Estudio in vitro de las diferentes variaciones anatómicas internas de los premolares inferiores mediante el método de diafanización.

Abstract

INTRODUCTION: For an endodontic treatment to be a success, it is important to have in-depth knowledge of the professional about the normal anatomy of the root, as well as the complexities that this can present, since if a root canal is not treated or has a bad management is a cause of endodontic treatment failure. OBJECTIVE: To analyze the different internal anatomical variations in the mandibular premolars and their comparison with the Vertucci classification. MATERIALS AND METHODS: X-rays were taken from each sample to then proceed with diaphanization of 40 first mandibular premolars and 40 second mandibular premolars following the Roberston protocol. RESULTS: The highest prevalence for the first mandibular premolars was type I with 50% and the highest prevalence for the second mandibular premolars was type I with 85%. It was observed that in the first and second mandibular premolars the highest prevalence was a central position with 65%. It was recorded that 87.5% of the radiographs of the first and second mandibular premolars coincided with the diaphanization samples. CONCLUSION: 5 types of ducts were observed according to Vertucci in total: I, III, IV and V. In both the first and second mandibular premolars the most prevalent was type I. The location of the apical foramen in the first and second lower premolars is given in greater prevalence by central. Finally, the periapical radiographs obtained from each piece have a high match with the diaphanized samples.