徳島大学 教育・研究者情報データベース(EDB)

1. 大久保 由紀子(->個人[郡 由紀子])

   役割	任意
   貢献度	任意
   学籍番号	推奨

(英) The Development of Three-dimensional Analyzing System of Occlusal Tooth Contacts

(日) 咬合接触の3次元解析システムの開発

(英) This study provides the three-dimensional analyzing system of occlusal tooth contacts. The three-dimensional measurement of tooth surface was done by using the three-dimensional contact digitizer with a touch sensor probe. Tooth surfaces were digitized with 250 micrometer scanning grid. Jaw movement data were recorded by using the six-degree-of-freedom digital jaw movement tracking device (MM-JI). The three-dimensional morphology measurements of tooth surfaces were coupled with the jaw movement data and visualized on the graphic terminal. When the distance between the upper and lower occlusal facets was less than 200 micrometer, the reference point of measurements was set at the tooth contact site. Occlusal contacts at any jaw position in functional movements can be visualized on the graphic terminal. This system will be very useful for analysis of relationships between occlusal surface and jaw movement.

(日) 顎機能に調和した咬合面形態を探求するためには,顎運動と咬合面形態の関係を明らかにすることが必要である.そこで歯列の3次元形態データと任意点での解析が可能な6自由度顎運動データを用いてグラフィックターミナル上で顎運動を再現し,顎運動と咬合面形態および咬合接触状態の関係を3次元的に解析するシステムを開発した.本報では,システムの構成と精度ならびにこのシステムを応用した滑走運動時の咬合接触の3次元解析の1例について報告している.

1. 咬合接触(occlusal contact)
2. (英) three-dimensional morphology of tooth surface
3. 顎運動(jaw movement)