Objective To observe short-term clinical effect of root perforation repair using mineral trioxide aggregate(MTA).
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。
Many materials, such as amalgam, zinc oxide eugenol and mineral trioxide aggregate (MTA), are generally used.
通常许多材料可供使用，例如汞合金，氧化锌丁香酚和三氧化二锑聚集体(MTA)。
Many materials, such as amalgam, zinc oxide eugenol and mineral trioxide aggregate (MTA), are generally used.
通常许多材料可供使用，例如汞合金，氧化锌丁香酚和三氧化二锑聚集体(MTA)。
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