RESUMEN
OBJECTIVES: This research was conducted to identify the effects of a mother's nationality on adolescent oral health using data from the Korea Youth Risk Behavior Web-based Survey (2016). METHODS: This research matched adolescent health behavior online survey results using propensity score matching and identified the influence of a mother's nationality on her adolescent child's oral health. A total of 715 adolescents whose mothers' nationalities were identified as not Korean were selected as research participants, and 715 adolescents were selected from 62,349 individuals whose mothers' nationalities were identified as Korean as a comparison group to undergo propensity score matching. RESULTS: Having a non-Korean mother showed no influence on adolescents' subjective oral health. Socioeconomic characteristics, oral health behaviors, and experience visiting dental clinics were identified as affecting oral health. CONCLUSIONS: The relationship between the characteristics of a multi-cultural family and oral health shown in this research suggests that health and welfare services essential to protect the rights to health must be maintained. Moreover, the results suggest that health services that focus on socioeconomically disadvantaged multi-cultural families must be seriously considered.