Evaluation of apically extruded debris during endodontic retreatment - Vitoriano, Marcelo de Morais; Aguiar, Bernardo Almeida; Mesquita, Iuri Lopes; Maniglia-Ferreira, Cláudio; Gomes, Fábio Almeida; Santos, Roberto Alves dos; Duarte, Marco Antonio Hungaro (RSBO, 2013)