Method and system for management of interocclusal space based on position of contact area of restoration

Abstract

The present application belongs to the technical field of auxiliary medical treatment, and particularly relates to a digital alveolar septum management method and system based on the position of a prosthetic body proximal surface contact area. In the method of the present application, the position of the ideal prosthetic body proximal surface contact area in the jaw bone is determined by fitting, and then visualized in the design software. Then, under the guidance of the visualized information of the position of the ideal prosthetic body proximal surface contact area in the jaw bone, the digital alveolar septum increment design or alveolar septum modification design is performed. The present application further provides a system for implementing the above method. The design method and system of the present application are more convenient and accurate, and have a good application prospect.

Description

Technical Field

[0001] This invention belongs to the field of assistive medical technology, specifically relating to a method and system for alveolar septum management based on the location of the proximal contact area of ​​a restoration. Background Technology

[0002] The importance of alveolar septum management is primarily reflected in the reconstruction of the gingival papillae in the aesthetically pleasing region of continuously missing teeth. The alveolar bone of natural teeth has a scalloped shape that adapts to the gingival margin and gingival papillae, forming the basis for maintaining the stability and fullness of these structures. In implant dentistry, the alveolar bone often becomes flattened due to prolonged tooth loss, making it difficult for the alveolar septum to support the gingival papillae, leading to partial or complete loss of the papillae. Therefore, in implant restoration, restoring the appropriate distance between the proximal contact area of ​​the restoration and the alveolar septum is a prerequisite for gingival papilla reconstruction. For cases of continuous tooth loss in the aesthetic region, alveolar septum augmentation and reshaping are often necessary to support the gingival papillae and achieve the desired aesthetic restoration effect.

[0003] Over the past decade, digital technology has made significant strides in the field of dental implantology. Guided by the "restorative-oriented" philosophy, digital technology can improve the accuracy of preoperative design and reduce the sensitivity of intraoperative manipulation, from preoperative implant placement planning to tissue augmentation design, ultimately achieving good restorative results. While preoperative digital design can meet some clinical needs, current procedures neglect the importance of further refining the augmented tissue after augmentation surgery, especially alveolar septum management based on the proximal contact area of ​​the prosthesis.

[0004] In existing technologies, the design of alveolar septum increment is usually based on experience, and there is no clear reference point for the increment range, so it is impossible to perform precise alveolar septum bone increment. In addition, alveolar septum trimming after bone increment surgery requires the surgeon to use periodontal probes to repeatedly measure and then gradually grind the septum bone, which has disadvantages such as high technical sensitivity, long operation time and high risk of infection. At present, there is still a lack of precise digital design and implementation plan.

[0005] In conclusion, there is an urgent need in this field to develop new digital solutions for precise alveolar septum bone management. Summary of the Invention

[0006] To address the problems of existing technologies, this invention provides a digital alveolar septum management method and system based on the location of the proximal contact area of ​​a restoration.

[0007] A digital alveolar septum increment design method based on the location of the proximal contact area of ​​a restoration includes the following steps:

[0008] Step 1: Extract the jawbone model from CBCT data;

[0009] Step 2: Design an ideal restoration for the missing tooth site based on the intraoral scan data, and obtain set data of the intraoral scan and the location of the contact area of ​​the proximal surface of the ideal restoration;

[0010] Step 3: Using the remaining teeth to fit the jawbone model and the grouped data, the position of the proximal contact area of ​​the ideal restoration in the jawbone is obtained;

[0011] Step 4: Visualize the position of the ideal proximal contact area of ​​the restoration in the jawbone to complete the precise design of the alveolar septum increment.

[0012] Preferably, in step 1, the jawbone model is extracted from CBCT data by adjusting the surface critical value and using a 3D data editor.

[0013] Preferably, steps 1-4 are implemented in EXOCAD dental software.

[0014] This invention also provides a digital alveolar septum increment design system based on the location of the proximal contact area of ​​a restoration, comprising:

[0015] The input module is configured to input CBCT data and intraoral scan data;

[0016] The alveolar septum incremental design module is configured to perform alveolar septum incremental design according to the above-described digital alveolar septum incremental design method;

[0017] The output module is configured to output the design results.

[0018] This invention also provides a digital alveolar septum trimming design method based on the location of the proximal contact area of ​​a restoration, comprising the following steps:

[0019] Step A: Extract the jawbone model from the CBCT data;

[0020] Step B: Design an ideal restoration for the missing tooth site based on the intraoral scan data, and obtain set data of the intraoral scan and the location of the contact area of ​​the proximal surface of the ideal restoration;

[0021] Step C: Using the remaining teeth to fit the jawbone model and the grouped data, the position of the proximal contact area of ​​the ideal restoration in the jawbone is obtained;

[0022] Step D: In the grouped data, delete the gingiva in the area requiring alveolar septum trimming in the intraoral scan data, and delete the teeth in the jawbone model that overlap with the intraoral scan data.

[0023] Step E: Visualize the location of the ideal proximal contact area of ​​the prosthesis in the jawbone, and complete the design of the bone trimming guide in the set of data.

