization mode of the application, the proper dentition can be matched in a few minutes and the matching is completed through a 3D printing mode, so that the labor is greatly reduced, and the time is saved.
(2) The accuracy of the preparation of the personalized polished surface is improved: since the form of the polished surface is embodied by wax in a conventional manner after the personalized polished surface of the patient is obtained by the material, in the process of replacing the diagnostic wax pattern, although the guide plate is arranged, the form of the polished surface cannot be accurately copied due to the shrinkage of the wax, and the process is labor-consuming and time-consuming. Through the digital mode of the application, the designed digital diagnosis denture with the personalized polishing surface can be directly manufactured through a 3D printing mode, the accuracy is improved, and the manpower is saved.
Drawings
FIG. 1 is a schematic representation of a prior art method of preparing a full denture having a personalized polished surface and a neutral zone for tooth alignment;
FIG. 2 is a schematic view of an edentulous occlusion of a patient in step (1) of the example: (1) showing maxillary edentulous occlusal space; (2) the lower jaw is not occlusal, so that the absorption of the alveolar bone of the lower jaw is very serious;
fig. 3 is a schematic diagram of the example of making upper and lower jaw initial impressions in step (2): (1) showing the prepared maxillary edentulous dentition initial impression; (2) showing a lower jaw edentulous dentition initial impression;
fig. 4 shows digitized upper and lower jaw open type primary mold trays in step (3) of the embodiment: (1) STL files showing open individual trays for scanning of maxillary initial impression designs; (2) STL files showing open individual trays for scanning mandibular initial impression designs;
fig. 5 is a schematic view of the upper and lower jaw open type blank mold tray in the embodiment step (3): (1) showing the printed upper jaw open type individual tray; (2) showing the printed lower jaw open type individual tray;
fig. 6 shows edge shaping of individual trays with open upper and lower jaws in step (4) of the example: (1) showing the edge of the printed maxillary open individual tray row as a plastic (shown by arrows); (2) the printed lower jaw open individual tray row edge is shown as a plastic (arrow shown);
FIG. 7 is a maxillary fine impression maxillary buccal polishing surface sculpting performed in example step (5): (1) showing a fine maxillary impression prepared from polyether silicone rubber; (2) and (3) making the upper jaw fine impression, simultaneously making the patient pucker the mouth and smile, and making the doctor horizontally massage the cheek parts at both sides to form the personalized polishing surface at both cheek sides;
FIG. 8 is a fine impression of the mandible made in step (5) of the example using a polyether silicone rubber;
fig. 9 shows an embodiment in step (6), a swallowing action is performed by the patient, so that the tongue is in contact with the palate, the shape of the palate is integrally molded, and a personalized palate shape beneficial to the pronunciation of the patient is formed: (1) the posterior half of the palate was sculpted by swallowing segments (arrow shown); (2) showing the shape of the anterior half of the palate through the plastic swallowing (arrows) while the neutral zone position guidance of the tooth row formed by the plastic muscular function (arrows) can be seen; (3) the shape of the labial area before complete plastic shaping is shown by the patients 'pout and smile' (arrow is shown);
fig. 10 is the personalized polished surface morphology and neutral zone tooth arrangement position guidance for mandibular muscle function plastic in example step (6): (1) the patient slightly bites fingers of the doctor placed in the posterior dental area of the patient, pucks the mouth, swings the tongue left and right, stretches the tongue, licks the handle (not extending out of the mouth), swallows saliva and slightly massages the cheek of the doctor horizontally and gently to shape the mandibular lingual side and the posterior buccal area (shown by arrows); (2) the shape of the lower jaw lip side area is shaped by the doctor horizontally massaging the lip of the patient (shown by an arrow); (3) the integrally molded lower jaw is shown, and a personalized polished surface form (shown by an arrow) can be formed; and neutral zone tooth placement guidance (arrow shown);
