Zucchelli Giovanni, Parenti Serena Incerti, Ghigi Gino, Bonetti Giulio Alessandri
Department of Peridontology, University of Orthodontics, University of Bologna, Bologna, Italy.
Eur J Esthet Dent. 2012 Autumn;7(3):266-80.
In this article, the interdisciplinary management of an isolated-type recession defect in a severely compromised mandibular incisor of a young post-orthodontic patient is described. The prognosis of root coverage surgery was very questionable and unpredictable due to the severe root malposition (III Miller class gingival recession). The treatment plan consisted of: (1) interproximal enamel reduction to gain space within the dental arch, (2) orthodontic repositioning of the root of the affected tooth within the alveolar bone and (3) root coverage mucogingival surgery. Clinical re-evaluation 7 months after fixed orthodontic treatment revealed major improvements in the root coverage prognosis due to the resolution of root malposition and de novo formation of keratinized tissue apical to the root exposure (I Miller class gingival recession). A subepithelial connective tissue graft was performed as a root coverage surgical procedure. Clinical examination 1 year after surgery revealed complete root coverage, good color blending with adjacent soft tissue and an increase in facial gingival thickness. Successful periodontal and esthetic outcomes can be accomplished after the combined orthodontic-periodontal treatment of a severely mucogingivally compromised tooth.
本文描述了一位正畸治疗后的年轻患者严重受损的下颌切牙孤立型退缩缺损的多学科管理。由于严重的牙根错位(III类米勒牙龈退缩),牙根覆盖手术的预后非常值得怀疑且不可预测。治疗方案包括:(1)邻面釉质减薄以在牙弓内获得间隙,(2)将患牙牙根在牙槽骨内进行正畸重新定位,以及(3)牙根覆盖的膜龈手术。固定正畸治疗7个月后的临床重新评估显示,由于牙根错位的解决以及牙根暴露根尖处角化组织的新生形成(I类米勒牙龈退缩),牙根覆盖预后有了显著改善。采用上皮下结缔组织移植作为牙根覆盖手术。术后1年的临床检查显示牙根完全覆盖,与相邻软组织颜色融合良好,面部牙龈厚度增加。对于严重膜龈受损的牙齿,联合正畸-牙周治疗后可实现成功的牙周和美学效果。