[0024] Preferably, in step A, the jawbone model is extracted from CBCT data by adjusting the surface critical value and using a 3D data editor.

[0025] Preferably, steps A through E are implemented in EXOCAD dental software.

[0026] This invention also provides a digital alveolar septum trimming design system based on the location of the proximal contact area of ​​a restoration, comprising:

[0027] The input module is configured to input CBCT data and intraoral scan data;

[0028] The alveolar septum increment design module is configured to perform alveolar septum trimming design according to the above-mentioned digital alveolar septum trimming design method;

[0029] The output module is configured to output the design results.

[0030] The present invention also provides a computer-readable storage medium storing: a computer program for implementing the above-described digital alveolar space incremental design method, or a computer program for implementing the above-described digital alveolar space trimming design method.

[0031] In the design phase of dental implantology (such as the digital alveolar septum increment design and digital alveolar septum trimming design involved in this invention), selecting appropriate reference positions and displaying them visually in real-time within the design software is crucial for ensuring design accuracy. This invention constructs a novel method for alveolar septum management, enabling the ideal proximal contact area of ​​the proximal restoration to serve as a visual reference position for the design, accurately displaying it in the design software. This provides a new method for alveolar septum increment and trimming design, overcoming the inaccuracy of increment and trimming ranges in existing alveolar septum management designs, and achieving real-time, measurable, and precise alveolar septum management. It effectively improves the convenience and accuracy of alveolar septum management design. Therefore, this invention has excellent application prospects.

[0032] Obviously, based on the above description of the present invention, and according to common technical knowledge and conventional methods in the field, various other modifications, substitutions, or alterations can be made without departing from the basic technical concept of the present invention.

[0033] The following detailed embodiments further illustrate the above-described content of the present invention. However, this should not be construed as limiting the scope of the present invention to the following examples. All technologies implemented based on the above-described content of the present invention fall within the scope of the present invention. Attached Figure Description

[0034] Figure 1This is a flowchart illustrating Embodiments 1 and 2 of the present invention.

[0035] Figure 2 This is an example image of the jawbone model extracted from CBCT data in Example 1.

[0036] Figure 3 Example diagram of designing an ideal prosthesis based on intraoral scanning data in Example 1.

[0037] Figure 4 This is an example diagram showing the precise location of the proximal contact area of ​​the ideal prosthesis in the jawbone in Example 1.

[0038] Figure 5 This is an example diagram illustrating the bone augmentation design completed in Example 1 with visualization of the contact area of ​​the ideal prosthesis.

[0039] Figure 6 This is an example image of the jawbone model extracted from CBCT data in Example 2.

[0040] Figure 7 Example diagram of designing an ideal prosthesis based on intraoral scanning data in Example 2.

[0041] Figure 8 This is an example diagram of fitting a jawbone model, intraoral scan data, and an ideal restoration using the remaining teeth in Example 2.

[0042] Figure 9 This is an example diagram of teeth that overlap with the intraoral scan data in the gingival and jawbone models of the areas requiring alveolar septum trimming, which were deleted from the intraoral scan data in Example 2.

[0043] Figure 10 This is an example diagram illustrating the design of a bone trimming guide plate in Example 2, where the location of the contact area between the adjacent surfaces of the ideal prosthesis is visualized. Detailed Implementation

[0044] It should be noted that the algorithms for data acquisition, transmission, storage and processing steps not specifically described in the embodiments, as well as the hardware structures and circuit connections not specifically described, can all be implemented using content already disclosed in the prior art.

[0045] Example 1: Digital Alveolar Spacing Increment Design Based on Proximal Contact Area Location of Restoration

[0046] The method flow of this embodiment is as follows: Figure 1 As shown, it includes the following steps:

[0047] Step 1: Input the DCM file of the CBCT data into EXOCAD dental. Extract the jawbone model by adjusting the surface critical value and using the 3D data editor, and export it as an STL file (e.g., ...). Figure 2 ).

[0048] Step 2: Based on the oral prosthesis design requirements, use EXOCAD dental to design the ideal prosthesis for the edentulous site on the intraoral scan data. Obtain grouped data of the intraoral scan and the contact area of ​​the ideal prosthesis, and export it as an STL file (e.g., Figure 3 ).

[0049] Step 3: Input the jawbone model obtained in Step 1 and the grouped data obtained in Step 2 into EXOCAD dental. Fit the two data according to the morphology of the remaining teeth to obtain the precise position of the proximal contact area of ​​the ideal restoration in the three-dimensional space of the jawbone model (e.g., Figure 4 ).

[0050] Step 4: In EXOCAD dental, visualize the location of the ideal proximal contact area of ​​the restoration within the jawbone. Based on the location of the ideal proximal contact area, perform a virtual bone increment application to the alveolar septum to complete the increment design (e.g., Figure 5 ).

[0051] Using the above method, virtual bone augmentation can be performed on the alveolar septum under the condition that the contact area of ​​the ideal restoration is visible, which makes the alveolar septum bone augmentation more precise.

