CN219921246U - Personalized dental occlusion support - Google Patents

Abstract

The utility model discloses a personalized dental occlusion tray, which aims to solve the problems of low die taking accuracy and complex jaw relation recording flow of a traditional individual tray. The personalized dental occlusion tray comprises an individual upper and lower jaw tray, a first surface sheet and a second surface sheet; the first panel is matched with the middle area of the tissue surface of the palate fornix area of the individual tray of the upper jaw, and the second panel is matched with the tissue surface of the two-sided mandibular posterior dental area of the individual tray of the lower jaw. The tissue surface of the individual tray is provided with the conveniently detachable impression terminator for accurately preparing the toothless final impression; and a dental abutment is arranged above the tray and used for maintaining the vertical distance of a patient and being suitable for a mandibular movement recording and analyzing system to acquire and record the horizontal jaw position relation, the device can simplify the clinical process and reduce the experience dependence and technical sensitivity of the toothless jaw repair.

Description

Personalized dental occlusion support

Technical Field

The utility model relates to a complete denture restoration technology, in particular to a personalized dental occlusion bracket which is mainly used for obtaining an accurate impression and determining a jaw position relation of a toothless jaw.

Background

The dentognathic is a common and frequently occurring disease of oral restoration; along with the progress of the aging society in China, more and more toothless patients will appear.

At present, the mucosa supported complete denture is still a main restoration mode of the toothless jaw. However, the traditional complete denture restoration has complex clinical procedures and high technical sensitivity, and patients need to visit the dentures for multiple times from initial diagnosis to final denture wearing, thus bringing great inconvenience to patients, particularly aged patients.

The digital technology brings more possibility for complete denture restoration, and the digital technology is applied to the traditional flow, thereby being beneficial to simplifying the experience dependence of clinical operation, reducing the times of patient treatment and improving the restoration precision.

The accurate toothless jaw impression is the key for ensuring good retention and stability of the complete denture, and is the first step for ensuring the treatment effect.

Traditional toothless jaw impressions are generally obtained by a two-step method, namely, an initial impression is prepared by using a finished product tray, and a plaster model is copied; edge lines are then drawn on the plaster model and individual trays that exactly match the facial tissue of the dentognathic tissue are hand-made on the plaster model using a photo-cured resin sheet for making a more accurate dentognathic impression.

However, the operation procedure of manually manufacturing individual trays is complex, and the thickness and the edge extension degree of the trays are difficult to standardize; when the individual tray is used for preparing the final impression, the thickness of the tray tissue surface impression material cannot be ensured to be uniform because the pressure applied to the tray cannot be accurately controlled; at the same time, the mucosa of a partial region may be deformed by excessive force, thereby reducing the accuracy of the impression and affecting the accuracy of the complete denture.

Disclosure of Invention

In response to the shortcomings or drawbacks of the prior art, the present utility model provides a personalized dental occlusion tray.

To this end, the personalized dental tray provided by the utility model comprises an individual tray for upper and lower jaws, a first face piece and a second face piece;

the first panel is matched with the middle area of the tissue surface of the palate fornix area of the individual tray of the upper jaw, and the second panel is matched with the tissue surface of the two-sided mandibular posterior dental area of the individual tray of the lower jaw.

Alternatively, the first surface sheet is connected with the tissue surface of the palate fornix area of the individual upper jaw tray through a mortise and tenon structure; the second surface sheet is connected with the tissue surfaces of the lower jaw rear dental area of the two sides of the lower jaw individual trays through a mortise and tenon structure.

Optionally, the upper and lower jaw individual trays are provided with upper and lower jaw dikes.

Optionally, a plurality of first holes are formed on the lateral surface of the anterior dental area occlusal dyke lip of the personalized maxillary occlusal support;

the occlusal surfaces of the anterior tooth areas and the bilateral premolars of the personalized dental tray of the upper jaw and the lower jaw are respectively provided with a plurality of second holes;

the occlusal surfaces of the dental dykes of the rear dental areas of the two sides of the personalized dental occlusion support of the upper jaw and the lower jaw are respectively provided with a first groove;

the two sides of the mandibular personalized dental fit support are respectively provided with a second groove from the front teeth to the side face of the dental fit dyke lip of the front molar area;

the rear area of the grinding surface of the individual maxillary tray is provided with a protruding structure.

