单固位体悬臂式粘接桥修复个别前牙缺失的36个月临床效果观察

Single⁃retainer cantilever resin⁃bonded bridge in replacing single anterior tooth:36 months clinical observation

目的:探讨分析单固位体悬臂式粘接桥在个别前牙缺失修复中的临床修复效果。方法:20例个别前牙缺失的患者用单固位体悬臂式粘接桥进行修复,分别在修复后6、12、24、36个月用美国公共健康协会(APHA)制定的修复临床评价标准对修复体进行评价,同时记录修复前及修复后各个时间点基牙及其邻牙的牙周指标,观察修复体临床修复效果,分析修复体对基牙牙周状况的影响,并对患者满意度视觉模拟评分法(VAS)量化分析。结果:20例单固位体悬臂式粘接桥在修复后36个月期间未发生脱粘接及折裂现象,修复后24个月,1例修复体边缘着色达到B级,其余均为A级;修复体完成36个月,3例修复体边缘着色达到B级,其余为A级;患者对修复效果满意度为100%,患者对缺牙区状态的满意度在修复前后差异有统计学意义(P<0.05)。修复后基牙各时间点牙周指标较修复前均无显著性差异(P>0.05)。结论:个别前牙缺失的患者,用单固位体悬臂式粘接桥进行修复,可获得较为稳定的临床修复效果。

Objective:To observe and analyze the clinical effect of single⁃retainer cantilever resin⁃bonded bridge in replacing single anterior tooth missing.Methods:Twenty single⁃retainer cantilever resin⁃bonded bridges were fabricated for single anterior tooth miss⁃ing,and they were evaluated 6,12,24 and 36 months after restoration using the clinical evaluation criteria set by the American Public Health Association(APHA).At the same time,the periodontal indexes of the abutment tooth and the adjacent teeth before and after restoration were recorded to analyze the influence of the restoration on periodontal condition of the abutment teeth,and the VAS of pa⁃tient satisfaction was quantified.Results:In 20 cases of single retainer cantilever resin⁃bonded bridge,no debonding or fracture oc⁃curred during 36 months of repair period.1 case was classified as grade B due to edge coloring and the rest were graded A 24 months after repair;36 months after the completion of the restoration,3 cases were classified as grade B due to edge coloring,and the rest were grade A.The patients'satisfaction with the restoration effect was 100%,and there was a significant difference in patients'satisfac⁃tion with the status of missing tooth area before and after restoration(P<0.05).And there was no significant difference in the periodon⁃tal indexes of the abutment tooth before and after restoration(P>0.05).Conclusions:For patients with single anterior tooth missing,using a single retainer cantilever resin⁃bonded bridge for restoration can obtain a relatively stable restoration results.