Bica, Anamaria, et al. “Tooth Brushing Behavior in 6-11 Year Olds Children and the Importance of a Break of Tooth Brush Once a Day in School”. Revista de Cercetare Si Interventie Sociala, vol. 54, Sept. 2016, pp. 115-24, https://www.rcis.ro/journal/article/view/2291-tooth-brushing-behavior-in-6-11-year-olds-children-and-the.