Free gingival graft and acellular dermal matrix for gingival augmentation: a 15-year clinical study

Objectives This study evaluated clinical outcomes of acellular dermal matrix (ADM) allograft compared with autogenous free gingival graft (FGG) for gingival augmentation after 15 years. Material and methods Twenty-two patients were originally included and evaluated by de Resende et al. (Clin Oral Investig 23:539–550, 2019), and 12 accepted to participate in this longitudinal evaluation. Clinical parameters evaluated were recession depth (RD), probing depth (PD), clinical attachment level (CAL), keratinized tissue width (KTW), and soft tissue thickness (TT). In addition, esthetic perception was evaluated by patients and by a calibrated periodontist. Data were evaluated by ANOVA complemented by Tukey tests ( p