Document Detail

The anterior component of occlusal force. Part 1. Measurement and distribution.
MedLine Citation:
PMID:  2589259     Owner:  NLM     Status:  MEDLINE    
The purpose of this investigation was to design and develop instrumentation to measure the anterior component of occlusal force generated by a single tooth under a known axial load. An additional objective was to quantify the distribution and dissipation of this force as it progressed anteriorly. The anterior component of the occlusal force generated by the left second molar was calculated from frictional force measurements at each contact mesial to the first molars in both dental arches. The distribution of this force and its dissipation were determined for 15 subjects. When a load was placed on the posterior teeth, the anterior component of the occlusal force was found to progress anteriorly through interproximal contacts and not to progress beyond open contacts. The mean magnitude of this force for a conservative occlusal load of 20 pounds was unexpectedly high: 5 pounds against the premolars and 1 pound against the canines. In some subjects this force crossed the dental midline and continued around the arch to the canine of the contralateral side. The distribution and dissipation of the anterior component of the occlusal force anteriorly approximated an exponential decay function.
T E Southard; R G Behrents; E A Tolley
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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:  96     ISSN:  0889-5406     ISO Abbreviation:  Am J Orthod Dentofacial Orthop     Publication Date:  1989 Dec 
Date Detail:
Created Date:  1990-01-10     Completed Date:  1990-01-10     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:  493-500     Citation Subset:  D; IM    
Department of Orthodontics, College of Dentistry, University of Tennessee, Memphis.
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MeSH Terms
Bite Force*
Dental Occlusion*
Dental Stress Analysis / instrumentation*
Equipment Design
Comment In:
Am J Orthod Dentofacial Orthop. 1990 May;97(5):24A-25A   [PMID:  2333848 ]

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