A micro-computed tomography assessment of the efficacy of rotary and reciprocating techniques for filling material removal in root canal retreatment - Crozeta, Bruno Monguilhott; Sousa Neto, Manoel Damião de; Leoni, Graziela Bianchi; Mazzi-Chaves, Jardel Francisco; Silva-Sousa, Yara Terezinha Corrêa; Baratto Filho, Flares (Clinical Oral Investigations, 2016)