本文目的是使用一种液压传感器来对两种粘固剂固位效果作出评价。器材及方法选择三位缺失第三磨牙的患者为受试者,他们的腭穹窿发育良好,为每位受试者制作一个上颌丙烯酸酯基托,其后缘位于颤动线之前,均未作后腭封闭沟,三个基托的固位均良好且密合。 The purpose of this paper is to use a hydraulic pressure sensor to evaluate the retention of both cements. Equipment and Methods Three patients with missing third molars were selected as subjects and their palatal vaults developed well. One upper maxillary acrylate base was made for each subject and the posterior edge was located before the fibrillation line, Palatal closed groove, the three base of the retention are good and close.