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当前学科:内科学
题目:
单选
畸形中央尖折断引起牙髓或根尖周病变时,为保存患牙并促使牙根发育,可采用
A . A.牙髓塑化治疗
B . B.干髓术
C . C.牙髓切断术
D . D.根尖诱导成形术
E . E.盖髓术
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