Surgical therapy of peri-implantitis lesions by means of bovine-derived xenograft. Comparative results of a prospective study on two different implant surfaces.

Mario Roccuzzo (1) , Francesca Bonino (1) , Luca Bonino (1) , Paola Dalmasso (2)

1 Private Practice
2 Public Health and Microbiology

Objectives: The aim of this prospective study was to evaluate a regenerative surgical treatment modality for peri-implantitis lesions on two different implant surfaces. Material and Methods: Twenty-six patients with one crater-like defect, around either TPS (Control) or SLA (Test) dental implants, with a probing depth ≥ 6mm and no implant mobility, were included. Implant surface was mechanically debrided and treated using 24 % EDTA gel and 1% Chlorhexidine gel. The bone defect was filled with bovine-derived xenograft (BDX) and the flap was sutured around the non-submerged implant. Results: One-year follow-up demonstrated clinical and radiographic improvements. Probing depth were significantly reduced by 2.1 ± 1.2 mm in Control and by 3.4 ± 1.7 mm in Test. Complete defect fill was never found around Controls, while occurred in 3 out of 12 Test implants. Bleeding on probing decreased from 91.1 ± 12.4% (Control) and 75.0 ± 30.2% (Test) to 57.1 ± 38.5% (p=0.004) and 14.6 ± 16.7% (p=0.003) respectively. Several deep pockets (≥ 6mm) were still present after surgical therapy around Controls. Conclusions: Surface characteristics may have an impact on the clinical outcome following surgical debridement, disinfection of the contaminated surfaces and grafting with BDX. Complete fill of the bony defect seems not to be a predictable result

Mots clés: Medicine

Mario Roccuzzo, Francesca Bonino, Luca Bonino, Paola Dalmasso. Surgical therapy of peri-implantitis lesions by means of bovine-derived xenograft. Comparative results of a prospective study on two different implant surfaces.. Journal of Clinical Periodontology, 2011, 38 (8), pp.738. ⟨10.1111/j.1600-051X.2011.01742.x⟩. ⟨hal-00647405⟩