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BioMed Research International
Volume 2018 (2018), Article ID 4329050, 9 pages
Research Article

A CBCT Investigation of the Association between Sella-Turcica Bridging and Maxillary Palatal Canine Impaction

1Private Practice, 2021 NW 136th Ave, Apt 597, Sunrise, FL 33323, USA
2School of Orthodontics, Brooks Rehabilitation College of Health Sciences, Jacksonville University, Jacksonville, FL, USA
3Division of Orthodontics, School of Dentistry, University of Alberta, Edmonton, AB, Canada
4Department of Orthodontics, School of Dental Medicine, State University of New York at Buffalo, Buffalo, NY, USA

Correspondence should be addressed to Thikriat Al-Jewair

Received 23 October 2017; Accepted 20 December 2017; Published 22 February 2018

Academic Editor: Simona Tecco

Copyright © 2018 Pamela M. Ortiz et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Objectives. To investigate the association between unilateral/bilateral maxillary canine impaction and sella-turcica bridging using CBCT imaging. Methods. This retrospective comparative study analyzed 76 CBCT images of the craniofacial complex including sella-turcica. The impacted cuspid group consisted of thirty-eight subjects (7 males, 31 females; mean age, 14.6 ± 3.2 years) diagnosed with unilateral (left , right ) or bilateral () palatal canine impaction. The control group included thirty-eight subjects matched by sex (7 males, 31 females; mean age, 19.5 ± 3.6 years) with no impaction. Multinomial logistic regression analysis was used to determine the association between unilateral/bilateral canine impaction and right and left sella-turcica bridging. Results. The prevalence of sella-turcica bridging was 59.3% and 50% in the impacted canine and control groups, respectively. Although the odds for unilateral canine impaction were increased in the right and left sella-turcica bridging groups compared to the controls, the difference was not statistically significant. The risk of bilateral impaction was different between the two sides of sella-turcica bridging, but, again, the findings were not statistically significant. Conclusion. Contrary to previous 2D studies, there is no statistically significant association between unilateral/bilateral palatal canine impaction and sella-turcica bridging when using 3D CBCT.