釉质内肩台预备加直接树脂充填修复前牙切端切角缺损的临床效果研究

Study on the Clinical Effect of Enamel Internal Shoulder Preparation and Direct Resin Filling to Repair the Incisional Angle Defect of Anterior Teeth

目的探讨前牙切端切角缺损(AID)采取釉质内肩台预备联合树脂充填(EPR)的应用价值与疗效。方法研究纳入2020年1—10月50例AID患者共计60颗患牙,随机分组(各30颗患牙),对照组应用釉质短斜面牙体制备,观察组应用釉质内肩台牙体制备,两组均采取树脂充填修复,观察两组缺损牙体疗效、修复满意度、缺损牙体修复情况。结果术后3个月,观察组、对照组疗效分别是96.97%、80.00%,差异无统计学意义(P>0.05);术后6个月,观察组、对照组疗效分别是96.67%、70.00%,差异有统计学意义(χ^(2)=8.960,P<0.05);术后12个月,观察组、对照组疗效分别是80.00%、46.67%,总疗效差异有统计学意义(P<0.05);但观察组充填体脱落情况显著较对照组少,差异有统计学意义(P<0.05);术后,两组缺损牙体修复情况均显著好转,观察组在固位性、牙体咀嚼功能等方面修复情况更优,差异有统计学意义(P<0.05);术后,两组缺损牙体修复满意度均存在显著差异,相比于对照组,观察组在舒适、美观、固位等方面满意度更高,差异有统计学意义(P<0.05)。结论AID采取EPR术式修复缺损牙体的应用价值与疗效显著,值得推广应用。

Objective To investigate the application value and curative effect of enamel internal shoulder preparation combined with resin filling(EPR)for anterior incisor defect(AID).Methods The research included 50 patients with AID from January 2020 to October 2020,a total of 60 teeth were randomly divided into groups(30 teeth for each).The control group was prepared with enamel short bevel teeth,and the observation group was used with enamel internal shoulder teeth.The two groups were prepared by resin filling and restoration,and the curative effect,satisfaction degree of restoration,and restoration of defective teeth were observed in the two groups.Results At 3 months postoperatively,the curative effect of observation group and control group were 96.97%and 80.00%,respectively.The difference was not statistically significant(P>0.05);at 6 months postoperatively,the curative effect of observation group and control group was 96.67%,70.00%,the difference was statistically significant(χ^(2)=8.960,P<0.05);12 months after surgery,the observation group and control group had 80.00%and 46.67%curative effects,respectively.There was statistically significant difference in the total curative effect(P<0.05);but the filling body fall off of the observation group was significantly less than that of the control group,the difference was statistically significant(P<0.05);postoperatively,the restoration of defective teeth in the two groups improved significantly,and the observation group was restored in terms of retention and chewing function,the difference was statistically significant(P<0.05);after surgery,there were significant differences in satisfaction with the restoration of defective teeth between the two groups.Compared with the control group,the observation group had better satisfaction in terms of comfort,aesthetics,retention,etc.,the difference was statistically significant(P<0.05).Conclusion The application value and curative effect of AID using EPR to repair tooth defect are significant,and it is worthy of popularization and application.