Methods 311 teeth of 293 cases which were suitable to be sealed as varied time 1~ 12 days were treated with arsenous oxide to observe the condition of pulp deactivation and percussion pain when return.

  • 方法对293例、311颗适合失活的恒磨牙进行三氧化三砷失活,封药时间为1~12d不等,观察根髓失活情况及患牙复诊时叩痛变化情况。

  • 互联网摘选 2025-01-19 23:24:48

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