优韧瓷在青少年第一恒磨牙大面积缺损中的应用

Application of Composite Resin Nanoceramics in Massive Defects of Teenagers'First Permanent Molars

目的:分析比较复合树脂充填与Lava^TM Ultimate优韧瓷嵌体修复青少年第一恒磨牙大面积缺损的临床效果。方法:将在我院治疗的62名患儿84颗大面积缺损的第一恒磨牙随机分成AB两组,A组采用Lava^TM Ultimate优韧瓷嵌体在计算机辅助设计/计算机辅助制作(CAD/CAM)下修复,B组采用复合树脂充填修复,定期复查,分别在6个月和12个月后参照改良FDI标准,对两组的修复效果进行评价。结果:6个月后两组各评价指标均无显著差异(>0.05);12个月后AB两组表面染色、边缘染色、边缘适应性和术后敏感性比较差异无统计学意义(P>0.05);但在表面光泽度、折裂与保留以及龋齿再发、腐蚀、脱落方面,A组效果优于B组,差异有统计学意义(P<0.05)。结论:对于有大面积缺损的第一恒磨牙,Lava^TM Ultimate优韧瓷在抗折,表面光泽度和再发龋方面的远期效果优于树脂,是一种良好的修复材料,值得大力推广。

Objective:To compare the clinical effect of filling with composite resin and Lava^TM Ultimate composite resin nanoceramics inlay in repairing children first permanent molars with massive defects.Methods:The first permanent molars of 84 massive defects in 62 children treated in our hospital were randomly divided into two groups:group A was repaired with Lava^TM Ultimate composite resin nanoceramics inlay under CAD/CAM,group B was repaired with composite resin and regularly followed up.The effect of the two groups was evaluated with reference to the modified FDI standard after 6 and 12 months,respectively.Results:Six months later,there was no significant difference between two groups(P>0.05).After 12 months,there were no significant differences in surface staining,margin staining,marginal adaptation,and postoperative sensitivity between two groups(P>0.05),but the effect of group A was superior to that of group B in comparison of surface luster,fractures,retention,recurrence of caries,erosion,and exfliation(P<0.05).Conclusion:For the first permanent molars with severe defects,the long-term effect of Lava^TM Ultimate excellent-toughness porcelain is superior to resin in terms of fracture resistance,surface luster,and recurrence of caries,and is a good restorative material,which deserves to be vigorously promoted.