Background and Aim: This study aimed to assess the influential factors on selection of implant treatment by patients and their correlation with outcome satisfaction.
Materials and Methods: This cross-sectional study was conducted on 135 patients requiring dental implant treatment. Information regarding the influential factors on selection of implant treatment by patients was collected using a valid and reliable questionnaire, and the correlation of influential factors with outcome satisfaction was analyzed by the Pearson and Spearman correlation tests. Data were analyzed by independent t-test, Kruskal-Wallis test, Mann-Whitney test, Chi-square test, and one-way ANOVA (alpha=0.05). 
Results: Advice from dentists was the most common reason (50.4%) for selection of implant treatment. Knowledge of patients about implant treatment had a significant correlation with their outcome satisfaction (P=0.003) but had no correlation with dental clinician’s satisfaction with the treatment outcome (P=0.054). Knowledge of patients about implant treatment had a significant correlation with the time interval between the date of advice from their dentist and time of seeking dental implant treatment (P=0.024), and their level of education (P<0.001).
Conclusion: Patients had optimal knowledge level about implant treatment, and dentists had the most important role in knowledge enhancement of patients and convincing them to seek dental implant treatment. Knowledge level of patients had a significant correlation with their satisfaction with the outcome.