P-7 オプティカルトラッカーを用いたインプラント埋入位置姿勢計測法(第3報) : 従来法との印象精度の比較(研究奨励賞応募ポスター発表)

概要

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Conventional impressions and definitive cast method to estimate implant position have distortions to fabricate superstructure. To minimize these distortions, we have to separate, splint in the oral cavity and solder the metal frame of a superstructure. In the present study, we are developing three-dimensional optical measurement system using optical tracker instead of current impression methods. The purpose of this study is to compare the impression accuracy of proposed method with a conventional one. We measured distortions of center of gravity of implants using three-dimensional scanner and CAD software. The distortion of the proposed method was 185±6μm, while that of conventional method was 420±139μm. Further improvement of jig for measurement is under progress.
2010-03-25