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Efficacy of modified coronally advanced flap in the treatment of multiple adjacent gingival recessions: a systematic review and meta-analysis

Abstract Objective This systematic review (SR) aims to evaluate the efficacy of modified coronally advanced flap (mCAF) on clinical and patient-reported outcomes in the treatment of multiple adjacent gingival recessions (MAGRs). Materials and methods Randomized controlled trials (RCTs), case-series and prospective clinical studies on treatment of Miller class I/II or RT1 MAGRs with ≥ 6 months follow-up were identified from the electronic databases and hand-searched journals. Complete root coverage (CRC) was the primary outcome variable. To evaluate treatment effects, meta-analysis was conducted, wherever appropriate. Results A total of 1395 recessions in 408 patients were evaluated in SR and meta-analysis was performed for four RCTs. Overall CRC achieved with mCAF was 70% and mean root coverage (MRC) ranged from 51.58 to 97.27%. Meta-analysis showed that combination of mCAF with connective tissue graft (CTG) or collagen matrix (CM) demonstrated significantly higher CRC% and recession reduction than mCAF alone. Limited evidence is available to support the use of platelet rich fibrin or enamel matrix derivative or acellular dermal matrix graft along with mCAF to further enhance its efficacy. Conclusions mCAF is an effective procedure for treating MAGRs and in terms of achieving CRC and MRC. Additional use of CTG or CM further enhances treatment outcomes.