Abstract
Traditionally, maxillary and mandibular skeletal widths and buccolingual inclination
of posterior teeth are evaluated by using posteroanterior (PA) cephalogram and dental
casts. However, it is difficult to identify the landmarks and make a diagnosis due
to the superimposed structures on the PA cephalogram. As for the dental casts, they
can neither reveal skeletal dimensions of maxilla and mandible, nor the root positions
in the alveolar bone. Nowadays, the advent of CBCT enables clinicians to view craniofacial
structures in three planes of space without any obstruction or superimposition of
structures. In this article, a CBCT analysis on the transverse dimension is introduced.
The maxillary and mandibular skeletal widths at different tooth levels, buccolingual
inclination of each tooth, and their root positions in the alveolar bone can be determined.
Thus, a proper transverse diagnosis can be made.
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Published online: February 11, 2019
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