Cone beam computed tomography analysis in 3D position of maxillary denture

Abstract

<jats:title>Abstract</jats:title><jats:p>The dynamic correlation between teeth and denture morphology as well as the morphological positions needs to be explored.</jats:p><jats:sec id="j_med-2017-0049_s_007_w2aab2b8d261b1b7b1aab1c16b2Aa"><jats:title>Methodology</jats:title><jats:p>63 adult patients with skeletal class III malocclusions that met the inclusion criteria were enrolled and imaged with Cone Beam Computed Tomography (CBCT), and Digital Imaging and Communications in Medicine (DICOM) data were collected. The torque angle and axial inclination were measured and analyzed for the corona, root, and entire body of every tooth on the maxilla.</jats:p></jats:sec><jats:sec id="j_med-2017-0049_s_008_w2aab2b8d261b1b7b1aab1c16b3Aa"><jats:title>Results</jats:title><jats:p>There is a statistically significant difference between the coronal axial inclination/coronal torque angle for the skeletal class III malocclusion cases and Andrew’s six keys of occlusion. On the sagittal plane of the maxillary denture (except that the secondary molar is inclined medial-distally), the remaining teeth are inclined towards the labia with slightly larger angles compared to the normal occlusion. In the coronal direction, the maxillary anterior teeth tend to have a corona that inclines medial-distally, whereas the posterior teeth have a buccal inclination compared to the normal occlusion.</jats:p></jats:sec><jats:sec id="j_med-2017-0049_s_009_w2aab2b8d261b1b7b1aab1c16b4Aa"><jats:title>Conclusion</jats:title><jats:p>Sagittal and transversal compensations prevail in maxillary dentures; for the camouflaged treatment design for skeletal class III, there is limited scope of sagittal and transversal movements on the maxillary denture.</jats:p></jats:sec>