Chambrone Luiz Armando, Chambrone Leandro
Division of Periodontics, Faculty of Dentistry, Methodist University of São Paulo, São Bernardo do Campo, Brazil.
J Int Acad Periodontol. 2006 Apr;8(2):47-52.
The amount of root coverage obtained after a graft procedure may be improved after the early phase of healing by a coronal displacement of the gingival attachment. The aim of this report is to present a clinical case of complete root coverage of a Miller's class IV recession achieved by creeping attachment subsequent to a laterally repositioned flap.
In 1995, a 44-year-old male patient was referred for a root coverage graft on the upper right central incisor. Clinical examination revealed that the upper right central incisor had a recession of 7 mm. The defect was classified as class IV according to Miller's classification of marginal tissue recession. It was decided that root coverage would be attempted using a laterally repositioned flap from the upper right lateral incisor and upper right canine. Sutures were removed ten days after surgery.
Four months after grafting, the amount of root coverage obtained was 4 mm. After an 8-year period, the previously denuded root surfaces were entirely covered by soft tissue. The marginal position of the gingiva appeared stable, the gingival tissue became firmly attached to the root surface and probing showed a shallow sulcular depth.
Several interesting observations were made after 8 years. In conclusion, the most significant and interesting finding of this report is that the amount of interdental papilla and marginal gingival tissue covering donor and recipient areas improved with time, providing an excellent aesthetic appearance.
移植手术后获得的牙根覆盖量,在愈合早期通过牙龈附着的冠向移位可能会得到改善。本报告的目的是呈现一例通过侧向复位瓣术后的渐进性附着实现米勒IV类牙龈退缩完全牙根覆盖的临床病例。
1995年,一名44岁男性患者因右上中切牙牙根覆盖移植前来就诊。临床检查发现右上中切牙牙龈退缩7mm。根据米勒边缘组织退缩分类,该缺损被归类为IV类。决定尝试使用右上侧切牙和右上尖牙的侧向复位瓣进行牙根覆盖。术后十天拆除缝线。
移植四个月后,获得的牙根覆盖量为4mm。八年后,先前暴露的牙根表面完全被软组织覆盖。牙龈边缘位置看起来稳定,牙龈组织牢固地附着在牙根表面,探诊显示龈沟深度较浅。
八年后有几个有趣的观察结果。总之,本报告最显著和有趣的发现是,随着时间的推移,覆盖供区和受区的牙间乳头和边缘牙龈组织量有所改善,呈现出极佳的美观效果。