PROBLEM TO BE SOLVED: To provide a holder of an abutment tooth model which reduces the risk of the breakage of an abutment tooth model.SOLUTION: The holder of an abutment tooth model to achieve the purpose includes a mounting 4, a mounting spherical body 12 disposed on the mounting 4, mounting plates 13, 14 which tightly hold the mounting spherical body 12, a mounting plate 15, and a mounting plate 16. An adjustment screw 22 of tightly-holding force for adjusting the tightly-holding force relative to the mounting spherical body 12 is provided between the mounting plates 13, 14. A part between the mounting plates 14, 15 constitutes a narrow part 28. A coil spring 38 for biasing the mounting plate 15 in the direction of the mounting plate 14 is provided between the mounting plates 15, 16 so that the mounting plates 14, 16 are integrated. A push-open handle 33 for pushing and opening the mounting plate 15 to the side of the mounting plate 16 is provided on the side of the mounting plate 13 of the mounting plate 15 so that the push-open handle 33 is integrated in the mounting plate 15.COPYRIGHT: (C)2012,JPO&INPIT【課題】本発明は、支台歯模型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を挟んだ取付板13、14と、取付板15と、取付板16とを備え、前記取付板13、14間には、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22を設け、前記取付板14、15間で、挟部28を構成し、前記取付板15、16間には、この取付板15を、前記取付板14方向に付勢するコイルバネ38を設け、前記取付板14、16を一体化するとともに、前記取付板15の前記取付板13側には、前記取付板15を取付板16側に押開く押開取手33を設け、この押開取手33は前記取付板15に一体化した。【選択図】図4