Alternatively, the tissue surface of the palate fornix area of the individual maxillary tray is provided with a mortise, and the protruding structure is formed by a concave mortise of the tissue surface of the palate fornix area of the individual maxillary tray.

In the scheme of the utility model, the tissue surface of the individual tray is designed with a conveniently detachable surface patch structure as an impression terminator for accurately preparing the final impression of the toothless jaw. In a further scheme, a digital dental abutment is designed above the tray and is used for maintaining the vertical distance of a patient and being suitable for a mandibular movement recording and analyzing system to acquire and record the horizontal jaw position relation, and the device can simplify the clinical process and reduce the experience dependence and technical sensitivity of the toothless jaw repair.

Drawings

FIG. 1 is a schematic view of the structure of a personalized dental tray of the present utility model;

FIG. 2 is a schematic view of the first and second panels of the present utility model;

FIG. 3 is another schematic view of the personalized dental tray (provided with a dental dyke) of the present utility model;

fig. 4 is a schematic structural view of the personalized dental tray for upper jaw of the present utility model, wherein a and B are respectively different azimuth views;

FIG. 5 is a schematic view of the mandibular personalized dental tray of the present utility model, A and B being different views of the respective orientations;

FIG. 6 is a digitized model in an embodiment of the utility model; a is a digital model of the upper jaw; b is a digital model of the lower jaw; c is a schematic diagram of a middle jaw tray (namely initial occlusion relation data) for preparing a primary jaw relation record of the upper jaw and the lower jaw; d is an individual tray model of the upper and lower jaws with a personalized dyke model.

FIG. 7 shows a model of a respective upper and lower jaw tray obtained according to an embodiment of the present utility model, wherein A is a model of a respective upper jaw tray, and B is a model of a respective lower jaw tray;

FIG. 8 illustrates a patch structure and a personalized dyke model and finished product according to an embodiment of the present utility model; a is a first panel; b is a second panel; c is a schematic diagram of the first surface sheet after being matched with the tissue surface of the individual tray model of the upper jaw; d is a schematic diagram of the second surface sheet after being matched with the tissue surface of the individual mandibular tray model; e and F are schematic diagrams of designing a retention structure at the corresponding part of the dike model; g is a physical image of the personalized dental tray of the upper jaw (upper jaw dyke not shown); h is a physical view of the mandibular personalized dental tray (second panel not shown).

FIG. 9 is a flow chart of the preparation of a maxillary toothless impression in accordance with an embodiment of the present utility model; a is a tissue surface top view of the finished impression of the alveolar ridge made by wearing a maxillary individual tray (comprising a first face sheet); b is a tissue side view of the dental alveolar ridge obtained by wearing a maxillary individual tray (comprising a first panel); wherein the alveolar ridge region impression thickness is consistent with the first facial sheet thickness; c is a tissue plane top view of the maxillary toothless impression obtained after the first surface sheet is removed; d is a tissue side view of the maxillary toothless impression; wherein the original first facial mask region is consistent with the impression thickness of the alveolar ridge region.

Fig. 10 shows a model of a mandible comprising accurate occlusion relationship data obtained according to an embodiment of the present utility model, a being a model of a maxilla end established from scan data and data flip of individual trays of the maxilla from which the final impression is made, B being a model of a mandible established from scan data and data flip of individual trays of the mandible from which the final impression is made, C being a model of a maxilla end comprising accurate occlusion relationship data.

Detailed Description

Unless specifically stated otherwise, scientific and technical terms herein have been understood based on the knowledge of one of ordinary skill in the relevant art.

