Abstract
Objective To evaluate the clinical application of 3D cephalometric in orthodontics and compare conventional cephalometric with 3D cephalometric, which reconstructed by cone beam computed tomography (CBCT) images. Methods From May 2012 to December 2012, there were 13 patients going with orthodontic therapy, among which 5 patients with severe dental maxillofacial malocclusion and 8 patients with impacted tooth. All patients were detected by regular pantomography and lateral cephalogram, then CBCT scans with consent. All patients were detected by 3D cephalometric analytics with professional software compared with conventional cephalometric. Results 3D constructed CBCT form showed more accurate images.Compared with 2D, 3D cephalometric measurements showed differences in ANB, MP-FH, L1-NB, SNA, U1-NA parameters(t=2.63, 2.59, 2.68, 3.08, 3.21; P 0.05). Conclusions CBCT combined with 3D cephalometric takes great advantage to conventional cephalometric. It has important clinical guidance to establish treatment scheme for patients with dental maxillofacial deformity. Key words: Orthodontics; Cone Beam computed tomography; Cephalometry
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