Effects of a 0.03% CHX Mouth Rinse in Peri-implant Mucositis

Clinical and Microbiological Effects of a 0.03% Chlorhexidine Mouth Rinse in the Prevention of Peri-implant Diseases: a Randomized Clinical Trial

Aim: To evaluate the efficacy of a 0.03% chlorhexidine (CHX) and 0.05% cetyl pyridinium chloride (CPC) mouth rinse, as an adjunct to professionally and patient-administered mechanical plaque removal, in the treatment of peri-implant mucositis.

Material and Methods: Patients displaying peri-implant mucositis in, at least, one implant were included in this randomized, double-blinded, clinical trial. Subjects received a conventional professional prophylaxis (at baseline and 6-month visits) and were instructed to regular oral hygiene practices and to rinse, twice daily, during one year, with a 0.03% CHX and 0.05% CPC mouth rinse, or a placebo. Clinical, radiographic and microbiological data were recorded at baseline, 6 and 12 months. Disease resolution was defined as the absence of bleeding on probing (BOP). Repeated measures ANOVA, Student-t and chi square tests were used.

Inclusion Criteria:

• the presence of, at least, one dental implant with clinical signs of peri-implant mucositis, defined as gently bleeding on probing (BOP) and/or suppuration without progressive radiographic bone loss (after at least 1 year of functional loading)

Exclusion Criteria:

• untreated or recurrent periodontitis [presence of nine or more sites with PD 5 mm and with full mouth bleeding score (FMBS) > 25%];
• implants affected by peri-implantitis, (BOP and/or suppuration and progressive radiographic bone loss);
• removable implant-retained prosthesis;
• history of intake of systemic antibiotics within the previous month or other chronic systemic medications that could interfere with the study outcomes;
• and women being pregnant or breast-feeding.