Initial stress differences between tipping and torque movements. A three-dimensional finite element analysis

The aim of this study was to analyse the distribution of the stress on dental and periodontal structures when a simple tipping dental movement or torque movement is produced. A tridimensional computer model based on finite element techniques was used for this purpose. The model of the lower canine w...

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Bibliographic Details
Published in:European journal of orthodontics 1996-08, Vol.18 (4), p.329-339
Main Authors: Puente, Martín I., Galbán, Luciano, Cobo, Juan M.
Format: Article
Language:English
Subjects:
Alveolar Process - physiology
Cuspid - physiology
Dental Stress Analysis
Dentistry
Humans
Models, Biological
Periodontal Ligament - physiology
Tooth Movement Techniques
Tooth Root - physiology
Torque
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Summary:The aim of this study was to analyse the distribution of the stress on dental and periodontal structures when a simple tipping dental movement or torque movement is produced. A tridimensional computer model based on finite element techniques was used for this purpose. The model of the lower canine was constructed on the average anatomical morphology and 396 isoparametric elements were considered. The three principal stresses (maximum, minimum and intermediate) and Von Mises stress were determined at the root, alveolar bone and periodontal ligament (PDL). It was observed how the distribution of stress is not the same for the three structures studied. In all loading cases for bucco-lingually directed forces, the three principal stresses were very similar in the PDL. The dental apex and bony alveolar crest zones are the areas that suffer the greatest stress when these kind of movements are produced.
ISSN:0141-5387
1460-2210
DOI:10.1093/ejo/18.4.329