发明名称 A METHOD OF MAKING A TOOTH MOLD
摘要 A method is described for the making of a high definition tooth mold which includes the steps of scanning the surface of a model of a tooth, processing the data in a CAD/CAM computer, and using the processed data to fabricate a tooth mold. The scanning step involves subjecting a rotating tooth model to radiant energy, receiving and translating reflections of the radiant energy into electronic signals, and digitizing the signals into data of the three-dimensional surface locations of the tooth model. The processing step involves translating the data, editing the data, creating a three-dimensional surface pattern of the tooth model, evaluating the surface pattern and creating a new three-dimensional surface pattern until an acceptable high definition surface pattern is achieved by adding supplemental data or repeating the scanning step. Finally, creating a tooth path program used in the fabricating step to mill a tooth mold.
申请公布号 CA2155276(C) 申请公布日期 2005.11.01
申请号 CA19952155276 申请日期 1995.08.03
申请人 DENTSPLY INTERNATIONAL INC. 发明人 DEHOFF, BARRY D.;GRIM, CARLTON L.;LIU, ANDREW T. C.;MCGRAW, JEFFREY E.
分类号 A61C13/00;(IPC1-7):A61C13/08 主分类号 A61C13/00
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