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临床观察戴义齿后部分患者的口腔粘膜组织有不同程度和不同类型的改变。Nater Ringsdortct等对其因素描述过不同的见解,现根据自1956年～1980年临床观察850例患者戴义齿后口腔粘膜组织改变的
Clinical observation of denture patients after partial oral mucosal tissue with varying degrees and different types of changes. Nater Ringsdortct and other factors described in their different opinions, is based on clinical observation since 1956 to 1980, 850 patients with denture oral mucosa after the change