This a Randomized Controlled Clinical Trial comparing two techniques for the nonsurgical
treatment of peri-implant mucositis. The main objective of the present randomized controlled
clinical trial is to determine whether the application of a novel treatment strategy for
peri-implant mucositis could lead to significantly improved clinical parameters as compared
to standard treatment. Half of the patients receives treatment with manual instruments and
chlorhexidine gel 1%, half receives treatment with submucosal biofilm removal by erythritol
powder.