Micro–computed tomography study of filling material removal from oval-shaped canals by using rotary, reciprocating, and adaptive motion systems - Crozeta, Bruno Monguilhott; Silva-Sousa, Yara Teresinha Correa; Leoni, Graziela Bianchi; Mazzi-Chaves, Jardel Francisco; Fantinato, Thais; Baratto-Filho, Flares; Sousa Neto, Manoel Damião de (Journal of Endodontics, 2016)