ORIGINAL ARTICLEOriginal Article • June 24th, 2015
Contract Type FiledJune 24th, 2015Corresponding author: Sergio E Uribe. Associate Professor, Radiology Service, School of Dentistry, Facul- ty of Medicine, Universidad Austral de Chile, Valdivia, Chile. Rudloff # 1640, Valdivia. Chile. Phone:(+56 63) 2293743. E-mail: sergiouribe@uach.cl