Document Detail


Long-term skeletal and profile stability after surgical-orthodontic treatment of Class II and Class III malocclusion.
MedLine Citation:
PMID:  23196069     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: The purpose of this perspective research was to study the long-term stability of skeletal, dentoalveolar and soft tissue after orthognathic surgery in subjects presenting with Class II and Class III malocclusions. METHODS: The available digitized cephalometric radiographs, including pretreatment (t(0)), presurgery (t(1)), a minimum of 12 months postsurgery (t(2)) and at least 3 years after the orthosurgery treatment (t(3)) were taken between 1998 and 2010. In Group 1 mandibular advancement and in Group 2 mandibular advancement and maxillary impaction surgery were performed for correction of Class II. In Group 3 maxillary advancement and in Group 4 surgical maxillary advancement with mandibular setback, for correction of Class III. RESULTS: In all the phases mandibular length was shorter in Group 1, and the inferior third of the face was longer in Group 2. Before the surgery there was greater maxillary deficiency in Group 3 than Group 4 and mandibular length was longer in Group 4. CONCLUSION: In Groups 1 and 2, at retention phase, relapse occurred due to the increase in mandibular plane, whereas the surgeries performed in Groups 3 and 4 remained stable.
Authors:
Ana de Lourdes Sá de Lir; Walter Leal de Moura; Antonio Carlos Oliveira Ruellas; Margareth Maria Gomes Souza; Lincoln Issamu Nojima
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-26
Journal Detail:
Title:  Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery     Volume:  -     ISSN:  1878-4119     ISO Abbreviation:  J Craniomaxillofac Surg     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8704309     Medline TA:  J Craniomaxillofac Surg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.
Affiliation:
Department of Orthodontics, Faculty of Dentistry, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil. Electronic address: anadelourdessl@hotmail.com.
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