The utility model relates to a maxilla and a mandible, for example, a maxilla digital model and a mandible digital model are referred to as a maxilla digital model and a mandible digital model; the remaining relevant terms are to be understood in accordance with this meaning. The term "individual" or "personalized" of the present utility model is to be understood as specific to the particular patient's oral characteristics and bite data.

Referring to fig. 1 and 2, the personalized dental tray of the present utility model includes an individual maxillary and mandibular tray (and an individual maxillary tray 11 and an individual mandibular tray 12), a first sheet 2, and a second sheet 3; wherein the first panel 2 is mated with the palate vault area tissue midplane region of the individual maxillary tray 11 and the second panel 3 is mated with the bilateral mandibular posterior dental area tissue of the individual mandibular tray 12.

The individual trays and patches of the present utility model can be used to make individual trays with impressions (i.e., toothless impressions) as follows:

(1) Assembling, checking, grinding individual trays: fitting the first and second panels with the individual trays to ensure that the impression terminator is completely positioned, fitting the impression terminator in the mouth of the patient, checking the edges of the individual trays, and grinding the edges for a long time;

(2) Edge finishing: before starting the operation, teaching the patient to practice sucking, swallowing, voice and other actions; the edges and tissue surfaces of the individual trays assembled with the two dough sheets are sufficiently dried, so that the edge plastic silicone rubber is prevented from falling off; when edge finishing is carried out, a small amount of edge finishing silicone rubber can be placed in the area of the tray tissue surface except for two surface sheets besides adding enough silicone rubber in the edge of the individual tray and the upper jaw back dyke area; then resetting individual trays in the mouth, pressing, and finishing edge plastic finishing action; meanwhile, the thickness support of the two dough sheets is utilized, so that the impression material with a certain thickness can be reserved on the tissue surface of the tray except for the two dough sheet areas;

(3) Removing the two patches and the impression material overflowed to the surface of the terminator outside the mouth, coating the silicone rubber light body on the area, and accurately resetting the individual trays through the initial impression of the edge plastic silicone rubber without applying extra force when in place; and taking out the dental impression tray after the light weight is completely solidified, and obtaining the final impression individual tray without dental impression with the same thickness impression material on the tissue surface.

In the specific scheme, the first surface sheet is connected with the tissue surface of the palate fornix area of the individual upper jaw tray through mortise and tenon structures (21, 22); the second face piece is connected with the two-side mandibular posterior dental area tissue surface of the mandibular individual tray through mortise and tenon structures (31, 32).

Another key step in the complete denture treatment procedure for a toothless patient is the determination of jaw position relationship (bite relationship). The jaw positional relationship includes a vertical height (vertical distance) between the upper and lower jaws and a horizontal positional relationship. When stable natural dentition exists, the jaw position relationship is maintained by means of uniform and wide contact after the upper and lower teeth are occluded; when dentition is missing, the unconstrained mandible may be displaced in all directions, resulting in a loss of stable jaw relationship. Thus, the redetermination of the proper jaw relationship is critical to the success of complete denture repairs.

In the conventional process, jaw relation recording is usually performed at the next review after the final print mold is taken. The vertical distance record needs to make a wax dyke with a certain height on the gypsum model, then try in the mouth, and repeatedly adjust the height of the wax dyke to a proper vertical distance by observing the rest clearance between the upper wax dyke and the lower wax dyke, assisting in the observation of anatomical marks such as 1/3 height observation below the face, nasolabial sulcus and the like. This flow operation is comparatively loaded down with trivial details, and technical sensitivity is higher, and wax dyke needs to mould after high temperature softens, and use of fire sources such as alcohol burner has certain security risk, and the too high wax dyke of temperature gets into patient's mouth also has the risk of scalding the patient. Meanwhile, the horizontal jaw position relationship of the toothless jaw patient is generally established on the median relationship. The median relationship, i.e. the mandibular condyle is located in the unrestricted physiological posterior position in the glenoid fossa, is also the only most reproducible position available for the toothless jaw. Clinically, or by backing the mandible through a two-hand guiding method to obtain a median relationship; or orders the patient to repeatedly open the mouth and rapidly occlude to obtain the median relationship; both of these methods are highly skilled in the art and clinical experience for physicians.

