Skip Navigation LinksHome > November 2013 - Volume 24 - Issue 6 > Augmented Corticotomy-Assisted Presurgical Orthodontics of C...
Journal of Craniofacial Surgery:
doi: 10.1097/SCS.0b013e3182a245b3
Original Articles

Augmented Corticotomy-Assisted Presurgical Orthodontics of Class III Malocclusions: A Cephalometric and Cone-Beam Computed Tomography Study

Wang, Bo DDS, MSD*; Shen, GuoFang DDS, PhD; Fang, Bing DDS, PhD*; Yu, HongBo DDS, MSD; Wu, Yong DDS, MSD*

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Abstract

Objective: The purpose of this study was to evaluate mandibular incisor decompensation and the surrounding periodontal status with augmented corticotomy-assisted presurgical orthodontics of class III patients.

Methods: Fifty-six surgical class III patients were enrolled in this study, 26 of whom chose augmented corticotomy-assisted presurgical orthodontics (G1), and 30 chose conventional procedures (G2). Cone-beam computed tomography images and lateral cephalograms were obtained from each patient before and after presurgical orthodontics. Measurements of variables were compared using Student t tests and separate variance estimation t tests.

Results: The amount of mandibular incisor decompensation and the increase in labial alveolar bone thickness in G1 were greater than those in G2 during presurgical orthodontics (P < 0.001), however, root resorption (P < 0.001), the decrease in lingual alveolar bone thickness (P < 0.001), and vertical alveolar bone loss on both labial (P < 0.05) and lingual sides (P < 0.001) were less in G1 than in G2.

Conclusions: Sufficient mandibular incisor decompensation and better periodontal preservation were achieved with augmented corticotomy-assisted presurgical orthodontics for class III patients compared with traditional procedures.

© 2013 by Mutaz B. Habal, MD.

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