PROBLEM TO BE SOLVED: To reduce the breakage risk of a holder of an abutment tooth model.SOLUTION: The holder of an abutment tooth model includes: an attaching table 4 an attaching sphere 12 arranged on the attaching table 4 attaching plates 13 and 14 disposed opposite to a horizontal direction while holding the attaching sphere 12 and an attaching plate 15 disposed on the other side of the attaching plate 13 of the attaching plate 14, wherein holding force adjusting screws 21 for adjusting holding force to the attaching sphere 12 are equipped at the attaching plates 13 and 14, a fulcrum 27 is equipped at the middle point of the attaching plate 15, a narrow section 30 is equipped on a front end side than the fulcrum 27 an opening and closing operation section 31 is equipped on a rear end side, and a coil spring 38 biasing the narrow section 30 of the attaching plate 15 toward a direction of the attaching plate 14 is equipped on a front end side than the fulcrum 27 of the attaching plate 15.COPYRIGHT: (C)2012,JPO&INPIT【課題】本発明は、支台歯模型の保持具に関するもので、支台歯模型の破損リスクを低減することを目的とするものである。【解決手段】そしてこの目的を達成するために本発明は、取付台4と、この取付台4に配置した取付球体12と、この取付球体12を挟んで水平方向に対向配置させた取付板13、取付板14と、前記取付板14の前記取付板13とは反対側に、取付板15とを備え、前記取付板13、取付板14には、前記取付球体12に対する挟持力を調整する挟持力調整ネジ21とを設け、取付板15の中部には支点27を設け、この支点27よりも先端側には挟部30を設け、後端側には開閉操作部31を設け、前記取付板15の挟部30を、前記取付板14方向に付勢するコイルバネ38を、前記取付板15の支点27より先端側に設けた。【選択図】図4
