Objective: This study aimed to cross-culturally adapt and validate the Self-Regulation Questionnaire for Dental Home Care (SRQDHC) for use among Vietnamese children and to examine the relationship between motivation for oral hygiene and dental caries status. Methods: The SRQDHC was translated and culturally adapted for Vietnamese children aged 9–10 years using cross-sectional study. A total of 200 students were randomly selected from a primary school in Hanoi. Clinical dental examinations were conducted to assess caries experience using the dmft and DMFT indices. Subsequently, participants completed the Vietnamese version of the SRQDHC to evaluate their oral hygiene motivation. Internal consistency and factor loadings were analyzed to assess the questionnaire’s reliability. Results: Dental caries was observed in 84.5% of participants. The mean dmft and DMFT scores were 3.20 ± 3.18 and 2.15 ± 2.37, respectively. The SRQDHC demonstrated acceptable internal consistency (Cronbach’s alpha = 0.7021) and strong factor loadings (>0.3). A statistically significant correlation was found between motivation scores and caries status. Conclusion: The Vietnamese version of the SRQDHC is a reliable tool for assessing dental home care motivation in children. Given the high prevalence of caries in this population, motivation-based oral health interventions are warranted. Further refinement of selected questionnaire items is recommended to enhance its utility in clinical and research settings.
Ho et al. (Thu,) studied this question.