Undivided plaster model screening method, screening fixture and manufacturing method of screening fixture

Abstract

The invention discloses an undivided plaster model screening method, a screening fixture and a manufacturing method of the screening fixture. The screening method includes the following steps:manufacturing an abutment fixture with different abutment adjacent plane angles according to screening test results of a historical plaster abutment model; using a scanner to scan the abutment fixture so as to determine the minimum scanning angle of the scanner; manufacturing undivided plaster model screening fixtures of corresponding angles according to the minimum scanning angle of the scanner; and screening undivided plaster models by using the undivided plaster model screening fixtures. The undivided plaster model screening fixtures can be manufactured according to the minimum scanning angle of the scanner; the undivided plaster models scanned by the scanner can be screened by utilizing the undivided plaster model screening fixtures; and therefore, the scanning success rate of the undivided plaster models can be increased, and the effects of scanning the undivided plaster models in batches can be realized.

Description

technical field [0001] The invention relates to the technical field of orthodontic devices, in particular to a screening method for a non-divided plaster model, a manufacturing method for a screening jig and the screening jig. Background technique [0002] At present, the scanning principles and mechanical structures of commonly used dental scanners are different, and the depth angles that can be scanned when scanning the model are also different. For non-divided plaster model scanning, the traditional method generally uses various scanners to scan separately, resulting in long scanning time and unable to quickly and accurately select the items that can be successfully scanned. [0003] The scanning depth of the scanner is mainly related to the angle between the lens and the distance from the lens to the scanned part. During the small batch test, it was found that in the process of scanning without dividing the plaster, the position that cannot be scanned clearly is mainly a...

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Problems solved by technology

[0004] In addition, the scannable boundary of the scanner can only be obtained through batch scanning tests. At the same time, it is also difficult to judge whether the undivided plaster can be scanned clearly by the naked eye, which makes it impossible to realize large-scale scanning design and undivided plaster models.

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