Secondary caries occurs on the edge of the restoration. It is the major reason for replacing restoration and causing failure of treatment in clinic.
继发龋是龋病治疗后再度发生的龋损，是迄今为止临床上充填体更换和失败最常见的原因。
Secondary caries occurs on the edge of the restoration. It is the major reason for replacing restoration and causing failure of treatment in clinic.
继发龋是龋病治疗后再度发生的龋损，是迄今为止临床上充填体更换和失败最常见的原因。
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