Effect of sealant versus fluoride varnish on dental caries incidence in Mexican children: A randomized controlled clinical trial - Miguel Ánge Fernández-Barrera; Edith Lara-Carrillo; Rogelio José Scougall-Vilchis; América Patricia Pontigo-Loyola; Mariana Mora-Acosta; Gladys Remigia Acuña-Gonzalez; Juan Alejandro Casanova-Sarmiento; Mauricio Escoffié-Ramírez; Carlo Eduardo Medina-Solis; Gerardo Maupomé (Journal of Stomatology)