A retrospective study on systemic factors affecting marginal bone loss and success rate of implants

4RK10 ePOSTER CLINICAL RESEARCH – PERI-IMPLANT BIOLOGY

Background: Dental implant surgery is widely used and considered as one of the most reliable treatment option. However, variable systemic factors can affect the success of implants, and it would be necessary to confirm the relationship between systemic factors and implant survival rates.

Aim/Hypothesis: The purpose of this study is to examine the systemic factors that have influence on success and survival rates of implants.

Materials and Methods: From 2003 to 2017, patients’ medical charts with a history of dental implant surgery by one periodontist at Chonnam National University Dental Hospital were reviewed retrospectively. Various factors including sex, age, implant placement site, implant diameter and length, implant company, implant connection type, the severity of periodontitis, smoking, diabetes, anticoagulant medications, liver disease, immunosuppressant medications, and osteoporosis were evaluated and analyzed through electronic medical records (EMR).

Results: A total of 233 implants in 110 patients (69 men, 41 women) were included. After analyzing statistical relevance between systemic disease and marginal bone resorption, there was a statistically significant correlation between diabetes (β=-.164, P < .05), osteoporosis (β=-.211, P < .005) and marginal bone resorption. As a result of multiple regression analysis using backward elimination, factors affecting marginal bone loss were diabetes, anticoagulant medication, and osteoporosis. The factors and success rate of implants (success survival of implant, satisfactory survival of implant) over 3 years were not statistically significant (F = 1.086, P < 0.373, F = 0.646, P < 0.762). The results of multiple regression analysis using backward elimination showed that anticoagulant medication use influenced the long-term success rate of implants.

Conclusions and Clinical Implications: Given the above results, diabetes, anticoagulants medication, and osteoporosis affect the marginal bone loss around implants. Furthermore, anticoagulants medication has an effect on the survival rate of implants.