四种盖髓剂用于乳牙深龋活髓切断的临床研究

Clinical study of vital pulpotomy for primary teeth with 4 kinds of pulp-capping agents

目的 :评价四种盖髓剂用于乳牙深龋活髓切断的疗效。筛选优良盖髓剂 ,为临床用药提供依据。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。并以对侧同名正常牙为自身空白对照 ,观察牙根吸收情况。结果 :CHI组、CH组、GA组和 FC组的临床成功率分别为10 0 %、87.5 %、91.4%、 78.1% ,但 4组间差别并无统计学意义。X线成功率分别为 97%、6 0 %、74.3%和5 6 .2 % ,CHI组的 X线成功率明显高于其他 3组 (P<0 .0 1)。 CHI组牙根无吸收或与对照牙同步吸收 ;CH组、GA组、FC组均见不同程度的异常根吸收。结论 :从研究结果分析 ,可以认为 CHI是四种盖髓剂中较为优良的盖髓剂 ,对乳牙深龋、牙髓病的治疗有实用价值。

Objective:To evaluate the effectiveness for vital pulpotomy in primary teeth with 4 kinds of pulp capping agents.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.The teeth in other side served as the controls.The root absorption was observed radiologically.Results:In the group of CHI,CH,GA and FC the clinical effective rate were 100%,87.5%,91.4% and 78.1%,the radiographical success rate were 97%,60%,74.3%and 56.2%,respectively.In the cases treated with CHI showed the highest success rate and significant difference was found among the four groups (P<0.01).No root absorption was found in CHI group.There was abnormal root absorption in the groups of CH,GA and FC.Conclusion:CHI may be considered as an ideal pulp capping agent for deep caries in primary teeth.