画像解析システムの歯科補綴学への応用 : 顔および中切歯の計測

概要

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The profiles of face and central incisor tooth surface are known to be similar. This study evaluated the accuracy of an imaze analyzing device and ctuantitatively analyzed the face and tooth profiles. The device consisted of a CCD camera, Shade Corrector, Video recorder, Image Analyzer (LA500, PIAS Co.) and a microcomputer (PC-9801 VX2, NEC Co.). Squares (150×l50mm and 10×10mm) and a metal coin (diameter 20mm) were used for evaluation of the system ability. The procedure for the measurement were : 1) the squares and the coin were measured to obtain values for areas and perimeter lengths, and 2) study models of 6 volunteers, 1 female and 5 males, between the age of 25 and 30, were taken measurement on their face and tooth profiles. The average error rate was less than 5% on the squares and coin. The average ratios of the long axes of face and tooth was 1/19, the short axes 1/16.
社団法人日本補綴歯科学会の論文
1988-10-01