Comparative outcomes of xenogeneic collagen matrices and autogenous graft-based techniques to increase mucosal thickness and keratinised mucosa width at implant sites: are autologous grafts still the gold standard? A systematic review and meta-analysis of randomised clinical trials.

Néstor Ríos-Osorio, Mangriveth Orozco-Agudelo, Iván Cespedes-Moreno, Marcela Contreras-Ibarra, Mario Guerrero-Torres, Adriana Castro-Calderón, Marggie Grajales, Oscar Jiménez-Peña