To assess peri-implant conditions in a cohort of patients previously treated for periodontitis undergoing supportive periodontal care (SPC). A prospective observational study was carried out on previously treated periodontitis patients followed for 5 years in SPC. Peri-implant diagnosis at baseline and the end of the 5-year period was assessed. Two hundred patients were included in the study. A total of 88 implants were present at baseline in 31 of those patients. A total of 55 (62.5%) implants were diagnosed as having healthy peri-implant tissues, while 22 (25%) were diagnosed with peri-implant mucositis and 11 (12.5%) with peri-implantitis. Five-year data are available for 68 implants in 23 patients. None of these implants was lost during the 5 years follow-up. An additional 20 implants were placed during the study period, resulting in a total of 88 implants reassessed at the last study follow-up, with peri-implant diagnosis almost unchanged compared with baseline. None of the studied patient and implant factors were associated with implant diagnosis in a multilevel model with logistic regression target distribution. A small percentage of implants in a population undergoing SPC were diagnosed with peri-implantitis, and peri-implant conditions were maintained almost unchanged during 5 years of SPC.
Sforza et al. (Thu,) studied this question.