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Advanced Dental Care 2018
Dentistry and Craniofacial Research
ISSN: 2576-392X
Page 41
October 08-09, 2018
Moscow, Russia
26
th
International Conference on
Advanced Dental Care
C
onventional lateral cephalometric in a dental panoramic X-ray
unit has popularly been used for orthodontic assessment,
treatment, and follow-up of patients. Dentists, however, hope for
three-dimensional (3D) cephalometric images to achieve more
accurate presurgical assessment and planning. In this study, we
investigated a method to obtain 3D cephalometric images using
two small field-of-view (FOV) datasets of cone-beam computed
tomography (CBCT). The method involved two separate small-
FOV (9-cm high × 16-cm wide) CBCT scans, first centered
on the lower part of the head in natural upright position and
then centered on the upper part in tilted position, and a phase-
based volume stitching technique. We performed a systematic
simulation and experiment to validate the proposed method and
evaluated the image characteristics. In the experiment, we utilized
a commercially-available dental CBCT system that consisted
of an X-ray tube operated at 70 kVp and 5 mA and a flat-panel
detector having a 198-m pixel resolution. The results indicated
that the proposed method effectively achieved 3D extended-FOV
cephalometric images covering all the necessary facial structures
from the larynx to the forehead.
hscho1@yonsei.ac.kr3D cephalometric analysis based on phase-
based volume stitching using two small field-of-
view datasets of dental cone-beam CT
Hyosung Cho
Yonsei University, Republic of South Korea
Dent Craniofac Res 2018, Volume 3
DOI: 10.21767/2576-392X-C4-012