The gothic bowing method is a relatively visual standardized method for obtaining the median relationship position, and is not commonly used in clinical treatment because of the need of an additional metal device and complicated installation process.

In recent years, with the development of digital technology, clinical application of a mandibular movement recording and analyzing system (electronic facebow) is helpful for acquiring personalized mandibular movement of a patient, and assisting a doctor in performing jaw relation recording in a visual state. However, at present, the system is mostly used for determining the jaw relation of a patient subjected to occlusion reconstruction through fixed repair, but no specific method for determining the jaw relation without teeth is reported by a jaw motion recording and analyzing system. The mandibular movement recording and analyzing system records mandibular movement of a patient to determine the optimal mandibular position of the patient; meanwhile, the obtained personalized mandibular movement parameters can be used for dynamic occlusion design of false teeth, and the false teeth added with the dynamic occlusion design are not only suitable for the oral and jaw systems of patients in static state, but also can meet the occlusion requirements of the patients when the patients perform functional movements (such as chewing and the like). However, in clinical applications, a jaw fork for tracking mandibular movement is required to be bonded to the outer surface of the patient's mandibular dentition, but there is limited use of such devices due to missing dentitions in the mouth of a toothless patient.

The personalized dental tray designed in other embodiments of the present utility model comprises two facial sheets and individual trays of upper and lower jaws with upper and lower jaw dykes 4 (see fig. 3) provided thereon, and can be used to determine accurate bite relationship data for a toothless patient with a mandibular motion recording and analysis system (electronic facial arch).

When determining accurate occlusion relationship data of a toothless patient by utilizing a personalized occlusal support model with an occlusal dyke model and a mandibular movement recording and analyzing system (electronic facebow), in order to ensure occlusion relationship adjustment and auxiliary equipment fixation in the process, a retention structure is designed at a corresponding position of the occlusal dyke model in a further scheme, and specific examples are as follows:

referring to fig. 4 and 5, the anterior dental area abutment wall 41 of the maxillary personalized abutment is provided with a plurality of first holes e on the labial side thereof; the device is used for scanning and positioning and determining the retention of the added silicone rubber or wax block when the lateral convexity of the upper jaw lip is determined;

the occlusal surface of the anterior teeth area and the anterior molar teeth area dental dykes (41, 42) of the personalized dental occlusion support for the upper jaw and the lower jaw is provided with a plurality of second holes g; the device is used for scanning, positioning and occluding the front teeth and the front molar area dental dyke and recording the retention of the silicone rubber;

the occlusal surfaces of the bilateral posterior dental area occlusal levees (41, 42) of the personalized occlusal support of the upper jaw and the lower jaw are respectively provided with a first groove h; the device is used for recording the retention of the silicone rubber in a biting way, adding the retention of the silicone rubber and the wax block when the vertical biting distance needs to be increased, and scanning and positioning the tooth-grinding area tooth-closing dike;

a second groove f is respectively arranged on the lateral surfaces of the lips of the dental abutment 42 from the front teeth on two sides of the personalized dental abutment of the lower jaw to the front molar area and is used for fixing the lower jaw fork of the lower jaw movement recording and analyzing system when the final jaw position relation is recorded;

a protrusion d is provided at a rear region of the ground surface of the individual maxillary tray 11 for guiding the patient's mandible to recede while determining a horizontal jaw position relationship. In still other aspects, the mortise in the mortise and tenon structures at the posterior end of the maxillary palate fornix protrude downward to form a protrusion d on the ground surface of the individual tray.

