树脂嵌体和充填法治疗后牙Ⅱ类洞所致食物嵌塞的临床观察

Clinical effect of resin inlay and resin filling in the treatment of posterior teeth food impaction caused by classⅡcavity

目的探讨树脂嵌体治疗后牙Ⅱ类洞引发的食物嵌塞的临床效果。方法收集后牙Ⅱ类洞致食物嵌塞病例共140颗牙,将患牙随机平均分为两组:树脂嵌体组70颗牙,树脂充填组70颗牙;1年后观察临床疗效,按改良美国修复体临床评价标准(USPHS)对修复体进行评价。结果复合树脂嵌体修复组成功率(95.46%),高于复合树脂充填组(79.37%),差异有统计学意义(P<0.05),嵌体组3例缺陷,主要为1例边缘着色、2例边缘完整性破坏;充填组11例缺陷,主要为2例边缘着色、3例边缘完整性破坏、2例磨耗、4例邻接不良伴食物嵌塞或牙龈炎,2例折裂失败。结论相比树脂充填,树脂嵌体能更好的修复Ⅱ类洞所致的食物嵌塞病例。

Objective To evaluate the clinical effect of posterior teeth food impaction because of classⅡcavity treated with resin inlay. Methods A total of 140 teeth with posterior teeth food impaction caused by bad proximal contact were averagely randomly divided into two groups, 70 teeth treated with resin inlay and 70 teeth treated with resin filling. The clinical effect was analyzed with modified USPHS 1 year later. Results The success rate in resin inlay group（95.46%） was superior to resin filling group（79. 37%） ,with significant difference（P%0.05）. The resin inlay group had 3 defect cases with 1 edge coloring and 2 edge incomplete. While the resin filling group had 11 defect cases with 2 edge coloring,3 edge incomplete,2 abrasion,4 bad proxima contraction and 2 cases filled with fracturing. Conclusion Resin inlay can better restore food impaction with class Ⅱcavity compared with resin filling.