Digital jaw position recording and occlusal relationship collecting device and method

Abstract

The invention discloses a digital jaw position recording and occlusal relationship collecting device and method, and relates to the technical field of oral medicine. Comprising the following steps: acquiring upper and lower jaw tissue surface data of a to-be-detected person, generating an oral cavity model of the to-be-detected person, performing three-dimensional data design based on the oral cavity model to obtain a tray model, importing the tray model into 3D printing software to obtain a personalized occlusion tray, wearing the tray by the to-be-detected person, and obtaining a static jaw position relationship by utilizing a three-dimensional scanner. The method comprises the following steps: acquiring opening and closing, lateral and front-back movement track data by using a lower jaw movement analysis system to form acquisition data, preprocessing the acquisition data, and inputting the preprocessed data into digital restoration / orthodontic design software to carry out subsequent digital design and analysis of a restoration / orthodontic appliance. According to the invention, high-precision jaw position recording and occlusal relationship acquisition are realized, data can be seamlessly jointed with a digital design process, the prosthesis adaptation rate and the treatment efficiency are improved, and the method has remarkable clinical application value and popularization prospect.

Description

Technical Field

[0001] This invention relates to the field of oral medicine technology, and in particular to a digital jaw position recording and occlusal relationship acquisition device and method. Background Technology

[0002] With the rapid development of digital dentistry, traditional methods for recording jaw position and acquiring occlusal relationships have gradually revealed their limitations. Currently, commonly used jaw position recording methods mainly rely on traditional physical materials such as plaster models, wax embankments, and occlusal recording films, combined with transfer frames and mechanical face bows for frame transfer. Existing methods generally suffer from drawbacks such as requiring highly experienced surgeons, being prone to errors, difficulty in directly digitizing data, lack of convenient integration with digital design workflows, cumbersome recording and transfer processes, poor patient experience, and inability to accurately record and analyze occlusal movement trajectories. Especially in complex cases, efficiently and accurately recording and transferring jaw position relationships is crucial for improving prosthesis fit and reducing rework rates.

[0003] Therefore, providing a digital jaw position recording and occlusal relationship acquisition device and method to overcome the difficulties of the existing technology is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the present invention provides a digital jaw position recording and occlusal relationship acquisition device and method, which realizes high-precision jaw position recording and occlusal relationship acquisition. The data can be seamlessly connected to the digital design process, improving the fitting rate of prostheses and treatment efficiency, and has significant clinical application value and promotion prospects.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A digital jaw position recording and occlusal relationship acquisition device includes a maxillary occlusal module and a mandibular occlusal module. Each occlusal module includes a tray and a support. The bottom of the tray fits into the internal tissue surface of the oral cavity, and the top is provided with a positioning groove for fixing the positioning support.

[0007] Optionally, the mandibular occlusion module has a slot at the front end of the bracket for fixing the oral 3D scanner to generate oral scan images.

[0008] A method for digital jaw position recording and occlusal relationship acquisition, used to execute the digital jaw position recording and occlusal relationship acquisition device described in any one of the above claims, includes the following steps:

[0009] Data acquisition steps: Obtain the maxillary and mandibular tissue surface data of the person to be tested;

[0010] Tray customization steps: Generate an oral cavity model of the person to be tested based on the surface data of the upper and lower jaw tissues; design a tray model based on the oral cavity model using 3D data; and import the tray model into 3D printing software to obtain a personalized occlusal tray.

[0011] Data collection steps: The person to be tested wears a tray, and a 3D scanner is used to obtain the static jaw position relationship. The mandibular motion analysis system is used to obtain the data on mouth opening and closing, lateral and anterior-posterior movement trajectories, forming the collected data.

[0012] Data analysis steps: After preprocessing the collected data, it is input into the digital restoration / orthodontic design software for subsequent digital design and analysis of restorations / aligners.

[0013] Optionally, the data acquisition step utilizes a mandibular motion analysis system to complete data acquisition, including the following steps:

[0014] A signal receiver is fixedly installed on the face bow;

[0015] The maxillary tray and positioning bracket are installed on the maxilla, connected to a signal generator, and data information is transmitted from the signal generator to the signal receiver to record the relative position of the maxilla.

[0016] Install the mandibular tray and positioning bracket, connect the signal generator, and make the mandible drive the signal generator to complete the forward protrusion and left and right side movements in an orderly manner multiple times. Record the signals at different sites, generate the mandibular movement path, find the intersection point, and record the occlusal relationship at the intersection point.

[0017] The mandibular motion analysis system outputs the relative position of the maxilla, the mandibular motion path, and the location of the intersection point in the format .jawmotion motion trajectory data.

[0018] Optionally, the data acquisition method in the data collection step may include oral scanning or warehouse scanning.

[0019] As can be seen from the above technical solution, compared with the prior art, the present invention provides a digital jaw position recording and occlusal relationship acquisition device and method, which has the following beneficial effects: 1) The present invention can significantly improve the accuracy and efficiency of jaw position recording, reduce human error, and support complete digital acquisition of static and dynamic occlusal relationships, improve the fitting rate and success rate of digital restoration and orthodontic design, optimize patient experience, and simplify operation process; 2) The present invention achieves high-precision jaw position recording and occlusal relationship acquisition, and the data can be seamlessly connected to the digital design process, improving the fitting rate of restorations and treatment efficiency, and has significant clinical application value and promotion prospects. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is a front view of a digital jaw position recording and occlusal relationship acquisition device disclosed in this invention;

[0022] Figure 2 This is a side view of a digital jaw position recording and occlusal relationship acquisition device disclosed in this invention;

[0023] Figure 3 This is a flowchart of a digital jaw position recording and occlusal relationship acquisition method disclosed in this invention. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Reference Figure 1 and Figure 2 As shown, the present invention discloses a digital jaw position recording and occlusal relationship acquisition device, including a maxillary occlusal module and a mandibular occlusal module. Each occlusal module includes a tray and a support. The bottom of the tray fits into the internal tissue surface of the oral cavity, and the top is provided with a positioning groove for fixing the positioning support.