The process of acquiring the accurate jaw relation (namely accurate occlusion relation data) of a patient by utilizing the personalized dental occlusion support and mandibular movement recording and analyzing system (electronic facial arch) of the utility model is as follows:

(1) Obtaining a vertical jaw position relation: wearing the individual trays with the impressions back into the mouth of the patient, checking and confirming the upper lip salience, the vertical distance and marking the maxillary midline and the oral angle line on the occlusal dyke after ensuring stable positioning; if the resin dike is required to be lowered, polishing the dike to a proper height by using a low-speed mobile phone, and then re-describing and deepening the second hole and the first groove; if the height of the dental abutment needs to be increased, wax blocks can be added by using the second holes and the first grooves of the occlusal surface; if the convexity of the upper lip is required to be increased, adding a silicon rubber/wax block by utilizing a first hole on the lip side; obtaining corrected upper and lower individual dental trays;

(2) A mandibular movement recording and analysis system (electronic facebow) was installed in the patient's mouth:

a) The corrected upper and lower individual occlusal trays are stabilized in the mouth of the patient, and the patient is guided by the chair to perform repeatable forward movement, lateral movement and mandibular retroversion training, so that the mandibular functional movement can be correctly completed under the instruction of an operator;

b) Ordering the patient to look forward in the natural head position, uniformly coating the occlusion recording material on the maxillary fork of the mandibular movement recording and analyzing system, positioning the occlusion recording material on the occlusal surface of the maxillary dental abutment from back to front, taking out the occlusal surface after hardening, and trimming the redundant material to ensure that the occlusal surface can be stabilized in place again; see fig. 5B;

c) The components of the mandibular movement recording and analyzing system are correctly connected according to the operation instruction of the product, a head-mounted camera is fixed, and a light-cured fluid resin is used for fixing a toothless jaw clamp (mandibular positioning bite fork) in a second groove on the labial side of the mandibular bite dike; after the resin is completely hard and fixed, guiding the patient to perform mandibular movement again, and ensuring that the toothless jaw clamp is firm, stable and free of shaking in the movement; the mandibular movement is smooth and undisturbed, see fig. 5A.

(3) Using a mandibular movement recording and analyzing system to assist in determining the horizontal jaw position relationship: recording the habitual closed position (Habitual position) of the patient after muscle relaxation, and the tongue licks the protruding structure of the rear area of the individual tray of the upper jaw backwards and slowly closes the mandibular retroversion (Retral position); then guiding the patient to perform small-range opening and closing movement, enabling the patient to bite stably when closing, recording the positions and repeating the steps for 7 times, and calculating the position with highest repeatability by the software through the recorded 7 positions; then, continuously guiding the patient to repeatedly extend forwards, and performing left side and right side movements, namely performing digital Goldt bow tracing, and automatically calculating the position of the top point of the Goldt bow by software after recording is completed; and finally, guiding the patient to move the intraoral position to the green point position according to the position with highest repeatability of the central green point prompt of the screen, and when the cursor representing the mandibular position is overlapped with the central green point, obtaining the ideal final mandibular position.

At this time, the prepared occlusion record silicone rubber is beaten into the mouth between the upper and lower jaw dykes and retained by the first groove and the second hole, and the position in the mouth and the green point position are required to be confirmed to be always overlapped in the whole process.

After the occlusion recording material is fixed, accurate vertical height and horizontal relation record can be obtained, so that occlusion relation data comprising accurate vertical distance and horizontal jaw position relation can be obtained.

The personalized dental occlusion tray can be prepared by adopting a digital preparation method, and specifically comprises digital model construction and 3D printing preparation; wherein the numerical model construction can be implemented in dental software such as, but not limited to, 3shape, exocad, etc., and engineering software; engineering software such as, but not limited to, geomic wrap, materialise magics, etc. Specific examples of preparation are as follows (3 shape, engineering software is geomic wrap software for the dental software used in the examples below).