FIG. 11 shows the jaw position relation obtained in step (7) of the embodiment: (1) a special device for showing and preparing jaw position relation, namely a device similar to a occlusal dike is arranged on the combined face of the traditional upper jaw tray, and a plurality of position-fixing inverted concavities are arranged on the device; (2) the special device for obtaining the jaw relation is used for preparing the upper jaw impression, then the height of the similar occlusal embankment device is adjusted to be close to the vertical distance of a patient, then the upper jaw impression is reset to be in the mouth, a plurality of silicon rubber heavy materials are placed on the lower jaw edentulous occlusal alveolar ridge, the patient bites to the proper vertical distance and horizontal relation, and finally the jaw relation is finally confirmed by using a light body; (3) showing the lateral view of the obtained jaw position relation, and showing the prepared maxillary impression by an arrow; (4) showing the acquired partial mandibular edentulous dental impression (arrow);
FIG. 12 is a drawing illustrating that the STL file of the upper and lower jaw fine impressions obtained in step (8) is matched with the STL file of the jaw relation obtained by a special device through the upper jaw impression and the edentulous alveolar ridge of the lower jaw part to finally obtain the upper and lower jaw fine impressions with jaw relation;
fig. 13 shows the virtual tooth arrangement performed at the position of the neutral zone directly on the fine maxillary and mandibular impressions in the jaw position relationship in example step (8): (1) show neutral zone virtual volleyball right buccal view (arrow shown); (2) showing a neutral zone virtual tooth arrangement frontal view (shown by an arrow); (3) the neutral zone is shown in a virtual volleyball left buccal view (arrow).
Fig. 14 is a view showing an example of manufacturing a diagnosis denture of upper and lower jaws by 3D printing using PLA (polylactic acid material) in step (9), wherein arrows in (1), (2) and (3) show that the diagnosis denture completely reproduces the manufactured personalized polished surface and artificial teeth arranged in a neutral zone;
fig. 15 shows that the diagnostic denture is tried on in the mouth of the patient in the step (9) of the embodiment, the denture is good in occlusion, good in vertical distance and horizontal relation, stable in retention, clear in pronunciation of the patient, harmonious in dentition of the diagnostic denture and surrounding soft tissues, good in aesthetic property and quite satisfactory for the patient. (1) Showing the right side view of the denture for diagnosis; (2) showing the front view of the false tooth; (3) showing the left side view of the denture for diagnosis;
fig. 16 is a view showing the steps of example (10) in which light silicone rubber is placed on the polishing surface of the maxillary denture, the patient is ordered to perform functional movement, and the polishing surface of the maxillary denture is found to be entirely covered with light without exposure, showing that the form of the polishing surface of the maxillary denture does not interfere with muscular movement and has a harmonious relationship with the surrounding tissues; the mandibular denture polishing surface was partially exposed with no light body covering indicating that the morphology of these areas of the mandibular denture polishing surface interfered with muscle movements, and these exposed areas were polished and examined repeatedly with light body silicone rubber until no polishing surface was exposed. (1) Showing the right side view of the upper jaw; (2) showing the frontal view of the upper jaw; (3) show the left side view of the upper jaw. (4) Showing the view of the lower jaw occlusal surface; (5) showing the left view of the lower jaw lingual side; (6) showing the view of the lower jaw on the right side of the tongue;
fig. 17 shows that the precision of PLA (polylactic acid material) is not particularly high in step (11) of the example, so that the adjusted tissue surface of the diagnostic denture is re-lined with light silicone rubber to improve the precision of the tissue surface of the diagnostic denture;
FIG. 18 is a final record of the occlusion made in step (11) of the example using an occlusion recording silicone rubber material;
fig. 19 is a complete denture of the upper and lower jaws completed by injection molding by filling with glue in step (12) of the embodiment, (1) shows a completed maxillary denture, and red arrows show a maxillo-palatal form integrally molded by pronunciation; (2) (3) (4) show that the final denture completely replicates the polished surface morphology formed on the final impression and the upper and lower jaw dentitions arranged in the neutral zone (arrows). (5) The finished mandibular denture is shown and the arrows show the final formed mandibular polished surface morphology.
