Dental Implants Used for Orthodontic Anchorage in Patients with Stage IV Periodontitis: A Retrospective Case Control Study

Little is known about the effects of orthodontic loading on dental implants used for orthodontic anchorage in patients with Stage IV periodontitis. This retrospective case–control study included 58 dental implants in 24 patients with Stage IV periodontitis. The dental implants were used for both chewing function and orthodontic anchorages. The outcome measures included peri-implant marginal bone loss and peri-implantitis. Pair t test and Wilcoxon rank-sum test were used to analyze the impact of implants as orthodontic anchorage on MBL and peri-implantitis. No implants were lost during the 17-year follow-up. Patients with poor compliance significantly predicted the MBL. Poor oral hygiene, one-piece implants and implants with a KG < 2 mm were associated with a higher risk of peri-implantitis. Results from the present long-term study indicated dental implants could be successfully used as orthodontic anchorage in periodontal compromised patients.