Moreira, L., Pontes, M., Brum, E., Silva, L., de Oliveira, D. D., Figueiredo, A., Gonçalves, P., Flecha, O. and Oliveira, E. (2021) “The effectiveness of apple, sugar-free chewing gum and Rolly Brush® in the reduction of plaque index: crossover randomized clinical trial”, Revista Estomatología, 29(1). doi: 10.25100/re.v29i1.11011.