A nonsurgical treatment of peri-implantitis using mechanic, antiseptic and anti-inflammatory treatment: 1 year follow-up.

AIMS: The study's aim was to assess the clinical outcome 6 and 12 months after a nonsurgical treatment of peri-implantitis per se or in conjunction with a combination of local antiseptic and anti-inflammatory treatment. MATERIALS AND METHODS: Included were 69 patients with periodontitis, with 106 implants, diagnosed with peri-implantitis. Peri-implantitis was defined as radiographic bone loss >/=3 mm, probing depth (PD) >/= 6 mm, with bleeding on probing. Group M peri-implantitis was treated with ultrasonic debridement and soft tissue curettage. Group P had additional implant surface treatment with rotatory hand piece composed of chitosan bristle, soft tissue curettage combined with application of 0.95% hypochlorite and 1 mg minocycline HCl. RESULTS: After 6 months, both groups demonstrated significant reduction of mean plaque index, PD, and clinical attachment level (0.71 +/- 0.57, 0.81 +/- 0.55; 4.77 +/- 0.73 mm, 4.42 +/- 0.5 mm; 5.03 +/- 0.86 mm, 5.13 +/- 0.73 mm; respectively) and bleeding on probing. After 6 and 12 months, group P showed significantly better PD results compared to group M. The bleeding was significantly less in group P after 12 months (15.3% +/- 6.2, 25.1% +/- 8.2, respectively). CONCLUSIONS: Adjunctive treatment with local antiseptic and anti-inflammatories during mechanical phase was positively associated with inflammation reduction and connective tissue reattachment.