Anterior palatal plate with posterior palatal bar can not be used on the patient whose alveolar mucosa is not healthy.
缺牙区牙槽骨、黏膜条件较差者，应避免前腭板加后腭杆形式的大连接体。
Methods: 100 edentulous patients, who wore titanium palatal plate denture with two-step impression, were observed the clinical effect for 1 to 3 years.
方法：对100例无牙牙合患者采用二次印模法，取功能性印模，常规制作钛腭托全口义齿，并进行1 ~ 3年的临床疗效观察。
Results: Data of upper edentulous jaw models and a palatal metal plate of upper complete denture were obtained.
结果：获得无牙颌三维数据及上颌金属基托的数据文件。
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