无髓变色牙漂白治疗30例临床分析  

Bleaching of non-vital discolored tooth:clinical analysis of 30 cases

作　　者：何爱民[1,2] 柳七零[1,2] 汪涌[1,2] 

机构地区：[1]合肥市口腔医院 [2]安徽医科大学合肥口腔临床学院口腔内科,安徽合肥230001

出　　处：《上海口腔医学》2010年第2期129-132,共4页Shanghai Journal of Stomatology

基　　金：安徽省合肥市科技局重点科研项目[合科合同(卫)字2007(1016)号]~~

摘　　要：目的:评价无髓变色牙漂白治疗的效果。方法:对30例33颗无髓变色、牙冠完整的前牙使用15%过氧化脲进行诊间和夜间漂白相结合、冠内和冠外联合漂白治疗,并与以30%过氧化氢冠内漂白组作为对照;同时,对实验组有效病例在治疗后1a复查,应用SPSS17.0软件包对所得数据进行统计学分析。结果:15%过氧化脲联合漂白组疗效显著高于30%过氧化氢冠内漂白组,2组差异有统计学意义。1a后复查牙颜色的色阶数值变化,无统计学意义。结论:15%过氧化脲进行诊间和夜间漂白相结合、冠内和冠外联合漂白,能有效治疗无髓变色牙。PURPOSE：The purpose of this study was to evaluate the bleaching efficacy of non-vital discolored tooth. METHODS：Thirty-three non-vital discolored anterior teeth with intact crowns from 30 patients were included in this clinical study. Bleaching treatment was performed using a combination of intracoronal and extracoronal applications of 15% carbamide peroxide. Intracoronal bleaching with 30% hydrogen peroxide was used as control group. The effective cases of the experimental group were reexamined one year later. Statistical analysis of all data was performed with SPSS 17.0 software package. RESULTS：Combined therapy with intracoronal and extracoronal applications of 15% carbamide peroxide presented higher bleaching efficacy than intracoronal applications of 30% hydrogen peroxide alone,the difference was significant. But the color shade change one year later was not significant. CONCLUSION：A combination of intracoronal and extracoronal applications of 15% carbamide peroxide was an effective bleaching technique for non-vital discolored teeth.

关 键 词：过氧化脲 联合漂白 无髓变色牙 

分 类 号：R781.05[医药卫生—口腔医学]