Mandibular transverse dimension in adults Class I skeletal by complete skull tomography

Abstract

Foundations: There are diagnostic methods to determine the mandibular transverse width in orthodontics, which is performed in postero-anterior radiographs, in study models and in cone beam computed tomography, the latter being the most indicated method due to its greater precision. The correct diagnosis allows us to develop and plan a treatment according to the needs of the patient, today the use of Cone Beam Computed Tomography (CBCT) is a tool that helps us approach the patient in the three planes of space, and specifically in the cross-sectional analysis of the jams, we determine their adequate width or their discrepancies, which provides us clear data for a correct treatment plan. Objective: To determine the average mandibular transverse distance in an adult Andean population evaluated by Cone Beam Computed Tomography. Methods: The study was conducted in 120 tomography’s of adult patients (67 women, 53 men) in which the measurements were obtained to determine the total mandibular transverse distance of the study population and the mandibular transverse distance by male and female sex. By means of CBCT specifically in the axial view, where the internal cortices of the vestibular tables were in the lower first permanent molars at the level of the furcation, using the create line tool and the transverse distance of the internal cortical of a side to inner cortex of the other side. Results: It was determined that the total average mandibular transverse distance in men was 53.73 mm, the total mandibular transverse distance in women was 44,39 mm and the total mandibular transverse distance was 52,54 mm. Conclusions: The mandibular transverse distance in the skeletal Class I population is greater than the currently existing reference measurements, with higher values for males than females.