Estudio descriptivo del número de raíces y la longitud dental de primeros premolares maxilares en tomografías computarizadas de Haz cónico

Abstract

The number of roots and dental lengths of the maxillary first premolars can be very variable; the factors that influence are in relation with sex, geography and ethnicities for which they have been extensively studied. The objective of this study was to determine the number of roots and dental length of the first maxillary premolars through computed tomography of conical beam. The present study was descriptive, observational and retrospective type. It was performed on 49 tomographies using conical beam computed tomography, It was observed the number of roots of the first maxillary premolar and was determined the length of the first premolars maxillars, finally the data were grouped according to sex. The data were analyzed using the NNT software viewer, through axial cuts was obtained the number of roots and for the length cuts following the longitudinal axis of the tooth. 56.6% exhibited one root and 43.4% had two roots. Of the unirradicular premolars, the median length was 20.1mm; In the birradiculars, the vestibular roots measured 19.6 mm; While in the palatal roots it was 19.9mm. The highest prevalence found was of a root and it was possible to establish that the length can not be expressed in a single value because it is a multiradicular tooth