Objectives : This study was purposed to estimate the level of oral health quality of life and the relationship between health-related factors and oral health quality of life in patients with successful dental implants. Methods : This questionnaire survey was conducted during the period from December 2009 to March 2010 with 126 patients confirmed successful dental implants in Busan. The oral health related quality of life and oral health-related factors were estimated with OHIP-14 and 8 oral health characteristics, respectively. Data analysis was performed with descriptive analysis, t-test, ANOVA, multiple regression analysis using SAS(ver 9.1) program. Results : The score of oral health quality of life in patients with successful dental implants was $12.25{pm}7.82$. The scores of subscale of the oral health quality of life were $1.24{pm}1.35$ in social disability, $1.60{pm}1.37$ in handicap, $1.60{pm}1.44$ in psychological disability, $1.70{pm}1.38$ in functional limitation, $1.81{pm}1.35$ in physical disability, $2.14{pm}1.46$ in physical pain, $2.17{pm}1.46$ in psychological discomfort, respectively. The related factors of oral health quality of life in patients with successful dental implants were absence of other type prosthesis and experience of tooth brushing education. Conclusions : The oral health related quality of life in patients with successful dental implants was relatively good condition. Social supports and chances for high quality denture and tooth brushing educations are needed to improve oral health related quality of life in patients with dental implants.