Influence of pH Change and Water Storage on the Sealing Ability of Two Resin-based Root-filling Materials - Souza, Soraia de Fátima Carvalho; Souza, Douglas Nesadal de; Pereira, Adriana de Fátima Vasconcelos; Barroso, Lucia Pereira; Bombana, Antonio Carlos (Journal of Contemporary Dental Practice, 2015)