Three-dimensional Analysis of the Distance between Pulp Tissue and Caries or Obturation in Different Projections using CBCT

Abstract

The aim of this research was to analyze the distance between radiographic pulp chamber and caries or obturations in vivo using cone-beam computed tomography (CBCT) imaging in different projections. Materials and Methods:A total of 50 premolar and molar teeth from 50 patients were examined using CBCT imaging, previously taken for diagnosis and treatment. Slices in different projections were scanned and the distance between radiographic pulp chamber and caries or obturations was measured using a software's tool. Results:The distance in two-dimensional projection was significantly lower than in three-dimensional projection in all the examined teeth, showing a less distance from the pulp chamber and the caries or obturation. Conclusions:The distance between the caries and the pulp tissue of a tooth in a three-dimensional projection is less than in a twodimensional projection; for this reason, it would be better to pay attention to the proximity to the pulp chamber and it is recommended to consider a smaller distance than the one the two-dimensional radiograph showed.