2024. The Effectiveness of Video Tutorials to Increase Knowledge and Practices of Brushing Teeth in Preschool Children (Study of Preschool Children at Putra Harapan and Dewi Sartika Kindergarten Tuban) . International Journal of Advanced Health Science and Technology. 4, 4 (Aug. 2024). DOI:https://doi.org/10.35882/ijahst.v4i4.366.