[0052] Example 2: Digital Alveolar Spacing Design Based on Proximal Contact Area of ​​Restoration

[0053] The method flow of this embodiment is as follows: Figure 1 As shown, it includes the following steps:

[0054] Step A: Input the DCM file of the CBCT data into EXOCAD dental, extract the jawbone model by adjusting the surface critical value and the 3D data editor, and export it as an STL file (e.g., Figure 6 ).

[0055] Step B: Based on the oral prosthesis design requirements, EXOCAD dental is used to design the ideal prosthesis for the edentulous site on the intraoral scan data. This yields a set of data on the intraoral scan and the location of the proximal contact area of ​​the ideal prosthesis, which is then exported as an STL file (e.g., ...). Figure 7 ).

[0056] Step C: Input the STL file of the jawbone model obtained in Step A and the grouped data obtained in Step B into EXOCADdental. Fit the two files according to the morphology of the remaining teeth to obtain the precise position of the proximal contact area of ​​the ideal restoration in the three-dimensional space of the jawbone model (e.g., Figure 8 ).

[0057] Step D: In the EXOCAD dental described in step C, delete the gingiva in the area requiring alveolar septum trimming from the intraoral scan data, and delete the teeth in the jawbone model that overlap with the intraoral scan data. Export the resulting grouped data as an STL file (e.g., ...). Figure 9 ).

[0058] Step E: Input the STL file of the grouped data obtained in Step D into EXOCAD dental. Visualize the position of the ideal proximal contact area of ​​the restoration in the jawbone. Based on the design principle of the distance between the alveolar bone and the proximal contact area of ​​the restoration, use the virtual gingival design tool to draw a bone trimming guide in the grouped data to complete the alveolar septum trimming design (e.g., Figure 10 ).

[0059] Using the above methods, bone trimming guides can be precisely designed under the condition that the contact area of ​​the ideal restoration is visible, so as to accurately guide the alveolar septum trimming.

[0060] As can be seen from the above embodiments, the present invention realizes a method for alveolar septum increment design and alveolar septum trimming design under the condition that the contact area of ​​the proximal surface of the ideal restoration is visible. It can achieve more accurate alveolar septum design and has good application prospects.

Claims

1. A digital alveolar septum increment design method based on the location of the proximal contact area of ​​a restoration, characterized in that, Includes the following steps: Step 1: Extract the jawbone model from CBCT data; Step 2: Design an ideal restoration for the missing tooth site based on the intraoral scan data, and obtain set data of the intraoral scan and the location of the contact area of ​​the proximal surface of the ideal restoration; Step 3: Using the remaining teeth to fit the jawbone model and the grouped data, the position of the proximal contact area of ​​the ideal restoration in the jawbone is obtained; Step 4: Visualize the position of the ideal proximal contact area of ​​the restoration in the jawbone to complete the precise design of the alveolar septum increment; Steps 1-4 are implemented in EXOCAD dental software.

2. The digital alveolar septum incremental design method according to claim 1, characterized in that: In step 1, the jawbone model is extracted from CBCT data by adjusting the surface critical value and using a 3D data editor.

3. A digital alveolar septum incremental design system based on the location of the proximal contact area of ​​a restoration, characterized in that, include: The input module is configured to input CBCT data and intraoral scan data; The alveolar septum incremental design module is configured to perform alveolar septum incremental design according to the digital alveolar septum incremental design method of claim 1 or 2. The output module is configured to output the design results.

4. A digital alveolar septum trimming design method based on the location of the proximal contact area of ​​a restoration, characterized in that, Includes the following steps: Step A: Extract the jawbone model from the CBCT data; Step B: Design an ideal restoration for the missing tooth site based on the intraoral scan data, and obtain set data of the intraoral scan and the location of the contact area of ​​the proximal surface of the ideal restoration; Step C: Using the remaining teeth to fit the jawbone model and the grouped data, the position of the proximal contact area of ​​the ideal restoration in the jawbone is obtained; Step D: In the grouped data, delete the gingiva in the area requiring alveolar septum trimming in the intraoral scan data, and delete the teeth in the jawbone model that overlap with the intraoral scan data. Step E: Visualize the position of the ideal proximal contact area of ​​the prosthesis in the jawbone, and complete the design of the bone trimming guide in the grouped data; Steps A through E are implemented in the EXOCAD dental software.

5. The digital alveolar septum trimming design method according to claim 4, characterized in that: In step A, the jawbone model is extracted from CBCT data by adjusting the surface critical value and using a 3D data editor.

6. A digital alveolar septum trimming design system based on the location of the proximal contact area of ​​a restoration, characterized in that, include: The input module is configured to input CBCT data and intraoral scan data; The alveolar septum incremental design module is configured to perform alveolar septum trimming design according to the digital alveolar septum trimming design method of claim 4 or 5. The output module is configured to output the design results.

7. A computer-readable storage medium, characterized in that, It stores: a computer program for implementing the digital alveolar septum incremental design method as described in claim 1 or 2, or a computer program for implementing the digital alveolar septum trimming design method as described in claim 4 or 5.

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