Document Detail


Effects of chincap force on the timing and amount of mandibular growth associated with anterior reversed occlusion (Class III malocclusion) during puberty.
MedLine Citation:
PMID:  3466526     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The effects of chincap force on the amount and timing of mandibular growth associated with anterior reversed occlusion (Class III malocclusion) were studied during the pubertal period in 26 Japanese girls. Their records consisted of serial lateral cephalometric roentgenograms, wrist-hand roentgenograms, periodic data of standing height, and time records of chincap use. The stage of pubertal growth was first evaluated by the change of ossification events of hand bones and incremental change of standing height. Mandibular measurements were assessed on this maturational basis. The findings indicated that application of chincap force (500 to 600 g, average 11 to 12 hours per day) hardly alters the general pattern of mandibular growth timing at puberty. With regard to inhibition of growth amounts, the effects seem to take place independently in different parts of the mandible. The length of time of force application per day in the range from 6 to 15 hours did not have a significant role in the change of growth amount and/or timing in the clinical use of the chincap. Individual reactions to the chincap force varied in the effects on mandibular growth variables. Further study of the effects of retrusive orthopedic force on the mandible during the rapid growth phase of puberty is indicated.
Authors:
H Mitani; H Fukazawa
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Publication Detail:
Type:  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:  90     ISSN:  0889-5406     ISO Abbreviation:  Am J Orthod Dentofacial Orthop     Publication Date:  1986 Dec 
Date Detail:
Created Date:  1987-01-06     Completed Date:  1987-01-06     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8610224     Medline TA:  Am J Orthod Dentofacial Orthop     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  454-63     Citation Subset:  D; IM    
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Age Determination by Skeleton
Cephalometry
Child
Extraoral Traction Appliances*
Female
Humans
Malocclusion / therapy*
Malocclusion, Angle Class III / physiopathology,  therapy*
Mandible / anatomy & histology,  growth & development*
Maxillofacial Development
Orthodontic Appliances, Removable*
Puberty*
Stress, Mechanical
Time Factors

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


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