Journal Article

The value of the centre of rotation in initial and longitudinal tooth and bone displacement

Guy De Pauw, Luc Dermaut and Hugo De Bruyn

in The European Journal of Orthodontics

Published on behalf of European Orthodontics Society

Volume 25, issue 3, pages 285-291
Published in print June 2003 | ISSN: 0141-5387
Published online June 2003 | e-ISSN: 1460-2210 | DOI: http://dx.doi.org/10.1093/ejo/25.3.285
The value of the centre of rotation in initial and longitudinal tooth and bone displacement

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Force application on teeth and bone structures results in orthodontic and orthopaedic movements. The effect of force application during different time intervals (initial and longitudinal displacements) can be evaluated by describing the displacement vectors or by constructing the centres of rotation of the displacements.

The aim of this investigation was to review different experimental studies to compare the position of the centre of rotation (CR) with the displacement vectors of the object (tooth or bone) after force application. The results indicate that the measuring procedure and the use of the CR to describe the displacement are very sensitive: a large discrepancy in the position of the CR does not necessarily lead to a major change in the displacement vector of the object.

Displacement vectors seem to be more appropriate in describing both initial and longitudinal tooth or bone displacements.

Journal Article.  0 words. 

Subjects: Restorative Dentistry and Orthodontics

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