上皮下结缔组织移植术治疗烤瓷冠修复后引起的牙龈退缩

Treatment of gingival recessions of teeth with ceramic full crown by autogenous connective tissue graft

目的:评价采用上皮下结缔组织移植技术治疗烤瓷冠修复后引起的牙龈退缩的疗效.方法:选取20例全身健康的患者,年龄31～58岁,接受治疗的患牙32颗.牙位选择上下颌前牙区及前磨牙区.研究对象的龈退缩的选择标准是:冠根方向烤瓷冠边缘外露,牙根面暴露2～3mm,龈退缩Miller分级为Ⅰ～Ⅱ级,唇颊面牙周探诊深度≤4mm,牙根无活动性龋或修复体.采用上皮下结缔组织移植技术覆盖根面.结果:上皮下结缔组织移植技术可以增加退缩牙龈的高度和厚度,术后根面覆盖率为85.1%.结论:采用上皮下结缔组织移植技术治疗烤瓷冠修复后牙龈退缩疗效良好,解决了患者牙龈的美学和功能问题.

PURPOSE: The aim of this clinical study was to evaluate gingival recession of teeth with ceramic full crown treated with subepithelial connective tissue grafts. METHODS: In 20 systemically healthy, whose ages ranging from 31 to 58 years, 32 teeth with ceramic full crown developed gingival recession. Selection of gingival recession defects was based upon the following criteria: A minimum of 2mm of root surface exposure in coronal-apical height. Miller class Ⅰ and Ⅱ recession. Interproximal and labial probing depth≤4mm. No active caries or restorations on the toot surfaces. Gingival recession were treated with subepithelial connective tissue grafts technique. RESULTS: The results indicated that subepithelial connective tissue grafts increased the height of gingival recession (GR) and gingival thickness (GT) ,the mean percentage of root coverage (RC) was 85.1%. CONCLUSION: These results suggest that subepithelial connective tissue grafts were able to successfully treat gingival recession defects. Moreover, the results has significant clinical benefit for aesthetics and treatment outcomes.