Is it worth using low-cost glass ionomer cements for occlusal ART restorations in primary molars?: 2-year survival and cost analysis of a Randomized clinical trial - Olegário, Isabel Cristina; Ladewig, Nathalia de Miranda; Hesse, Daniela; Bonifácio, Clarissa Calil; Braga, Mariana Minatel; Raggio, Daniela Prócida; Imparato, José Carlos Pettorossi; Mendes, Fausto Medeiros (Journal of Dentistry, 2020)