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구강 스캐너를 사용한 고정성 보철 수복 시 고려사항

Use of Intraoral Scanners for Fabricating Fixed Restoration: Clinical Tips

대한치과의사협회지 2019년 57권 9호 p.524 ~ 528
윤형인 ( Yoon Hyung-In ) - 서울대학교 치의학대학원 치과보철학교실

Abstract


With the advances of CAD-CAM (computer-aided design and computer-aided manufacturing) technology, the field of modern clinical dentistry has been dramatically changed. The first step in the digital workflow for tooth-supported dental prosthesis is a data acquisition with intraoral digital or conventional impression techniques. For the accuracy of intraoral digital impression data, the basic principles of conventional impression should be applied. It is necessary to obtain a good visibility with properly-dried field and well-exposed margin of the prepared abutment. Currently, the equi- or supra-gingival finish line can be recommended as an indication for intraoral digital impression. The scan data are generally exported to '.stl' file format, which has only morphological information of black and whitem while '.obj' file format can store data on color and texture.

키워드

computer-aided design; intraoral scanner; digital impression; tooth preparation
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