髓腔进入和冠部预备时，下列器械用于:8# 或 10#K 锉A.去除腐质和修复体，穿通髓腔B.揭净髓室顶C.修整髓室侧壁D.定位根管口 ...

作者: rantiku 人气: - 评论: 0

问题髓腔进入和冠部预备时，下列器械用于: 8# 或 10#K 锉 A.去除腐质和修复体，穿通髓腔 B.揭净髓室顶 C.修整髓室侧壁 D.定位根管口 E.建立根管通路

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答案 E

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