Results Secondary infection of the root tubes , apex overfilled and peripheral mechanical injury were main failure factors in the treatment of root tubes .
结果根管治疗失败的主要原因为根管继发感染、根尖超填及根尖周机械损伤。
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 FLT3-TKD mutations are associated with treatment failure with tyrosine kinase inhibitors.
继发性FLT3 - TKD突变与酪氨酸激酶抑制剂治疗失败有关。
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