Effect of Different Non-surgical Treatment Approaches of Peri-implantitis: a Multi-arm Randomized Controlled Clinical Trial

Peri-implantitis is a biofilm-associated pathological condition characterized by inflammation within the peri-implant mucosa, which leads to the progressive loss of the surrounding supporting bone tissue. The primary goal of managing peri-implantitis is to control the peri-implant biofilm and resolve inflammation. Nonsurgical treatment of peri-implantitis by submarginal mechanical instrumentation alone typically provides clinical improvements, particularly in non-advanced cases. However, to ensure surface decontamination and enhance treatment outcomes, alternative or adjunctive methods, such as systemic/local antibiotics, antiseptics, lasers, and air-abrasion systems, have been proposed.

Therefore, the null hypothesis (H0) of the present study is that no statistically significant difference would be detected in clinical inflammation signs among patients diagnosed with early-stage peri-implantitis after undergoing one of the following treatments: nonsurgical mechanical instrumentation alone, mechanical instrumentation plus chlorhexidine (CHX), mechanical instrumentation plus gaseous ozone, mechanical instrumentation plus glycine air polishing, or glycine air polishing alone.