[Long-term stability of periodontal root coverage procedures for gingival recession].

Gingival recession could result in root exposure, dental hypersensitivity and poor aesthetics. It has been demonstrated that varieties of root coverage procedures can significantly improve gingival recession in short-term (≤6 months), of which coronally advanced flap combined with connective tissue graft is the gold standard technique for treatment of gingival recession. It could obtain the optimally complete root coverage and maintain long-term stability (≥2 years). However, clinical knowledge about the long-term effectiveness of the other alternative graft materials remain very limited. Based on the existing clinical evidence, this article reviews coronally advanced flap, coronally advanced flap combined with connective tissue graft or alternative graft materials, with particular attention to the long-term stability of them, in order to provide reference for the design of further clinical trials and the plan of clinical treatments.牙龈退缩可导致牙根暴露、牙齿敏感、影响美观。已有多种根面覆盖术经临床证据证实在短期内（≤6个月）可显著改善牙龈退缩，其中冠向复位瓣术联合结缔组织移植的根面覆盖术是治疗牙龈退缩的金标准，最可能获得完全根面覆盖的效果，并保持长期稳定性（≥2年），而其他自体结缔组织生物替代材料的长期疗效仍有待观察。本文基于现有临床证据，对单独的冠向复位瓣术、联合结缔组织移植或生物替代材料的冠向复位瓣术进行综述，并重点关注各类手术的长期稳定性，以期为临床试验设计和治疗方案选择提供参考。.