New proposal of silver diamine fluoride use in arresting approximal caries: study protocol for a randomized controlled trial - Silveira, Juliana Mattos; Floriano, Isabela; Ferreira, F R; Viganó, Maria Eduarda F; Frizzo, M A; Reyes, Alessandra; Novaes, Tatiane Fernandes; Moriyama, C. M; Raggio, Daniela Prócida; Imparato, José Carlos Pettorossi; Mendes, Fausto Medeiros; Braga, Mariana Minatel (BioMed Central: news and views, 2014)