The Noncontact Single CCD ScanningMeasurement System For Crucial Margin Curve During Tooth Restorations

碩士 === 大同大學 === 機械工程學系(所) === 96 === The dentists always desire to finish the processes for tooth restorations as quickly as possible for the sake of the market need. Because the processes for tooth restorations put emphasis upon efficiency and accuracy, the techni- que of false tooth design/fabrica...

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Bibliographic Details
Main Authors: Ti-Yi Wang, 王迪藝
Other Authors: Ching-Chih Tai
Format: Others
Language:zh-TW
Published: 2008
Online Access:http://ndltd.ncl.edu.tw/handle/75263133305257113622
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Summary:碩士 === 大同大學 === 機械工程學系(所) === 96 === The dentists always desire to finish the processes for tooth restorations as quickly as possible for the sake of the market need. Because the processes for tooth restorations put emphasis upon efficiency and accuracy, the techni- que of false tooth design/fabrication becomes so far a tendency towards dig- ital dentistry instead of traditional dental cast. It’s not necessary for complete tooth geometry model during tooth restorations. It only crucial margin curve of tooth. In this research , will develop noncontact single CCD scanning measurement system for crucial margin curve during tooth restorations. The measurement system based on a modified simulated triangular algorithm includes a vertical moveable CCD camera. The cavity on the traditional dental cast-impression tray is used to measure and model with crucial margin curve of tooth and satisfied demand , reach precision 0.01mm needed in the medical field of tooth. Systematic quantity examines so the precision demand that this system can not reach the medical field of tooth of the precision yet in 0.136mm at present.