Artefacts in cone beam CT mimicking an extrapalatal canal of root-filled maxillary molar - Camilo, Carla Cristina; Brito Júnior, Manoel; Silva, André Luís Faria e; Quintino, Alex Carvalho; Paula, Adrianne Freire de; Cruz Filho, Antonio Miranda da; Sousa Neto, Manoel Damião de (Case Reports in Dentistry, 2013)