Importance

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Abstract

A method and apparatus for performing simulation display of the three-dimensional shapes and occlusal contact region of the upper and lower tooth rows at a high speed. A jaw movement sensor fits an examinee, and data on jaw movement of the examinee is acquired. An impression plate including a rigid flat plate having a top surface and a bottom surface each coated with an impression material inserted between the examinee's upper and lower tooth rows to which the jaw movement sensor is fitted, and the examinee performs a temporary occlusion. Impressions left on the impression material and a gauge mark provided on the rigid flat plate are measured by using a three-dimensional measuring instrument, whereby the three-dimensional shape data of the upper and lower tooth rows and gauge mark are acquired. Simulation display of movement of the aforementioned is performed at a time of temporary occlusion and jaw movement data.

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First Claim