The ultimate goal of any periodontal plastic surgery aimed to treat gingival recession is predictable recession coverage and esthetic outcome. Due to the post-operative morbidity and discomfort related to subepithelial connective tissue graft, various other methods have been introduced including the use of fetal membranes. The fetal membranes have shown promising results in medicine and recently in the field of regenerative dentistry and could possibly become a viable alternative to autogenous grafts. This article reports a series of cases of Miller’s class I gingival recession that were treated by chorion membrane combined with coronally advanced flap and evaluated using objective variables for post-operative healing and esthetics. Nine systemically healthy subjects with ten Miller’s class I buccal gingival recession were included in the study. Clinical parameters were recorded at baseline, 3 months and 6 months post-surgery; wound healing index (WHI) was recorded one week post-surgery. At the end of 6 months, the percentage of root coverage and the root coverage esthetic score (RES) were calculated. The results showed statistically significant (p < 0.05) improvement in most of the parameters. The mean percentage of root coverage obtained was 62.20 ± 21.99% ranging from 33.3 to 100%. The WHI showed excellent healing score and RES assessed at the end of six months showed superior esthetic results. The chorion membrane along with coronally advanced flap is a predictable procedure for root coverage with better post surgical healing and superior esthetics.

中文翻译：

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客观评价使用绒毛膜的根覆盖手术的愈合和美学效果：一个病例系列。

任何旨在治疗牙龈退缩的牙周整形手术的最终目标是可预测的退缩范围和美学效果。由于与上皮下结缔组织移植相关的术后发病和不适，已经引入了多种其他方法，包括使用胎膜。胎膜在医学领域和再生牙科领域已显示出令人鼓舞的结果，并可能成为自体移植物的可行替代品。本文报道了一系列病例，这些病例经绒毛膜联合冠状动脉前移皮瓣治疗，并使用客观变量评估了米勒I类牙龈退缩的情况，以进行术后愈合和美观。这项研究包括9名系统性健康受试者，其中有10例Miller'sⅠ类颊齿龈退缩。在基线，手术后3个月和6个月记录临床参数；术后一周记录伤口愈合指数（WHI）。在6个月末，计算根覆盖率和根覆盖美学分数（RES）。结果显示具有统计意义（p  <0.05）大多数参数的改善。获得的根部覆盖率的平均百分比为62.20±21.99％，范围为33.3至100％。WHI表现出极佳的愈合评分，六个月末评估的RES表现出优异的美学效果。绒毛膜和冠状动脉前皮瓣是根部覆盖的可预见程序，具有更好的术后愈合能力和出色的美学效果。