上颌中切牙唇面置于切牙乳突中点前A.6?8mm B.7?9mm C.8?10mm D.9?11mm E.10?12mm

作者: tihaiku 人气: - 评论: 0

问题上颌中切牙唇面置于切牙乳突中点前

选项 A.6?8mm B.7?9mm C.8?10mm D.9?11mm E.10?12mm

答案 C

解析 [分析]切牙乳突是排列上颌中切牙的参考标志，上颌中切牙唇面置于切牙乳突中点前8?10mm。

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