ICG-PDT, Periimplantitis, Diabetes Mellitus

An 810 nm diode laser (A.R.C. laser GmbH, Nurnberg, Germany) with a power of 200 mW (continuous mode) and total energy of 4 J was used to excite the ICG by starting from the papilla for 30 s followed by the insertion inside the peri-implant pocket depth for 10 s from both buccal and lingual side moving to coronal direction. The treatment was applied according to the manufacturer's recommendation. The PDT was performed by a single operator in all test patients

The peri-implant mechanical debridement was done with the help of ultrasonic carbon tip (Vector, Durr Dental, Bietigheim-Bissingen, Germany).