目的观察采用三氧化矿物凝聚体（MTA）修补根管穿孔的短期临床效果。

Objective To observe short-term clinical effect of root perforation repair using mineral trioxide aggregate(MTA).

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目的观察采用三氧化矿物凝聚体（MTA）修补根管穿孔的短期临床效果。

Objective To observe short-term clinical effect of root perforation repair using mineral trioxide aggregate(MTA).

youdao