A Denture Bridge Fusion Method for Oral Restoration

A fusion method and oral restoration technology, applied in the field of denture restoration, can solve the problems of increasing the size of the retainer, changing the tooth, boundary line and ridge line structure, and achieving the effect of good fusion effect, less calculation, and easy implementation.

A fusion method and oral restoration technology, applied in the field of denture restoration, can solve the problems of increasing the size of the retainer, changing the tooth, boundary line and ridge line structure, and achieving the effect of good fusion effect, less calculation, and easy implementation.

CN107684466BActive Publication Date: 2020-06-16FOSHAN NUOWEI TECH
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  • A Denture Bridge Fusion Method for Oral Restoration
  • A Denture Bridge Fusion Method for Oral Restoration
  • A Denture Bridge Fusion Method for Oral Restoration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] refer to figure 2 , the invention provides a denture bridge fusion method for oral restoration, comprising the steps of:

[0071] S1. Based on the bounding box algorithm, respectively establish the bounding boxes corresponding to the two adjacent models of the denture bridge fusion; the bounding box algorithm here can adopt the AABB tree bounding box algorithm, the OBB tree bounding box algorithm, etc.;

[0072] S2. After traversing the bounding boxes of the two adjacent models respectively, the intersection of the bounding boxes of the two models is obtained by solving, and then the intersection line between the two models is calculated, and finally the two models are calculated according to the intersection line. regional division;

[0073] S3. Calculating and filtering out redundant regions in the regions divided by the two models, and deleting them;

[0074] S4. Perform boundary matching and stitching on the two models after region deletion, and then perform smoo...

Embodiment 2

[0116] This embodiment is a specific example of Embodiment 1. This embodiment takes the tooth model and the connector model as examples to describe in detail how to perform the fusion, specifically including the following steps:

[0117] Step 1. Based on the AABB tree bounding box algorithm, respectively establish the AABB tree bounding boxes corresponding to the two adjacent models of the denture bridge fusion.

[0118] Since the denture bridge fusion tooth model, retainer model and connector model are all composed of triangle faces, the number of triangle faces is very large, and the efficiency of intersection detection in units of triangle faces is very low. In order to improve the detection efficiency, a more reliable solution is: the model first constructs the AABB tree, and then performs intersection detection. The AABB tree divides the model in the form of bounding boxes. If there is an intersection, then perform intersection detection on the triangles in the bounding b...

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Abstract

The invention discloses a false tooth bridge fusion method used for oral repair. The false tooth bridge fusion method comprises the following steps: S1, separately establishing bounding boxes corresponding to two adjacent models of a false tooth bridge fusion body based on a bounding box algorithm; S2, separately traversing the bounding boxes of the two adjacent models, dissolving to obtain a crossed part of the bounding boxes of the two models, calculating an intersection line of the two models, and performing regional division on the two models according to the intersection line; S3, calculating and screening a redundant area in an area divided by the two models, and deleting the redundant area; and S4, performing boundary matching and suturing on the two models subjected to the area deletion, and performing smooth treatment. The method is less in calculating amount, adopts a single algorithm, is convenient to implement, has a better fusion effect, and can be widely applied to the false tooth repair industry.

Description

technical field [0001] The invention relates to the field of denture restoration, in particular to a denture bridge fusion method for oral restoration. Background technique [0002] combine figure 1 The following terms are explained: [0003] Bridge body: a restoration specially used to repair dentition defects, that is, artificial teeth, is a part that restores the shape and function of missing teeth. Strength, the role is to replace missing teeth. [0004] Retainer: A device that fixes a position. Through the connection function of the connector, the retainer and the pontic are fused into a whole, so that the retainer plays a role of retention and fixes the pontic to the missing tooth. [0005] Connector: A connecting device that connects left and right adjacent teeth. The retainer needs to fix the pontic, which cannot be done by itself. It is necessary to fuse the pontic and the retainer together through the connector. The function of the connector is to connect the ...

Claims

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Application Information

Patent Timeline
16 Jun 2020
Publication
CN107684466B
IPC
A61C13/08; A61C13/34
CPC
A61C13/0004; A61C13/08; A61C13/34; A61C2204/00
Inventors
王煜; 马季仁