Effectiveness of surgical root coverage on dentin hypersensitivity: A systematic review and meta‐analysis.

Aim: To assess the effect of surgical root coverage (RC) on dentin hypersensitivity (DH) associated with gingival recession. Materials and Methods: Two independent reviewers conducted electronic literature searches in MEDLINE (PubMed), EMBASE, Cochrane Library, Web Of Science, Dentistry & Oral Sciences Source, ScienceDirect, and ClinicalTrials.gov databases as well as a manual search to identify eligible clinical studies from January 2000 to March 2022. Randomized controlled trials (RCTs) comparing two surgical RC techniques or a surgical RC technique with or without adjuvant were included. Meta‐analyses were performed on data provided by RCTs. Results: Thirteen RCTs with a total of 701 patients (1086 recessions) were included. The percentage of DH suppression was 70.8% (95% confidence interval [CI] [64.4–76.6]; I2 = 39.2% [3.5–61.8], Q‐test = 0.02) after surgical RC. Recession reduction and percentage of RC were both statistically significantly associated with DH suppression (estimate = 0.66 [0.10–1.23], p =.022, R2 = 14.45% and estimate = 0.04 [0.01–0.08], p =.012, R2 = 29.54%, respectively). Coronally advanced flap (CAF) + connective tissue graft showed results statistically more effective than CAF + xenogeneic collagen matrix in DH suppression (73.3% [65.6–79.8] and 61.4% [51.7–70.3], respectively; p =.048). Conclusions: Success of surgical RC is associated with DH suppression. [ABSTRACT FROM AUTHOR]