Document Detail

Effects of reverse headgear treatment on sagittal correction in girls born with unilateral complete cleft lip and cleft palate--skeletal and dental changes.
MedLine Citation:
PMID:  8638559     Owner:  NLM     Status:  MEDLINE    
Patients with cleft lip and cleft palate often develop maxillary retrognathism. This is due to the combined effects of the congenital deformity and surgical repairs. Early protraction of the maxilla with extraoral forces helps to achieve more balanced skeletal harmony and favorable occlusion for future growth to occur. The purpose of the present study is to investigate the proportion of the skeletal and dental changes contributing to the improvement in a group of Southern Chinese girls born with unilateral complete cleft lip and cleft palate treated by the reverse headgear. This study only focused on treating a homogenous sample group, i.e., only girls with unilateral complete cleft lip and cleft palate. This design was deliberate so as to avoid having boys and girls with various types of cleft all pooled together for analyses as seen in most of the previous reports. In addition, comparison was made with girls matched in having a similar deformity, presenting a similar skeletal structure and maturity status to reveal the genuine treatment effect. The 9.7 months of reverse headgear treatment improved the sagittal jaw relationship (p < 0.01) and overjet (p < 0.01), which was effected by about two-thirds skeletal and one-third dental changes.
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics     Volume:  109     ISSN:  0889-5406     ISO Abbreviation:  Am J Orthod Dentofacial Orthop     Publication Date:  1996 Feb 
Date Detail:
Created Date:  1996-07-11     Completed Date:  1996-07-11     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8610224     Medline TA:  Am J Orthod Dentofacial Orthop     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  140-7     Citation Subset:  D; IM    
Department of Children's Dentistry and Orthodontics, Faculty of Dentistry, University of Hong Kong.
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MeSH Terms
Case-Control Studies
Cleft Lip / pathology,  surgery,  therapy*
Cleft Palate / pathology,  surgery,  therapy*
Extraoral Traction Appliances*
Facial Bones / pathology*
Incisor / pathology
Malocclusion / pathology,  therapy
Mandible / pathology
Maxilla / abnormalities,  growth & development
Maxillofacial Development
Molar / pathology
Orthodontic Appliance Design
Tooth / pathology*

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

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