Stresses in Teeth and Overlying Crowns

Liliana Sandu; Florin Topală; Sorin Porojan

doi:10.4028/www.scientific.net/AMR.457-458.567

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 457-458Stresses in Teeth and Overlying Crowns

Stresses in Teeth and Overlying Crowns

Abstract:

A complete cast crown allows the operator to modify axial tooth contour. The margin should be smooth and distinct and its width has to allow adequate bulk of metal at the margin. The objective of this study was to evaluate, by finite element analysis, the influence of different degree of taper and marginal designs for cast crown preparations, on the stress distribution in teeth and crowns. As experimental model an upper first molar was used. The geometry of the intact tooth were obtained by 3D scanning. The tooth preparations and the complete cast crowns were designed. Models were exported in a finite element analysis software for structural simulations. Von Mises equivalent stresses were calculated and their distribution was plotted graphically. Numerical simulations provide a biomechanical explanation for stress distribution in prepared teeth and overlying crowns.

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Periodical:

Advanced Materials Research (Volumes 457-458)

Pages:

567-571

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.457-458.567

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Online since:

January 2012

Authors:

Liliana Sandu, Florin Topală, Sorin Porojan

Keywords:

Crown, Finite Element Analysis (FEA), Stress, Tooth

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References

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