Detailed Description
Embodiments of the present invention will be described in detail with reference to the following examples, but it will be understood by those skilled in the art that the following examples are merely illustrative of the present invention and should not be construed as limiting the scope of the present invention, and that the specific conditions not specified in the examples are conducted under conventional conditions or conditions suggested by the manufacturer, and that reagents or equipment not specified by the manufacturer are all conventional products which can be obtained by commercial purchase.
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Examples
The embodiment provides a preparation method of a complete denture with a personalized base polishing surface and neutral region tooth arrangement, which comprises the following steps:
(1) After the patient is in a doctor, the patient is subjected to intraoral examination, and the patient is found to have missing upper dentition and lower dentition, good wound healing of tooth extraction, light absorption of maxillary alveolar ridge, moderate tissue amount of mandibular-lingual sublingual gland on the lingual side, tougher alveolar mucosa, no obvious soft alveolar ridge and bone tip bony spur and no obvious abnormality in the rest are found, as shown in fig. 2.
(2) Upper and lower jaw primary impressions were made by mechanically mixing medium silicone rubber (VPS, 3M), as shown in fig. 3.
(3) The digitized premold impression was obtained by scanning (D900, 3 Shape) the upper and lower jaw premold impressions, using their designs (Sviva FD Designer, shape Hoteamsoft) the upper and lower jaw open premold trays (as shown in fig. 4), and 3D printing (lingong II, beijing Sinotech) completed the fabrication of polylactic acid material (PLA) upper and lower jaw open premold trays (as shown in fig. 5).
(4) Edge finishing was done using printed upper and lower jaw open individual trays and edge finishing wax (Peri Compound, GC Australia) (as shown in fig. 6).
(5) The upper and lower jaw fine impressions were prepared using polyether silicone rubber (3M), and the upper jaw fine impression was simultaneously subjected to maxillary buccal polishing surface preparation (as shown in fig. 7 and 8).
(6) The patient is then swallowed, and the tongue is shaped to provide a maxillo-palatal side polishing surface and to form a neutral zone intended for maxillary dentition (see fig. 9 and 10).
(7) Through the device of jaw position relation record, preparation of upper jaw impression in advance, then reset in the mouth, place silicon rubber impression material (light and medium body impragnum, 3M) on the edentulous alveolar ridge, the order patient bites to suitable vertical distance and horizontal relation through the back occlusion method to obtain patient's jaw position relation, as shown in fig. 11. The jaw position relation is obtained in the mode, and because the lower jaw does not have a traditional constant base plate and a bite embankment, the lower jaw is not easy to be induced to extend forwards when the jaw position relation is obtained, and the median jaw position relation of a patient is more easily obtained.
(8) The upper and lower jaw fine impressions and jaw relation impressions were scanned (D900, 3 Shape) and matched (Geomagic Wrap,3D Systems) to obtain digitized fine impressions (STL files) of the upper and lower jaw fine impressions with jaw relation, as shown in fig. 12. And performs virtual tooth arrangement (Sviva FD Designer, shandong Hoteamsoft) of the neutral zone on this STL file as shown in fig. 13.
(9) The diagnostic dentures were printed (as shown in fig. 14) and tried on (as shown in fig. 15) with polylactic acid material (PLA) by means of 3D printing (lington II, beijing Sinotech).
(10) In the patient's closed state, the polished surface is made plastic again with light silicone rubber material (3M), checking if there is any place interfering with muscle movement, and then performing secondary check on the ground area until the light is uniformly distributed on the polished surface (as shown in fig. 16).
(11) Since the polylactic acid material was not very accurate, the tissue surface was re-lined with a light silicone rubber material (as shown in fig. 17), and the Bite relationship was recorded with a Bite recording silicone rubber (O-Bite, DMG) (as shown in fig. 18).
