Assessment of asymmetry in a normal occlusion sample and asymmetric patients with three-dimensional cone beam computed tomography: a study for a transverse reference plane

The Angle Orthodontist
Je Uk ParkYoonji Kim

Abstract

To characterize symmetrical features of patients with facial asymmetry and thus to find the most reliable horizontal reference lines easily used in three-dimensional images. The hypothesis was that there is a difference in the location of bilateral landmarks of the upper skull between the normal occlusion sample and skeletal Class III patients with asymmetry. Group 1 (normal occlusion sample) was composed of 20 Korean adults with normal occlusion and no noticeable asymmetry. Groups 2 through 4 were selected from patients who were diagnosed as skeletal Class III malocclusion and grouped according to the extent of asymmetry (group 2: symmetric mandible, no maxillary cant; group 3: asymmetric mandible, no maxillary cant; group 4: asymmetric mandible, more than 4 mm maxillary cant measured at maxillary first molars). Three-dimensional cone beam computed tomography images were taken before treatment, and bilateral landmarks of the skull were located and their vertical and horizontal differences compared. No statistically significant difference was noted in the position of bilateral landmarks between groups, except for AG (P < .05). AG showed significant differences in vertical dimension (P < .001) and in horizontal dimension (P < .0...Continue Reading

References

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Citations

Nov 19, 2014·The Angle Orthodontist·Murat TozluFulya Ozdemir
May 21, 2015·Dental press journal of orthodontics·Cintia Helena Zingaretti JunqueiraDaniela Gamba Garib
Dec 24, 2014·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Zeliha Muge BakaZehra Ileri
Sep 12, 2019·Dental press journal of orthodontics·Guilherme ThiesenKi Beom Kim
Jun 9, 2020·Maxillofacial Plastic and Reconstructive Surgery·Hua-Lian CaoPill-Hoon Choung
Jan 9, 2013·Oral Diseases·R M Yáñez-VicoE Solano-Reina
Aug 2, 2021·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Hyung-Kyu Noh, Hyo-Sang Park
Aug 14, 2021·Clinical Oral Investigations·Nermin MorganReinhilde Jacobs

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