Asociación de conductos no tratados y periodontitis apical en primeros molares superiores : análisis tomográfico.

Abstract

Introduction: The success of endodontic therapy lies in the fulfillment of its main objectives: biomechanical preparation, disinfection and obturation of root canals in their three dimensions. It is of the utmost importance to be informed about the anatomical variations that each of the dental pieces has. Apical periodontitis is an inflammatory response at the periapex that is frequently associated with untreated canals. Objective: To determine the association of untreated canals and apical periodontitis in upper first molars. Materials and Methods: A retrospective and cross-sectional study was carried out with a descriptive, analytical, observational and non-experimental design. Two thousand scans were obtained, of which 100 were selected according to the inclusion and exclusion criteria. Results: There is a 67% prevalence of apical periodontitis associated with missed canals in maxillary first molars. The missed canal that has the most influence is MV2 in 51%. The anatomical configuration Type I according to Vertucci is the most common in the mesiobuccal root in 42%. In 64% of the CT scans, it was observed that there is no association of missed canals and other pathological entities. The best acquisition volume for visualization of root canals is 6×6cm. Conclusions: The probability of finding 2 canals in the mesiobuccal root of the maxillary first molars is quite high. A small acquisition volume is the best for anatomical analysis.