两种树脂充填重度氟牙症楔状缺损的临床评价

Clinical evaluation of different materials for repairing the dense defect of severe fluorosair diseases

目的 观察两种树脂在修复重度氟牙症楔状缺损的成功率.方法 将21 例重度氟牙症楔状缺损患者随机均分成A、B 两组,A 组采用3MFiltek. Z350 纳米树脂进行缺损修复;B 组采用可乐丽菲露AP-X 复合树脂充填修复.在充填修复治疗后6 个月和12 个月进行复查,观察充填成功率.结果 所有患者均获得12 ～ 18 个月（平均14.5 个月）的临床随访.6 个月复查时,A 组的修复成功率为93.3%（28/30）,B 组的修复成功率为88.2%（30/34）,差异无统计学意义（P 〉 0.05）.在12 个月时,A 组修复成功率显著高于B 组（90.0% vs . 73.5%）,差异有统计学意义（P 〈 0.05）.两组病例在各时间点复查均未出现继发龋.B 组在12 个月复查时出现牙髓病变3 例,A 组未发现牙髓病变病例.结论 在修复重度氟牙症楔状缺损时,3M Filtek. Z350 纳米树脂具有较高的成功率.

Objective To observe the success rate of different materials in repairing wedge-shaped defect of severe dental fluorosis. Methods Twentyonepatients with wedge-shaped defect of dental fluorosis were randomly divided into A and B groups. Group A was treated with 3M Filtek Z350 nano-resin fordefect repair; group B was treated with Coryaphilus AP-X composite resin. 6 months and 12 months after filling repair, the success rate of filling was observed.Results All patients were followed for 12 to 18 months（ mean 14.5 months）. 6 months when the review, the success rate of repair was 93.3%（ 28/30） in groupA and 88.2%（ 30/34） in group B, the difference was not statistically significant（ P 〉 0.05）. At 12 months, the success rate of group A was significantlyhigher than that of group B（ 90.0% vs . 73.5%）, the difference was statistically significant（ P 〈 0.05）. Two groups of patients at all time points in the reviewdid not appear secondary caries. In group B, there were 3 cases of pulp lesions at the 12-month follow-up and no cases of pulpitis were found in group A.Conclusion 3M FiltekTM Z350 nanostructured resin has a high success rate in the treatment of severe wedge-shaped defects of dental fluorosis.