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Early orthognathic surgery with three-dimensional image simulation during presurgical orthodontics in adults

Authors
 Kang, Sang-Hoon ; Kim, Moon-Key ; Lee, Sang-Hwy ; Park, Wonse ; Lee, Ji-Yeon ; Park, Sun-Yeon 
Citation
 Journal of Craniofacial Surgery, Vol.22(2) : 473~481, 2011 
Journal Title
 Journal of Craniofacial Surgery 
ISSN
 1049-2275 
Issue Date
2011
Abstract
To correct dentofacial deformities, three-dimensional skeletal analysis and computerized orthognathic surgery simulation are used to facilitate accurate diagnoses and surgical plans. Computed tomography imaging of dental occlusion can inform three-dimensional facial analyses and orthognathic surgical simulations. Furthermore, three-dimensional laser scans of a cast model of the predetermined postoperative dental occlusion can be used to increase the accuracy of the preoperative surgical simulation. In this study, we prepared cast models of planned postoperative dental occlusions from 12 patients diagnosed with skeletal class III malocclusions with mandibular prognathism and facial asymmetry that had planned to undergo bimaxillary orthognathic surgery during preoperative orthodontic treatment. The data from three-dimensional laser scans of the cast models were used in three-dimensional surgical simulations. Early orthognathic surgeries were performed based on three-dimensional image simulations using the cast images in several presurgical orthodontic states in which teeth alignment, leveling, and space closure were incomplete. After postoperative orthodontic treatments, intraoral examinations revealed that no patient had a posterior open bite or space. The two-dimensional and three-dimensional skeletal analyses showed that no mandibular deviations occurred between the immediate and final postoperative states of orthodontic treatment. These results showed that early orthognathic surgery with three-dimensional computerized simulations based on cast models of predetermined postoperative dental occlusions could provide early correction of facial deformities and improved efficacy of preoperative orthodontic treatment. This approach can reduce the decompensation treatment period of the presurgical orthodontics and contribute to efficient postoperative orthodontic treatments.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/94979
DOI
10.1097/SCS.0b013e318207b95c
Appears in Collections:
1. 연구논문 > 2. College of Dentistry > Dept. of Advanced General Dentistry
1. 연구논문 > 2. College of Dentistry > Dept. of Orthodontics
1. 연구논문 > 2. College of Dentistry > Dept. of Oral and Maxillofacial Surgery
Yonsei Authors
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Link
 http://ovidsp.ovid.com/ovidweb.cgi?T=JS&CSC=Y&NEWS=N&PAGE=fulltext&AN=00001665-201103000-00023&LSLINK=80&D=ovft
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