Sealing ability of MTA and radiopaque portland cement with or without calcium chloride for root-end filling - Bortoluzzi, Eduardo Antunes; Broon, Norberto Juárez; Bramante, Clóvis Monteiro; Garcia, Roberto Brandão; Moraes, Ivaldo Gomes de; Bernardineli, Norberti (The Journal of Endodontics, 2006)