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Treatment of skeletal open bite using a navigation system: CAD/CAM osteotomy and drilling guides combined with pre-bent titanium plates.

Authors
  • Du, W1
  • Chen, G1
  • Bai, D1
  • Xue, C1
  • Fei, W2
  • Luo, E3
  • 1 State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China. , (China)
  • 2 Department of Stomatology, Sichuan Academy of Medical Science & Sichuan Provincial Peoples Hospital, Chengdu, PR China. Electronic address: [email protected] , (China)
  • 3 State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China. Electronic address: [email protected] , (China)
Type
Published Article
Journal
International journal of oral and maxillofacial surgery
Publication Date
Sep 19, 2018
Identifiers
DOI: 10.1016/j.ijom.2018.08.012
PMID: 30243828
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Severe skeletal open bite associated with posterior vertical maxillary excess and mandibular deformity is considered a difficult problem in orthodontic and surgical treatment. This study used a navigation system for the correction of severe skeletal open bite in order to accurately transfer the virtual plan to the actual operation and achieve precise rigid internal fixation in bimaxillary osteotomies of the jaws. Twelve patients with a severe skeletal open bite associated with vertical maxillary excess and mandibular deformity were recruited. All patients underwent Le Fort I osteotomy and bilateral sagittal split ramus osteotomy with the guidance of this navigation system. Computed tomography and cephalometric examinations were performed to evaluate the correction of the deformity. Deviations between the simulated plan and actual postoperative outcome were measured to determine the precision of the surgery. Satisfactory and stable results were achieved in all patients postoperatively, without complications or relapse during follow-up. Photographs and cephalometric evaluations showed that the facial profile and occlusion were improved. Assessment of the deviations between the simulated plan and actual postoperative outcome showed that the navigation system can precisely transfer the virtual plan to the actual operation. The results suggest that the navigation system can accurately transfer the virtual plan to the actual operation during bimaxillary jaw osteotomies, without relapse, in patients with a severe skeletal open bite. Copyright © 2018. Published by Elsevier Ltd.

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