Concordancia en la localización de conductos y variaciones anatómicas radiculares en primer premolar inferior mediante visión directa, microscopio clínico y lupas.

Abstract

Introduction: The magnification of the visual field in Endodontics is an essential step that allows the realization of more precise diagnoses and treatments, considering the great attention to detail. However, there are elements that can be overlooked during treatment, for this reason, the use of cone beam computed tomography is essential. Objective: To determine the concordance in the localization and location of root canals and anatomical variations found in the cervical third of the selected teeth, using direct vision, magnifying loupes, microscope and cone beam computed tomography as a gold standard. Materials and methods: Cross-sectional descriptive observational study, about evaluation of diagnostic technologies, with a sample of 50 natural teeth, first human premolars extracted for non-research purposes, collected during September to December 2020, Zumax 5X magnifying glasses, Dentools MSA clinic microscope and cone beam computed tomography of 0.075mm voxel, analized with Romexis software, brand Planmenca. Results: It was observed that there was a greater concordance with the clinical microscope visualization as the sample was evaluated by the expert researcher, taking into account a kappa value of 0.135. Conclusions: It is concluded that with direct vision there are greater differences in agreement between researchers regardless of their clinical experience; With surgical loupes there is a similar inter-rater agreement, unlike the examination with a clinical microscope, in which experience and the learning curve make the difference. There are more observer similarities when Type I canals are present regardless of the visualization method due to the simplicity of their location and the size of the entrance orifice. In addition, the use of diagnostic aids such as CBCT, represents a complement to the knowledge of anatomy.