试题与答案

患者1年前上前牙外伤后,牙冠逐渐变黑,无明显疼痛,从病史看,该牙的诊断可能为()A.

题型:单项选择题

题目:

患者1年前上前牙外伤后,牙冠逐渐变黑,无明显疼痛,从病史看,该牙的诊断可能为()

A.根折

B.牙髓坏死

C.牙内吸收

D.牙外吸收

E.慢性根尖周炎

答案:

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参考答案:23(8402.9000)

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