当前位置：在线题库搜索＞[单选题]全冠修复步骤中不可能对牙龈造成危害的是（ ）。的答案是什么？
问题：
[单选题]全冠修复步骤中不可能对牙龈造成危害的是（ ）。
A、肩台预备
B、排龈
C、全冠轴面外形修复
D、调改对牙合牙
E、邻接触状态
参考答案：
D
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