Presence of voids after continuous wave of condensation and single-cone obturation in mandibular molars: a micro-computed tomography analysis - Iglecias, Elaine Faga; Freire, Laila Gonzales; Candeiro, George Táccio de Miranda; Santos, Marcelo dos; Antoniazzi, João Humberto; Gavini, Giulio (The Journal of Endodontics, 2016)