[0026] Furthermore, three positioning slots are provided, the bracket height is set to the wax lift height, and the maxillary occlusion module and mandibular occlusion module are 3D printed using medical-grade resin material.

[0027] Furthermore, the front end of the mandibular occlusion module's support is equipped with a slot for fixing the oral 3D scanner to generate oral scan images.

[0028] A method for digital jaw position recording and occlusal relationship acquisition, used to execute the digital jaw position recording and occlusal relationship acquisition device described in any of the above-mentioned embodiments, with reference to... Figure 3 As shown, the process includes the following steps: Data acquisition step: Acquire the maxillary and mandibular tissue surface data of the person to be tested;

[0029] Tray customization steps: Generate an oral cavity model of the person to be tested based on the surface data of the upper and lower jaw tissues; design a tray model based on the oral cavity model using 3D data; and import the tray model into 3D printing software to obtain a personalized occlusal tray.

[0030] Data collection steps: The person to be tested wears a tray, and a 3D scanner is used to obtain the static jaw position relationship. The mandibular motion analysis system is used to obtain the data on mouth opening and closing, lateral and anterior-posterior movement trajectories, forming the collected data.

[0031] Data analysis steps: After preprocessing the collected data, it is input into the digital restoration / orthodontic design software for subsequent digital design and analysis of restorations / aligners.

[0032] Furthermore, after the person being tested wears the tray, it is ensured that their upper and lower jaws can bite firmly and move freely.

[0033] Furthermore, the data acquisition process utilizes a mandibular motion analysis system to complete data acquisition, including the following steps:

[0034] A signal receiver is fixedly installed on the face bow;

[0035] The maxillary tray and positioning bracket are installed on the maxilla, connected to a signal generator, and data information is transmitted from the signal generator to the signal receiver to record the relative position of the maxilla.

[0036] Install the mandibular tray and positioning bracket, connect the signal generator, and make the mandible drive the signal generator to complete the forward protrusion and left and right side movements in an orderly manner multiple times. Record the signals at different sites, generate the mandibular movement path, find the intersection point, and record the occlusal relationship at the intersection point.

[0037] The mandibular motion analysis system outputs the relative position of the maxilla, the mandibular motion path, and the location of the intersection point in the format .jawmotion motion trajectory data.

[0038] Furthermore, static jaw relationship includes the fit between the tray and the dental arch.

[0039] Furthermore, the data acquisition methods in the data collection steps include oral scanning or warehouse scanning.

[0040] In one specific embodiment, all subjects successfully completed the acquisition of occlusal relationship and mandibular movement data. The digital tray and positioning bracket had a high degree of fit, were comfortable to wear, and had no obvious discomfort. The acquired three-dimensional occlusal data were compared with traditional plaster models, and the error was within 0.3mm, which met the clinical repair needs.

[0041] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A digital jaw position recording and occlusal relationship acquisition device, characterized in that, It includes a maxillary occlusion module and a mandibular occlusion module. Each occlusion module includes a tray and a support. The bottom of the tray fits into the internal tissue surface of the oral cavity, and the top is provided with a positioning groove for fixing the positioning support.

2. The digital jaw position recording and occlusal relationship acquisition device according to claim 1, characterized in that, The mandibular occlusion module has a slot at the front end of the bracket to fix the oral 3D scanner and generate oral scan images.

3. A method for digital jaw position recording and occlusal relationship acquisition, used to execute the digital jaw position recording and occlusal relationship acquisition device according to any one of claims 1-2, characterized in that, Includes the following steps: Data acquisition steps: Obtain the maxillary and mandibular tissue surface data of the person to be tested; Tray customization steps: Generate an oral cavity model of the person to be tested based on the surface data of the upper and lower jaw tissues; design a tray model based on the oral cavity model using 3D data; and import the tray model into 3D printing software to obtain a personalized occlusal tray. Data collection steps: The person to be tested wears a tray, and a 3D scanner is used to obtain the static jaw position relationship. The mandibular motion analysis system is used to obtain the data on mouth opening and closing, lateral and anterior-posterior movement trajectories, forming the collected data. Data analysis steps: After preprocessing the collected data, it is input into the digital restoration / orthodontic design software for subsequent digital design and analysis of restorations / aligners.

4. The method for digital jaw position recording and occlusal relationship acquisition according to claim 3, characterized in that, The data acquisition process utilizes a mandibular motion analysis system to collect data, including the following steps: A signal receiver is fixedly installed on the face bow; The maxillary tray and positioning bracket are installed on the maxilla, connected to a signal generator, and data information is transmitted from the signal generator to the signal receiver to record the relative position of the maxilla. Install the mandibular tray and positioning bracket, connect the signal generator, and make the mandible drive the signal generator to complete the forward protrusion and left and right side movements in an orderly manner multiple times. Record the signals at different sites, generate the mandibular movement path, find the intersection point, and record the occlusal relationship at the intersection point. The mandibular motion analysis system outputs the relative position of the maxilla, the mandibular motion path, and the location of the intersection point in the format .jawmotion motion trajectory data.

5. The method for digital jaw position recording and occlusal relationship acquisition according to claim 3, characterized in that, The data acquisition process includes methods such as oral scanning or warehouse scanning.

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