Document Detail

Comparison of transverse dimensional changes in surgical skeletal Class III patients with and without presurgical orthodontics.
MedLine Citation:
PMID:  20493619     Owner:  NLM     Status:  MEDLINE    
PURPOSE: To investigate transverse dimensional changes of dental arches in surgical skeletal Class III patients with and without presurgical orthodontics. MATERIALS AND METHODS: Thirty-six patients with skeletal Class III were included and grouped into those with or without presurgical orthodontics. Eighteen patients (mean age, 22.3 +/- 3.8 years) with presurgical orthodontics (mean presurgical orthodontic treatment time, 176.3 +/- 38.3 days) were in the orthodontics-first (OF) group; the other 18 patients (mean age, 23.3 +/- 4.2 years) without presurgical orthodontics were in the surgery-first (SF) group. The posteroanterior cephalograms initially, before surgery, immediately after surgery, and 1 year after surgery were traced and analyzed. The inclination change of canines and molars was measured to interpret the changes of transverse dimension in both dental arches. Paired and unpaired t tests were performed to test intra- and intergroup differences (P < .05). RESULTS: Dental changes in transverse planes demonstrated a similar trend in both groups. The maxillary canines were buccally tilted (SF vs OF group, 1.7 degrees vs 1.9 degrees), the maxillary molars were lingually tilted (SF group vs OF group, -4.7 degrees vs -1.0 degrees), the mandibular canines were lingually tilted (SF group vs OF group, 2.9 degrees vs 2.8 degrees), and the mandibular molars were buccally tilted (SF group vs OF group, -6.1 degrees vs -5.4 degrees). CONCLUSION: The magnitude and trend of transverse dental changes in patients with surgical skeletal Class III were similar whether receiving presurgical orthodontics or not.
Yu-Chih Wang; Ellen Wen-Ching Ko; Chiung-Shing Huang; Yu-Ray Chen; Teruko Takano-Yamamoto
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Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2010-05-20
Journal Detail:
Title:  Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons     Volume:  68     ISSN:  1531-5053     ISO Abbreviation:  J. Oral Maxillofac. Surg.     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-07-19     Completed Date:  2010-08-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8206428     Medline TA:  J Oral Maxillofac Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1807-12     Citation Subset:  AIM; D; IM    
Copyright Information:
Copyright 2010 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.
Department of Craniofacial Orthodontics, Chang Gung Memorial Hospital, Taipei, Taiwan.
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MeSH Terms
Cuspid / physiopathology
Dental Arch / pathology*
Malocclusion, Angle Class III / pathology*,  surgery,  therapy*
Molar / physiopathology
Orthodontics, Corrective*
Orthognathic Surgical Procedures*
Postoperative Care
Preoperative Care
Retrospective Studies
Young Adult

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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