目的:比较MTA和Dycal氢氧化钙用于年轻恒牙部分活髓切断术的疗效.方法:选择年轻恒牙意外露髓患者50例,随机分为两组.分别应用MTA和Dycal氢氧化钙作为盖髓剂进行年轻恒牙部分活髓切断术治疗,术后3、6、12个月复查,观察治疗效果,评价临床疗效.结果:术后3个月复查,比较两组之间近期临床疗效无统计学差异.术后12个月复查,比较两组之间远期临床疗效,MTA实验组明显高于对照组,两组有显著性差异.结论:应用MTA作为盖髓剂进行年轻恒牙部分活髓切断术治疗,疗效优于Dycal氢氧化钙.%Objective A comparison of the clinical effect between MTA and Dycal in partial vital pulpotomy of young permanent tooth.Methods Fifty cases for this study were collected from the patients whose young permanent tooth with accidentally exposed pulps.They were randomly divided into two groups.MTA was used in partial vital pulpotomy in the experimental group while Dycal was applied in the control group.At each recall (3～6 and 12months),the teeth were assessed clinically to evaluate clinical effect.Results After three months there was no statistically significant difference at the short-term clinical effect between the two groups.After twelve months the long-term clinical effect of the treatment with MTA was better than Dycal in partial vital pulpotomy of young permanent tooth.Conclusion MTA was effectively used in partial vital pulpotomy of young permanent tooth.Thus it is worth wide application.
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