Micro-CT evaluation of root and canal morphology of mandibular first premolars with radicular grooves - Boschetti, Emanuele; Silva-Sousa, Yara Teresinha Correa; Mazzi-Chaves, Jardel Francisco; Leoni, Graziela Bianchi; Versiani, Marco Aurélio; Pécora, Jesus Djalma; Saquy, Paulo César; Sousa Neto, Manoel Damião de (Brazilian Dental Journal, 2017)