Objectives : The purpose of this study was to determine the effects of oral health on the quality of life of elderly patients with dentures or implants. It is our intention that through this analysis we can aid seniors in making the choice between dentures or implants, considering future masticatory function and the likely effects of this decision on the patients quality of life. Methods : This survey was conducted between November 1, 2010 and November 25, 2010, in Kyunggi-Do, whasung city. The research was carried out at one public health center, among elderly patients. 105 seniors were surveyed using the direct interviewing method, oral health related quality of life was measured by the Philadelphia Geriatric Center(PGC) Morale Scale. Collected data was examined using the SPSS 13.0 program, using frequency, mean, and standard deviation analysis, T-test and $x^2$ test. Results : The number of residual teeth for patients who have implants was $20.45{pm}5.85$, while among those patients with dentures the number was considerably lower, $8.11{pm}7.66$(p<0.05). The results of patients masticatory function, was $28.13{pm}2.40$ for those with implants, and $25.35{pm}4.15$ with dentures. The results were better for those with implants. Among implant patients overall satisfaction was rated $25.21{pm}3.63$, higher than for those with dentures $20.20{pm}6.79$(p<0.05). Quality of life was scored higher for patients with implants($12.76{pm}2.61$) compared to those with dentures($10.47{pm}3.52$)(p<0.05). The subjects masticatory function was highly related to the number of remaining teeth and greater masticatory function had a positive effect on patients quality of life and life satisfaction. Conclusion : Dental treatments such as dentures and implants will have a great influence on patients quality of life and life satisfaction. Implants can improve the oral health related quality of life and satisfaction and the general quality of life more than denture therapy.