Carlos Eduardo Fontana; Carolina Davoli Macedo Ibanéz; Felipe Davini; Alexandre Sigrist De Martin; Cláudia Fernandes de Magalhães Silveira; Daniel Guimarães Pedro Rocha; Carlos Eduardo da Silveira Bueno. Endodontic Therapy of Maxillary Second Molar Showing an Unusual Internal Anatomy. RSBO 2013, 9, 213-7.