Estudo transversal da anatomia endodôntica de pré-molares e molares inferiores por meio de CBCT

Abstract

Introduction: Knowledge of the anatomy of the root canal system is important for a correct diagnosis and related treatment, influencing its level of success. There are anatomical variations for each type of tooth, and it is noteworthy that the morphology of the root and canal varies greatly between populations, within populations and even within the same individual. Objectives: Descriptive analysis of the internal dental anatomy of mandibular premolars and molars in a population, using cone beam computed tomography from the FMDUCP Clinic database. Materials and Methods: Tomographic images in which the lower premolars and molars were in the mouth were selected. The images included in the study were correlated according to the Vertucci classification and analyzed the prevalence of extra roots and canals, molars with C- shaped canals, presence of Radix entomolaris and paramolaris. A descriptive analysis of the types of teeth evaluated and the characteristics mentioned above of each group of teeth was carried out. Results: In a sample of 40 CBCTs, 151 teeth were analyzed. Most of the 1st and 2nd premolars had only one canal and most of them had a Vertucci type I morphology; The 1st and 2nd molars had mostly 3 canals, type IV according to Vertucci's classification, in the mesial root and in the distal root type I; Most of the 3rd molars had 3 canals with a canal morphology of the mesial Vertucci root type II and on the distal root all teeth were Vertucci type I. The incidence of C-Shaped teeth in the first and second premolars was the same, with the mandibular second molars showing the highest incidence of this variation. It was not possible to observe the presence of Radix Entomolaris and Paramolaris. Conclusions: Adequate knowledge of the canal anatomy is very important for the success of endodontic treatment. The dentist must be aware of the complexity of the root canal anatomy using the latest and most reliable diagnostic tools to achieve more reliable and favorable treatment results.

Date of Award	22 Jul 2021
Original language	Portuguese
Awarding Institution	Universidade Católica Portuguesa
Supervisor	Cacio Moura-Netto (Supervisor) & Rita Noites (Co-Supervisor)