Implantoplasty associated with platelet-rich fibrin membranes to treat peri-implantitis: a case report.

Aim: Peri-implantitis is a biofilm-dependent disease that affects the tissue around a dental implant, characterized by peri‐implant mucosa inflammation and progressive bone loss. Platelet-rich fibrin is well known to accelerate the wound-healing process and presents an important antimicrobial property. Studies have been performed on implant dentistry applying platelet-rich fibrin; however, little evidence is present regarding the benefits of peri-implantitis treatment. Materials and Methods: This case report describes the treatment of peri-implantitis defects in the second quadrant (lateral incisor and canine region) on the implant-supported partial fixed denture of a 59-year-old female patient. Diagnosis was based on probing depth (PD) > 6 mm and bone level loss (BLL) of 5 and 3 mm in lateral and canine region. Moreover, a 1.5 and 3 mm buccal soft tissue dehiscence (BSTD) were observed in each area, respectively. An open flap debridement of the implant surfaces using implantoplasty associated with platelet-rich fibrin membranes was performed followed by adjunctive antimicrobial medication for 7 days. Results: Clinically relevant improvement was observed after 4 months regarding probing depth (< 4 mm). In addition, no bleeding and suppuration on gentle probing were observed. The average gain of keratinized mucosal width was 1.1 mm after 4 months of follow-up. Moreover, the peri-implant buccal margin presented minimal soft tissue recession (0.5 mm each) after the surgical procedure. Buccal keratinized mucosa width also increased at the end of the follow-up. Conclusion: Open flap debridement and implantoplasty associated with platelet-rich fibrin membranes presented good clinical outcomes in the peri-implantitis treatment.