(12) The final denture is manufactured and tried on by injection molding and glue filling and a traditional tooth arrangement method (as shown in figure 19), and the patient has clear pronunciation and satisfactory functions.
Finally, it should be noted that: the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A method for preparing a complete denture with a personalized base polishing surface and neutral zone tooth arrangement is characterized by comprising the following steps:
preparing an upper jaw fine impression and a lower jaw fine impression by adopting polyether silicon rubber, placing the upper jaw fine impression in the mouth of a patient, carrying out shaping of an upper jaw buccal side polishing surface on the upper jaw fine impression, then enabling the patient to carry out swallowing action, enabling the tongue to form an upper jaw and palate side polishing surface shape, and forming a neutral zone which is to be discharged of an upper jaw dentition;
obtaining the jaw position relation of the patient through a jaw position relation recording device;
scanning the upper jaw fine impression, the lower jaw fine impression and the jaw position relation, matching to obtain a digital fine impression with the jaw position relation, and virtually arranging teeth in a neutral area of the digital fine impression to obtain a digital diagnosis denture;
3D printing of the diagnostic denture, try-on and gel-filled injection molding of the final denture were then performed.
2. The method of preparing a complete denture having a personalized base polishing surface and neutral zone dentitions according to claim 1, wherein the step of obtaining said jaw relation impression of the patient comprises:
utilize earlier the jaw position relation recorder prepares the upper jaw impression, will again the upper jaw impression resets in patient's mouth, places silicon rubber on the no occlusal alveolar ridge of lower jaw, and the order patient bites to suitable vertical distance and horizontal relation through the back teeth bite method to acquire patient's jaw position relation.
3. The method for preparing a complete denture having a personalized base polishing surface and a neutral zone for teeth alignment as claimed in claim 1, further comprising, before the step of making said fine upper and lower jaw impressions, the steps of:
preparing an upper jaw initial impression mold and a lower jaw initial impression mold by using medium silicone rubber, scanning and printing to obtain an upper jaw opening type initial mold tray and a lower jaw opening type initial mold tray, and finishing edge shaping by using the trays.
4. The method for preparing a complete denture having a personalized base polishing surface and neutral zone dentures according to claim 3, wherein the method for preparing the upper jaw open type primary model tray and the lower jaw open type primary model tray comprises:
scanning the upper jaw initial impression and the lower jaw initial impression, acquiring a digital initial impression, designing a digital upper and lower jaw opening type initial impression tray, and performing 3D printing by adopting a polylactic acid material.
5. The method of making a full denture having a personalized base polishing surface and neutral zone dentures according to claim 4, wherein the upper jaw open type primary mold tray and the lower jaw open type primary mold tray are edge-molded by edge-molding wax.
6. The method for preparing a complete denture with a personalized base polishing surface and a neutral zone for tooth arrangement according to claim 1, wherein the digital fine impression of the upper and lower jaws with jaw position relationship is obtained after the upper jaw fine impression, the lower jaw fine impression and the jaw position relationship are scanned and matched; and then performing neutral zone virtual tooth arrangement on the digital fine impression.
7. The method of claim 6, wherein the 3D printing of the diagnostic denture is performed using a polylactic acid material after the neutral zone virtual tooth arrangement is performed on the digital fine impression.
8. The method for preparing a complete denture having a personalized base polishing surface and a neutral zone dentition according to claim 7, further comprising: trying on the diagnosis false tooth after 3D printing, polishing and shaping the surface again by using a light silicone rubber material, checking whether a place interfering muscle movement exists, and polishing.
9. The method of manufacturing a complete denture having a personalized base polishing surface and a neutral range of teeth according to claim 8, further comprising: and determining jaw relation by using occlusion recording silicone rubber, and manufacturing the complete denture by adopting an injection molding and filling method and a traditional tooth arrangement method.
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