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

A three-dimensional scanning and motion boundary technology, applied in the field of intraoral scanning, can solve the problems of low success rate, inaccurate impression of oral soft tissue functional boundaries, and the inability of intraoral 3D scanners to obtain soft tissue functional motion boundaries, so as to achieve the effect of improving efficiency.

Active Publication Date: 2019-04-16
PEKING UNIV SCHOOL OF STOMATOLOGY
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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

Method used

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Embodiment Construction

[0013] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0014] The direct three-dimensional scanning method of a kind of oral soft tissue physiological movement boundary of the present invention has the following steps:

[0015] 1) For the remaining dentition or the edentulous alveolar ridge top and alveolar ridge side, use an intraoral three-dimensional scanner to directly scan the area that does not move during the functional movement of the oral soft tissue, and obtain data D1;

[0016] 2) 3D printing individual pallets based on 3D scanning data;

[0017] 3) Perform edge shaping with individual trays and soft tissue edge shaping materials;

[0018] 4) After the plastic material is hardened, directly scan the area covered by the plastic material with an intraoral 3D scanner to obtain data D2;

[0019] 5) Take the area covered by the plastic material except the edge as the common area, r...

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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 ...

Claims

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Application Information

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IPC IPC(8): A61B5/00A61C9/00B33Y80/00B33Y50/00
CPCA61B5/0088A61C9/0053B33Y50/00B33Y80/00
Inventor 孙玉春周永胜王勇邓珂慧曹悦
Owner PEKING UNIV SCHOOL OF STOMATOLOGY
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