Example 1:

this example is an example of the construction of a personalized dental tray model of the present utility model comprising a first sheet, a second sheet, and an individual tray model of the upper and lower jaws:

intraoral scanning of the mouth of a toothless patient, acquisition of a digital model of the upper and lower jaws, see fig. 6A and B; the individual tray model of the upper and lower jaws can be directly obtained on the basis of the digital model of the upper and lower jaws; or acquiring an individual upper and lower jaw tray model on the basis of an upper and lower jaw digital model containing initial occlusion relation data; this embodiment generates a respective tray model of the upper and lower jaws on a digitized model of the upper and lower jaws containing initial bite relationship data, as follows:

preliminarily determining the vertical biting distance by adopting a jaw-stopping gap method, and recording by adopting a central jaw tray to obtain initial biting relation data in the mouth of the same toothless patient; the specific acquisition method comprises the following steps: uniformly coating impression materials on the upper and lower jaw tissue surfaces of the tray, and placing the impression materials into the mouth of a patient; pressing the tray to the mandibular alveolar ridge, ordering the patient to swallow the oral liquid, and gently biting to avoid mandibular protrusion; simultaneously observing and adjusting the lip side silicone rubber of the upper jaw to determine proper upper lip convexity; after the silicone rubber is completely solidified, marking a midline, a buccal corner line and a dental plane in the mouth, and scanning a central jaw tray through an extraoral warehouse sweeping device to obtain initial occlusion relation data, wherein the initial occlusion relation data is shown in fig. 6C;

importing the upper and lower jaw digital models obtained in the steps and initial occlusion relation data (STL format) into engineering software, completing registration of the upper and lower jaw digital models and the initial occlusion relation data by utilizing corresponding characteristic points of the alveolar ridge tops, obtaining upper and lower jaw digital models containing the initial occlusion relation data, inputting the upper and lower jaw digital models containing the initial occlusion relation data into dental modeling software, calibrating anatomical mark points such as upper jaw nodules, cuspid points, incisor mastoid, labial laces, tooth grinding back pads and the like in sequence, determining an occlusion plane position according to the initial jaw position relation, observing the model, filling the undercut, and generating an individual upper and lower jaw tray model, as shown in fig. 7;

importing the STL-format individual upper and lower jaw tray model into engineering software to further complete the subsequent design:

the middle area (more precisely, the middle 1/3 area) of the tissue surface of the palate fornix group of the upper jaw individual tray model shown in fig. 7 is provided with a first surface piece and a second surface piece which are respectively designed with proper thickness such as 1.5mm and form matching with the corresponding tissue surface; in a preferred embodiment, each of the panels a is retained by a male-female or mortise structure, in which embodiment the tenons b are located on the panel structure and the mortise c is provided in the corresponding tissue face of the respective tray; see fig. 8A-D.

Example 2:

the digitized individual tray and two patches designed in example 1 were 3D printed to produce a resin individual tray and patches, i.e., the personalized dental tray of this example, as shown in fig. 8G and H.

Using the above method, an example of an individual tray with stamps was prepared using the individual tray and dough sheet prepared in example 2:

(1) Assembling, checking, and grinding individual trays;

(2) Edge finishing, in this example the tray tissue side can leave 1.5mm of impression material except for the two sheet areas, see FIGS. 9A, B;

(3) The final impression individual tray for the toothless jaw with impression material of 1.5mm thickness on both tissue sides was finally obtained, as shown in fig. 9c, d.

Example 3:

the embodiment is to further perform design and acquisition on the basis of the model of the embodiment 1, and the design of a personalized dental occlusion tray model comprises an individual upper and lower jaw tray model, two face sheets and a personalized dental occlusion dike model:

according to the initial bite relationship data described in example 1, the height, width and convexity of the upper and lower jaw dykes were determined on the upper and lower jaw individual tray model obtained in example 1, and the personalized dyke model design was completed, as shown in fig. 6D, and output in STL format.

When determining accurate occlusion relationship data of a toothless patient by utilizing a personalized occlusal support model with an occlusal dyke model and a mandibular movement recording and analyzing system (electronic facebow), in order to ensure occlusion relationship adjustment and auxiliary equipment fixation in the process, a retention structure is designed at a corresponding position of the occlusal dyke model in a further scheme, and specific examples are as follows:

4 first holes e which are uniformly distributed are arranged on the lateral surface of the anterior dental zone occlusal dyke lip of the maxillary personalized occlusal support model shown in fig. 6D; as shown in figures 8E and F of the drawings,

4 second holes g which are uniformly distributed are formed in the occlusal surface of the dental abutment of the front tooth area and the front molar area of the personalized dental abutment model of the upper jaw and the lower jaw;

the occlusal surfaces of dental dykes in the rear dental areas of the two sides of the personalized dental occlusion support model of the upper jaw and the lower jaw are respectively provided with a first groove h;

a second groove f is respectively arranged on the side surfaces of the dental abutment lips from the bilateral front teeth of the mandibular personalized dental abutment model to the premolaring region;

a protrusion structure d is provided in a rear region of the grinding surface of the individual tray model of the upper jaw.

