Objective: to study clinical effect of chitosan as pulp capping agent on vital pulpotomy to deciduous teeth.
目的：研究壳聚糖作为乳牙活髓切断盖髓剂的临床疗效。
Methods:CHI, CH, GA and FC were chosen as the pulp capping agents for vital pulpotomy in primary teeth and 3 year follow up observation was performed.
方法：以CHI、CH、GA、FC四种材料作为乳牙深龋活髓切断的盖髓剂，进行临床远期疗效观察。
Methods: 72 teeth with exposed pulps in crown treated by pulpotomy to conserve the vital pulps and promote the growth of roots of teeth.
方法：72例外伤冠折露髓患牙，采用活髓切断术切断冠部牙髓，保留根髓活力，促进牙根发育。
Methods: 72 teeth with exposed pulps in crown treated by pulpotomy to conserve the vital pulps and promote the growth of roots of teeth.
方法：72例外伤冠折露髓患牙，采用活髓切断术切断冠部牙髓，保留根髓活力，促进牙根发育。
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