Non-surgical Mechanical Therapy of Peri-implantitis With or Without Adjunctive Diode Laser Application

After mechanical debridement, the pockets around the implant will be rinsed with sterile saline solution. Adjunctive diode laser (settings: 810 nm, 2.5 W, 50 Hz, 10 ms) will be applied 3x for 30 s (i.e., 90 s per appointment) using a 400-lm thick fiber (WhiteStar, Orcos Medical AG, Küsnacht, Switzerland) in the test group. In the control group, non-activated (= placebo) adjunctive diode laser will be applied. The entire treatment procedure, including mechanical debridement, will be performed at Day 0 (= baseline), 7 and 14. The laser decontamination procedure will occur by systematically moving the laser tip along the subgingival implant surface in a vertical and horizontal scanning way. The laser tip will be checked after 4-5 s for coagulation to prevent hotspots in the soft tissues.

After mechanical debridement, the pockets around the implant will be rinsed with sterile saline solution. Non-activated (= placebo) adjunctive diode laser will be applied. The entire treatment procedure, including mechanical debridement, will be performed at Day 0 (= baseline), 7 and 14. The laser decontamination procedure will occur by systematically moving the laser tip along the subgingival implant surface in a vertical and horizontal scanning way.