@article{article263a84e3,
title   = {Evaluation of the maxillary premolar roots using radiographic holders with conventional and digital radiography},
author = {Bardauil, Marcia Regina Ramalho da Silva and Moura Netto, Cacio and Moura, Abílio Albuquerque Maranhão de},
year = {2010},
journal   = {Brazilian Oral Research}
}