Abstract
This retrospective cohort study aimed to evaluate the efficiency of supportive periodontal treatment (SPT) on peri-implant disease prevention. A total of 63 rehabilitated patients with 504 implants were selected with both maxillary and mandibular Brånemark-type protocols (all-on-four system) placed between 2004 and 2014 in a private practice with 5 to 15 years of follow-up. Study participants were divided into those who adhered to SPT with regular intervals of two or more times a year (Group 1) and those with irregular intervals with more than 1 year without attending SPT (Group 2). The implants placed were evaluated clinically and radiographically to assess peri-implant diseases. The prevalence of mucositis and peri-implantitis in the total population was 64.7% (326 implants) and 3.7% (19 implants), respectively. Group 2 had higher rates of mucositis (181 implants) and peri-implantitis (16 implants) than Group 1 (145 and 3 implants, respectively) (P < .05). The odds ratio for peri-implantitis in Group 2 was 7.1. The results suggest that patients who regularly received SPT had lower chances of developing peri-implant diseases.
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