Peri-implantitis Implantoplasty Treatment

Inclusion Criteria: * Peri-implantitis (according to 2018 criteria) on minimum 2 implants of similar surface and defect type * Competent to give consent * Exposed, modified implant surface with loss \>2mm Exclusion Criteria: * Previous radiotherapy to the jaws, current use of chemotherapy, systemic long-term corticosteroid treatment * Present or past use of bisphosphonate treatment • Pregnant or nursing subjects * Patients classified as \> class II according to ASA classification * Implant unavailable for implantoplasty treatment * Inhability to comprehend and respond to the quality of life questionnaire * Examiners/operators deem original placement of implant (angle, position) suboptimal and considered to play a major role in development of peri-implantitis * History of peri-implantitis surgery prior to 6 months of screening