The Relationship Between Toothbrushing Habits and the Prevalence of Caries and Calculus in School-Age Children Grades 1-6 at Galilea Hosana School Elementary School, Medan Selayang District of North Sumatra, Indonesia . CMEJ 2023, 5 (1), 410-414. https://doi.org/10.37275/cmej.v5i1.455.