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当前学科:口腔修复学
题目:
单选
以下是冠修复后出现食物嵌塞的主要原因,无关的是()
A . 邻接不良
B . 对颌牙有充填式牙尖
C . 咬合形态不良
D . 咬合平面与邻牙不一致
E . 冠边缘位于龈上
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