Example 4:

the personalized dental tray model designed in example 3 was 3D printed to produce a resin personalized dental tray for the upper and lower jaws, see fig. 8G and H.

The dough piece prepared in this example was used with an individual tray to obtain an individual tray of the patient from which an impression was made (i.e., a toothless impression), as described above.

The exact jaw position relationship of the patient was then obtained using the personalized dental tray and mandibular movement recording and analysis system (electronic facial arch) prepared in example 4 (specific method as described above:

(1) Acquiring a vertical jaw position relation;

(2) A mandibular movement recording and analysis system (electronic facebow) was installed in the patient's mouth:

(3) The mandibular movement recording and analysis system is used to assist in determining the horizontal jaw positional relationship, resulting in a model of the embodiment that includes bite relationship data for accurate vertical distance and horizontal jaw positional relationship.

Further obtaining a digital final model and transferring a final jaw relation through scanning and data overturning (in engineering transfer): the individual trays (shown in fig. 9C, d) on which the final impression is completed, and the bite relationship data recording the vertical distance and the horizontal jaw position relationship are converted into digital information by a tabletop scanner, and a toothless final model having a final jaw position relationship is output in STL format, as shown in fig. 10A to C.

In practical application, the personalized mandibular movement parameters of the patient can be obtained on the basis of the step (2): repositioning the maxillary fork, connecting with an optical sensor, and positioning the maxillary plane; then taking out the upper jaw fork, and reconnecting the optical sensor to the front end of the mandibular toothless jaw clamp; according to the software prompt, guiding the patient to sequentially perform forward movement, left side movement and right side movement, and measuring three times of each movement respectively to finish measurement; and outputting the digital reference position of the upper jaw plane and the personalized lower jaw movement parameters for transferring the virtual dental articulator.

Claims (5)

1. A personalized dental tray, comprising an individual tray for upper and lower jaws, a first panel and a second panel;

the first panel is matched with the middle area of the tissue surface of the palate fornix area of the individual tray of the upper jaw, and the second panel is matched with the tissue surface of the two-sided mandibular posterior dental area of the individual tray of the lower jaw.

2. The personalized dental occlusion tray of claim 1, wherein the first face piece is connected to the palate fornix area tissue of the individual tray of the upper jaw by a mortise and tenon structure; the second surface sheet is connected with the tissue surfaces of the lower jaw rear dental area of the two sides of the lower jaw individual trays through a mortise and tenon structure.

3. The personalized dental tray of claim 1, wherein the individual trays of upper and lower jaws are provided with upper and lower jaw dykes.

4. The personalized dental tray of claim 3, wherein the anterior dental area of the individual tray of the upper jaw is laterally provided with a plurality of first apertures;

the occlusal surfaces of the front tooth areas and the double-side front molar areas of the upper and lower jaw individual trays are respectively provided with a plurality of second holes;

the occlusal surfaces of dental dykes in the rear dental areas of the two sides of the upper and lower jaw individual trays are respectively provided with a first groove;

the two sides of the anterior teeth of the mandibular individual tray are respectively provided with a second groove to the side surface of the occlusal dyke lip of the premolaring area;

the rear area of the grinding surface of the individual maxillary tray is provided with a protruding structure.

5. The personalized dental occlusion tray of claim 4, wherein the jaw fornix area tissue of the individual maxillary tray is provided with a tongue and groove, and the protrusion is formed by a tongue and groove depression of the jaw fornix area tissue of the individual maxillary tray.