+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Finite element analysis of the residual thermal stresses on functionally gradated dental restorations



Finite element analysis of the residual thermal stresses on functionally gradated dental restorations



Journal of the Mechanical Behavior of Biomedical Materials 50: 123-130



The aim of this work was to study, using the finite element method (FEM), the distribution of thermal residual stresses arising in metal-ceramic dental restorations after cooling from the processing temperature. Three different interface configurations were studied: with conventional sharp transition; one with a 50% metal-50% ceramic interlayer; and one with a compositionally functionally gradated material (FGM) interlayer. The FE analysis was performed based on experimental data obtained from Dynamic Mechanical Analysis (DMA) and Dilatometry (DIL) studies of the monolithic materials and metal/ceramic composites. Results have shown significant benefits of using the 50% metal-50% ceramic interlayer and the FGM interlayer over the conventional sharp transition interface configuration in reduction of the thermal residual stress and improvement of stress profiles. Maximum stresses magnitudes were reduced by 10% for the crowns with 50% metal-50% ceramic interlayer and by 20% with FGM interlayer. The reduction in stress magnitude and smoothness of the stress distribution profile due to the gradated architectures might explain the improved behavior of these novel dental restorative systems relative to the conventional one, demonstrated by in-vitro studies already reported in literature.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 057879143

Download citation: RISBibTeXText

PMID: 26122789

DOI: 10.1016/j.jmbbm.2015.06.003


Related references

Viscoelastic finite element analysis of residual stresses in porcelain-veneered zirconia dental crowns. Journal of the Mechanical Behavior of Biomedical Materials 82: 202-209, 2018

3D finite element analysis on esthetic indirect dental restorations under thermal and mechanical loading. Medical and Biological Engineering and Computing 48(11): 1107-1113, 2011

The influence of cavity shape on the stresses in composite dental restorations: a finite element study. Computer Methods in Biomechanics and Biomedical Engineering 5(5): 343-349, 2003

Thermal residual stresses near the interface between plasma-sprayed hydroxyapatite coating and titanium substrate: finite element analysis and synchrotron radiation measurements. Journal of Biomedical Materials Research. Part a 70(1): 20-27, 2004

Residual thermal stresses in the pull-out specimen: A finite element calculation. Journal of Materials Science 30(18): 4651-4658, 1995

Experimental and finite element study of residual thermal stresses in veneered Y-TZP structures. Ceramics International 42(7): 9214-9221, 2016

Elastic-plastic finite elements analysis of transient and residual stresses in ceramo-metal restorations. Journal of Biomechanics 42(13): 2104-2110, 2009

Thermal-mechanical study of functionally graded dental implants with the finite element method. Journal of Biomedical Materials Research. Part a 80(1): 146-158, 2006

Analysis of stresses during the polymerization shrinkage of self-curing resin cement in indirect restorations: a finite-element study. Indian Journal of Dental Research 25(6): 755-757, 2015

An adaptive finite-element approach for the analysis of dental restorations. Journal of Biomedical Engineering 15(5): 401-408, 1993

Finite-element analysis and X-ray measurement of the residual stresses of ceramic/metal joints. Journal of Materials Processing Technology 67(1-3): 167-172, 1997

Finite element formulation and analysis for an arterial wall with residual and active stresses. Computer Methods in Biomechanics and Biomedical Engineering 18(11): 1143-1159, 2014

The effects of two attachment types on the stresses introduced to the mandibular residual ridge: a 3D finite element analysis. Quintessence International 44(8): 585-590, 2015

3D Finite element analysis of functionally graded multilayered dental ceramic cores. Dental Materials Journal 33(4): 458-465, 2014

The use of functionally graded dental crowns to improve biocompatibility: a finite element analysis. Computer Methods in Biomechanics and Biomedical Engineering 21(2): 161-168, 2018