Document Detail

Orthodontic tooth movement analysed by the Finite Element Method.
MedLine Citation:
PMID:  6525394     Owner:  NLM     Status:  MEDLINE    
The position of the instantaneous centre of rotation (ICR) of a maxillary central incisor has been calculated using the Finite Element Method. It is shown that the centre of rotation is insensitive to the elastic properties of the periodontal ligament when Poisson's ratio (v) is in the range 0-0.45. The position of the ICR is independent of load but dependent on the point of loading, becoming less apical as the loading position moves above the cervical margin. This dependence when used in conjunction with the clinical findings of Stephens, suggests an inverse linear relationship between the ICR and rate of retraction.
K R Williams; J T Edmundson
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Biomaterials     Volume:  5     ISSN:  0142-9612     ISO Abbreviation:  Biomaterials     Publication Date:  1984 Nov 
Date Detail:
Created Date:  1985-03-28     Completed Date:  1985-03-28     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8100316     Medline TA:  Biomaterials     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  347-51     Citation Subset:  IM    
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MeSH Terms
Dental Stress Analysis
Statistics as Topic
Stress, Mechanical
Tensile Strength
Tooth Movement*

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

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