Almutairi, Zainab2022-07-212022-07-212021430.5-2021.05https://repository.mbru.ac.ae/handle/1/1016Background: In the past few decades implant supported fixed dental protheses has become widely accepted treatment option for replacing missing teeth. Despite their high survival rate, complications such as peri-implant diseases are common. Aim: To evaluate patient-, implant- surgical- and prosthetic-related risk factors that are associated with peri-implant diseases, identify prevalence and predictors of peri-implant diseases. Materials and Methods: A retrospective study of 162 patients who received 301 dental implants was conducted to evaluate the prevalences and risk indicators for peri-implant mucositis and peri-implantitis. The data were analyzed using the binary logistic regression to evaluate different risk indicators peri-implantitis. Results: The prevalence of peri-implant mucositis at the patients and implant levels were 44.4% and 38.2%, respectively. For peri-implantitis, the prevalence at the patient level was 5.6%, while the prevalence at the implant level was 4.0%. Patients diagnosed with peri-implant mucositis were more likely to be irregular attenders of peri-implant maintenance while those diagnosed with peri-implantitis were likely to be smokers, had history of treated periodontitis or did not attend of regular peri-implant maintenance visits. Conclusion: Within the limitations of this retrospective study, the analysis identified plausible risk indicators, namely smoking, history of treated periodontitis and irregular peri-implant ii maintenance visits, that would allow clinicians to identify those at risk and ensure continuous peri-implant supportive care.enProsthodonticsThesis