Effectiveness of soft tissue augmentation procedures for coverage of buccal soft tissue dehiscence around dental implants: A systematic review.

Clin Oral Implants Res

Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Berlin, Germany, Charité - Universitätsmedizin Berlin, Berlin, Germany.

Published: June 2022

Objective: This systematic review evaluated the effectiveness of soft tissue augmentation procedures for complete coverage and mean coverage of buccal soft tissue dehiscence (BSTD) in patients with implant-supported restorations.

Methods: Three databases were surveyed for randomized (RCTs), non-randomized controlled clinical trials (CCTs), cohort studies, case-control studies, and case series with a minimum of five patients per control or test group. Studies dealing with soft tissue augmentation procedures to cover BSTD-occurring during implant function and not due to the result of peri-implantitis-were included. Risk of bias was evaluated with RoB 2 or the National Institutes of Health's Quality Assessment. Whenever possible, exploratory meta-analyses were performed to evaluate weighted mean effects (WME) for the different outcomes. The primary outcomes were the percentage of complete coverage and mean coverage of BSTD.

Results: Seven articles were included. Only one study was a RCT, with a high risk of bias. Meta-analyses showed that after 1 year (2 studies, n = 36 patients; WME = 70; 95% confidence interval [CI] = 50; 90; p = .23) as well as after 5 years (3 studies, n = 54 patients; WME = 70; 95%; CI = 60; 80; p = .44), complete coverage of BSTD could be achieved in 70% of the cases.

Conclusion: Based on limited evidence, it can be concluded that BSTD can be substantially reduced with the use of soft tissue augmentation procedures. Further research with comparative trials using larger samples and longer follow-up periods is needed to study the stability of soft tissues in the long term.

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Source
http://dx.doi.org/10.1111/clr.13918DOI Listing

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