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Three-dimensional finite element analyses of all-ceramic posterior fixed partial dentures with different designs.
Umeå University, Faculty of Medicine, Odontology, Prosthetic Dentistry.
2007 (English)In: The International Journal of Prosthodontics, Vol. 20, no 1, 89-91 p.Article in journal (Refereed) Published
Abstract [en]

The aim was to evaluate the influence on the stress distribution patterns in and the magnitude of stresses on fixed partial dentures (FPDs) under different anatomic and design conditions. Three-dimensional finite element models of posterior 3-unit all-ceramic FPDs were created with and without periodontal ligaments, with different radii of curvature at the embrasure area, and in a curve shape with a periodontal ligament. The model with a periodontal ligament showed 40% higher stress values compared to the no-ligament model. A smaller radius of curvature resulted in 20% to 40% higher stress values. The curved model increased stress values at the distal connector by 65% compared to the straight model. Support by teeth, occlusal curvature, and a small radius of curvature at the embrasure area negatively affect stress distribution patterns in the connector area of all-ceramic FPDs.

Place, publisher, year, edition, pages
2007. Vol. 20, no 1, 89-91 p.
URN: urn:nbn:se:umu:diva-7298PubMedID: 17319371OAI: diva2:146969
Available from: 2008-01-08 Created: 2008-01-08 Last updated: 2011-01-11Bibliographically approved

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Molin, Margareta
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