Radiographic analysis of root canal fillings: influence of two sealers on the perception of voids - Bodanezi, Augusto; Munhoz, Etiene de Andrade; Bernardineli, Norberti; Capelozza, Ana Lúcia Álvares; Moraes, Ivaldo Gomes de; Bramante, Clovis Monteiro (Brazilian Dental Journal, 2010)