Prevalence Ofperiimplant Diseases and Their Risk Indicators - Cross Study Multicentric

Objectives: To determine the prevalence and possible risk factors of periimplant disease, in patients who received partial implant-supported fixed rehabilitations.
Methods: One hundred forty seven patients with 490 implants who received implant-supported rehabilitation, with at least 1 year were evaluated by clinical and radiographicaly. Systemic factors of patients and implant characteristics were collected. Statistical analyzes included univariate logistic regression for selection of associated factors and application of multiple logistic regression were used. The odds ratio and confidence interval (95%) were calculated and the Wald test was used to assess the significance of each coefficient in the multiple model. For the analysis of waste was applied the Hosmer-Lemeshow test. associated with implants and patients. All analyzes were performed with a 5% significance level.
Results: The prevalence of periimplant mucositis and periimplatitis in patients was 80.3% and 19.0% respectively and in implants 85.3 and 9.2%. Smoker patients have 6.87 times more likely (p = 0.018) had mucositis and 5.87 times more likely (p = 0.031) having periimplantitis. Patients who did not undergo supportive therapy showed 2.46 (p = 0.039) more likely to have mucositis and 2.43 times more likely (p = 0.049) having periimplantitis. The type of connection of the implants and the presence of poorly adapted prosthesis were factors that influenced the occurrence of peri-mplant mucositis. For periimplantitis using platform switching was a protective factor, as well as the amount of tissue keratinized.
Conclusions: Despite the present study limitations we could conclude that smoking and periodontal supportive therapy were risk factors associated with peri-mucositis deploy and periimplantitis. As implant characteristics, the type of connection and bad adaptation influenced the occurrence of peri-implant mucositis and the presence of keratinized mucosa and implants and platform switching system were protective variables to periimplantitis.