Filling effectiveness and dentinal penetration of endodontic sealers: a stereo and confocal laser scanning microscopy study - Silva, Rogério Vieira; Silveira, Frank Ferreira; Horta, Martinho Campolina Rebello; Duarte, Marco Antonio Hungaro; Cavenago, Bruno Cavalini; Moraes, Ivaldo Gomes de; Nunes, Eduardo (Brazilian Dental Journal, 2015)