A Denture Bridge Fusion Method for Oral Restoration

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 ...

AI Technical Summary

Problems solved by technology

The difficulty of this fusion method is how to extract the appropriate boundary line and ridge line: the surface obtained by interpolation is directly used as the surface of the connecting body, which means that the shape of the boundary line determines the cross-sectional shape of the connecting body, and the ridge line determines the axial extension of the connecting body. Therefore, this method requires a high construction of boundary lines and ridges, and its calculation is difficult, and it is difficult to obtain ideal results

At present, another way of denture bridge fusion is to adopt a method similar to "expansion and cutting". By increasing the shape of the retainer, it intersects with the pontic to obtain the pontic, and expands the retainer and pontic toward the pontic. For the mesial and distal surfaces where the pontics meet, increase the size of the retainer in the mesial-distal direction, so that after the outer surface of the retainer intersects with the outer surface of the pontic, delete the areas that are included in each other, and then place the The two models are sutured together to form a denture-bridge fusion. The fusion process of this method is complicated, and the shape of the teeth needs to be changed. There are large errors in itself and the fusion effect is poor.

In general, the current denture bridge fusion method is relatively complicated, difficult to calculate, and the fusion effect is poor, which is difficult to meet the needs of the field of denture restoration

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