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生物可吸收胶原膜与结缔组织移植治疗局限性牙龈退缩的比较评价：一项临床研究。

Comparative evaluation of a bioabsorbable collagen membrane and connective tissue graft in the treatment of localized gingival recession: A clinical study.

作者信息

Babu Harsha Mysore, Gujjari Sheela Kumar, Prasad Deepak, Sehgal Praveen Kumar, Srinivasan Aishwarya

机构信息

Department of Periodontology, Dayanandasagar College of Dental Sciences, Bengaluru, India.

出版信息

J Indian Soc Periodontol. 2011 Oct;15(4):353-8. doi: 10.4103/0972-124X.92569.

DOI:10.4103/0972-124X.92569
PMID:22368359
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3283932/
Abstract

BACKGROUND

Gingival recession (GR) can result in root sensitivity, esthetic concern to the patient, and predilection to root caries. The purpose of this randomized clinical study was to evaluate (1) the effect of guided tissue regeneration (GTR) procedure using a bioabsorbable collagen membrane, in comparison to autogenous subepithelial connective tissue graft (SCTG) for root coverage in localized gingival recession defects; and (2) the change in width of keratinized gingiva following these two procedures.

MATERIALS AND METHODS

A total of 10 cases, showing at least two localized Miller's Class I or Class II gingival recession, participated in this study. In a split mouth design, the pairs of defects were randomly assigned for treatment with either SCTG (SCTG Group) or GTR-based collagen membrane (GTRC Group). Both the grafts were covered with coronally advanced flap. Recession depth (RD), recession width (RW), width of keratinized gingiva (KG), probing depth (PD), relative attachment level (RAL), plaque index (PI), and gingival index (GI) were recorded at baseline, 3 and 6 months postoperatively.

RESULTS

Six months following root coverage procedures, the mean root coverage was found to be 84.84% ± 16.81% and 84.0% ± 15.19% in SCTG Group and GTRC Group, respectively. The mean keratinized gingival width increase was 1.50 ± 0.70 mm and 2.30 ± 0.67 mm in the SCTG and GTRC group, respectively, which was not statistically significant.

CONCLUSION

It may be concluded that resorbable collagen membrane can be a reliable alternative to autogenous connective tissue graft in the treatment of gingival recession.

摘要

背景

牙龈退缩（GR）可导致牙根敏感、患者美观问题以及易患根面龋。本随机临床研究的目的是评估：（1）与自体上皮下结缔组织移植（SCTG）相比，使用可吸收胶原膜的引导组织再生（GTR）程序对局限性牙龈退缩缺损进行牙根覆盖的效果；（2）这两种程序后角化龈宽度的变化。

材料与方法

共有10例至少有两个局限性米勒I类或II类牙龈退缩的患者参与本研究。采用双侧对照设计，将成对的缺损随机分配接受SCTG治疗（SCTG组）或基于GTR的胶原膜治疗（GTRC组）。两种移植物均覆盖冠向推进瓣。在基线、术后3个月和6个月记录退缩深度（RD）、退缩宽度（RW）、角化龈宽度（KG）、探诊深度（PD）、相对附着水平（RAL）、菌斑指数（PI）和牙龈指数（GI）。

结果

牙根覆盖程序6个月后，SCTG组和GTRC组的平均牙根覆盖率分别为84.84%±16.81%和84.0%±15.19%。SCTG组和GTRC组角化龈宽度的平均增加分别为1.50±0.70mm和2.30±0.67mm，差异无统计学意义。

结论

可以得出结论，在治疗牙龈退缩方面，可吸收胶原膜可成为自体结缔组织移植的可靠替代方法。

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