Comparative analysis of clinical, patient-centered, and COL1A1 gene expression outcomes following coronally advanced flap with xenogeneic collagen matrix versus connective tissue graft in maxillary gingival recession: A parallel-arm, single-blinded r

XCM offers comparable clinical and molecular outcomes to CTG with the added benefits of reduced surgical time and morbidity, making it a viable, patient-friendly alternative in the management of gingival recession.