1. AIM: to compare the drug closing effect of calcium hydroxide or FC in pulpectomy and root canal therapy in rat.
目的:比较氢氧化钙和甲醛甲酚(FC)对去髓术和根管治疗术的封药效果。
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2. METHODS: 1 of the 6 first mandibular molars on the right side with normal morphology in vitro was selected for pulpectomy, which was the best in density and near to clinical requirement in morphology.
3. METHODS: 1 of the 6 first mandibular molars on the right side with normal morphology in vitro was selected for pulpectomy, which was the best in density and near to clinical requirement in morphology.