摘要
Abstract
Objective To investigate the restorations outcome of fibre post+composite resin+zirconia porcelain crown for patients with wedge-shaped defects(WSD)in posterior teeth after root canal therapy(RCT).Methods A total of 300 patients(300 teeth)with posterior WSD after RCT in our hospital(from August 2019 to August 2022)were selected and divided into group A(n=150)and group B(n=150)according to random number table method.Group A received composite resin+zirconia porcelain crown+fiber post repair treatment,while group B received porcelain fused to metal(PFM)+metal post core(MPC)repair treatment.The success rate of repair,the effect of repair,the periodontal health indicators before and after repair[gingival index(GI),plaque index(PLI),periodontal probing depth(PD)],and the levels of gingival creval fluid inflammatory factors[interleukin-6(IL-6),IL-10,tumor necrosis factor-α(TNF-α)]were compared between the two groups.Results The success rate of repair in group A was 97.33%(146/150),higher than 87.33%(131/150)of group B(P＜0.05).The edge tightness,surface texture and color matching of group A were better than those of group B(P＜0.05).After 6 months of repair,GI,PLI and PD in group A were lower than those in group B(P＜0.05).After one month of repair,the contents of TNF-α and IL-6 in gingival crevicular fluid of group A were lower than those of group B,and the contents of IL-10 were higher than those of group B(P＜0.05).Conclusions Compared with PFM+MPC in the treatment of posterior WSD patients after RCT,the application of composite resin+zirconia porcelain crown+fiber post repair is more helpful to improve the success rate and effect of repair,improve periodontal health,and cause less tissue trauma.关键词
楔状缺损/氧化锆烤瓷冠/龈沟液炎性因子Key words
wedge-shaped defect/zirconia porcelain crown/gingival crevicular fluid inflammatory factor
