The present invention relates to a base member (3) in which a pair of base members (3) to which a tooth model (2) of an upper jaw and a lower jaw are respectively fixed and an end portion of a base member (3) are detachably fixed, And an upper fixing means (5) and a lower fixing means (6) rotatably journaled with each other, wherein a fixing hole (8) is drilled at the distal end portion of the base member (3) and the upper fixing means (5) and the lower fixing means (6) are provided on the upper fixing means (5) and the lower fixing means (6), respectively, for fixing the fixing hole (6) , An auxiliary fixing means (not shown) for assisting the fixing force by applying pressure in the direction of the fitting rod (9) to the base member (3) by pressurizing the end face of the distal end portion of the base member (3) 10) for adjusting the forward and backward movement between the tooth models, an interval adjusting means (19) for finely adjusting the shaft rotation angle between the tooth models, and a lateral movement adjusting means A tooth model articulator in which a rotating means (25) is realized.本発明は、上顎と下顎の歯模型(2)がそれぞれ固定される一対のベース部材(3)と、ベース部材(3)の末端部位がそれぞれ着脱可能に固定され、回動軸(4)によって互いに回動自在に軸結合される上部固定手段(5)および下部固定手段(6)とを含み、ベース部材(3)の末端部には固定孔(8)が穿設され、上部固定手段(5)と下部固定手段(6)には、末端部の固定孔(6)を嵌め合わせて固定する嵌合棒(9)がそれぞれ設けられ、上部固定手段(5)と下部固定手段(6)には、ベース部材(3)の末端部の端面を加圧してベース部材(3)に対して嵌合棒(9)の側方向に圧力を印加することで固定力を補助する補助固定手段(10)が設けられ、歯模型間の前後運動を調整する前後往復手段(16)、歯模型間の軸回転角度を微調整する間隔調整手段(19)、および歯模型間の横方向運動を調整する回転手段(25)が実現された、歯模型咬合器を提供する。
