It is indispensable to incorporate variables concerning the relationships between caregivers and care recipients into the model which investigates the determining factors on dental care utilization of recipients. The objective of this study is to analyze the factors for dental care utilization of care recipients, using the expanded Andersen and Newman's Health Behavioral Model . The subjects were 30 pairs of caregivers and care recipients who routinely visited a day care center in a town of Yamanashi prefecture. All of the subject care recipients, who had one or more dental problems were encouraged to seek dental care after survey including oral examination and interview with them and their caregivers . The multiple logistic regression analysis revealed that the care recipients' perception of need of dental care was the most significant predictor and that the variables about cognition for the decision-making played significant roles in dental care utilization. It was also clarified that frequency of respondent's utilization of dental care was high in cases that not only the care recipients but also their caregivers recognized the former as a decision-maker of receiving dental care, demonstrating that this decision-making pattern is one of the regulating factors of the care recipients' dental care utilization in communities.