Morphologic micro–computed tomography analysis of mandibular premolars with three root canals - Ordinola-Zapata, Ronald; Bramante, Clóvis Monteiro; Villas-Boas, Marcelo Haas; Cavenago, Bruno Cavalini; Duarte, Marco Antonio Hungaro; Versiani, Marco Aurélio (Journal of Endodontics, 2013)