Conclusion: Metronidazole Tablets placed into the extraction wound of impacted teeth and pulpless teeth may provide prevention against dry socket.
结论：甲硝唑片置入阻生齿或无髓牙拔牙窝内可以起到预防干槽症的作用。
OBJECTIVE: To observe the effect of Iodoform-metronidazole gelatin sponge preventing dry socket.
目的：观察碘仿-甲硝唑明胶海绵预防干槽症的效果。
Then we compared occurrence of dry socket of the two groups.
对两组干槽症的发生率进行对比研究。
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