Results There was a statistically significant difference of microleakage between the Gallium Alloy and GK High Copper Amalgam group after 28 days' immersion in 1% Methylene Blue solution (P<0.01).
结果镓合金组根尖充填后2 8天时的微渗漏情况明显优于GK高铜银汞合金组，差异有显著性意义（P< 0 .0 1 ）。
The high-copper amalgam showed medium cytotoxicity.
高铜银汞合金表现为中度细胞毒性。
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