Direct three-dimensional scanning method for physiological movement boundary of oral cavity soft tissue

Abstract

The invention relates to a direct three-dimensional scanning method for a physiological movement boundary of oral cavity soft tissue. The direct three-dimensional scanning method includes the following steps that for remaining tooth dentitions or edentulous jaw alveolar ridge crests and alveolar ridge side faces, an oral three-dimensional scanning instrument is used for directly scanning the region where no movement occurs during functional movement of the oral cavity soft tissue, so that data D1 is obtained; based on three-dimensional scanning data, an individual tray is subjected to 3D printing; the individual tray and an edge plasticization material of the soft tissue are used for edge plasticization; the oral three-dimensional scanning instrument is used for scanning the region coveredby the plasticization material, so that data D2 is obtained; with the region, except the edge, covered by the plasticization material being a shared region, D2 and D1 are registered, and an overlapped region is deleted; data fusing is conducted, and accordingly oral cavity internal soft and hard tissue morphological three-dimensional scanning data with the complete soft tissue functional movementboundary is obtained. Through the direct three-dimensional scanning method, it can be avoided that the oral cavity three-dimensional scanning instrument cannot obtain the soft tissue functional movement boundary, and the efficiency of producing an oral cavity soft tissue functional boundary impression manually is remarkably improved.

Description

technical field [0001] The invention relates to an intraoral scanning method, in particular to a direct three-dimensional scanning method for the physiological movement boundary of oral soft tissue. Background technique [0002] Although the existing intraoral scanning method can scan the soft tissue in the oral cavity, the main problems are: first, the three-dimensional intraoral scanner cannot obtain the functional boundary of the soft tissue; The third is that the efficiency of making an impression of the functional boundary of the oral soft tissue is low, and the success rate is low. Contents of the invention [0003] The purpose of the present invention is to provide a direct three-dimensional scanning method for the physiological motion boundary of oral soft tissue, which can avoid the limitation that intraoral three-dimensional scanners cannot obtain the functional boundary of soft tissue, and significantly improve the efficiency of manually making an impression of ...

AI Technical Summary

Problems solved by technology

[0002] Although the existing intraoral scanning method can scan the soft tissue in the oral cavity, the main problems are: first, the three-dimensional intraoral scanner cannot obtain the functional boundary of the soft tissue; The mold is not accurate; the third is that the efficiency of making an impression of the functional boundary of the oral soft tissue is low, and the success rate is low