Influence of Misfit on the Occurrence of Porcelain Veneer Fractures in Implant-Supported Metal-Ceramic Fixed Dental Prostheses. Part 2: A Three-Dimensional Finite Element Analysis

2020 ◽  
Author(s):  
Martin Janda ◽  
Christel Larsson ◽  
Nikos Mattheos
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Element Analysis ◽  
Dental Prostheses ◽  
Metal Ceramic ◽  
Dimensional Finite Element ◽  
Fixed Dental Prostheses ◽  
Three Dimensional Finite Element ◽  
Supported Metal

scholarly journals Three-Dimensional Finite Element Analysis of Anterior Two-Unit Cantilever Resin-Bonded Fixed Dental Prostheses

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Filip Keulemans ◽  
Akikazu Shinya ◽  
Lippo V. J. Lassila ◽  
Pekka K. Vallittu ◽  
Cornelis J. Kleverlaan ◽  
...  
Keyword(s):  
Finite Element ◽  
Maximum Stress ◽  
Three Dimensional ◽  
Element Analysis ◽  
Framework Materials ◽  
Dental Prostheses ◽  
Reinforced Composite ◽  
Dimensional Finite Element ◽  
Fixed Dental Prostheses ◽  
Three Dimensional Finite Element

The aim of this study was to evaluate the influence of different framework materials on biomechanical behaviour of anterior two-unit cantilever resin-bonded fixed dental prostheses (RBFDPs). A three-dimensional finite element model of a two-unit cantilever RBFDP replacing a maxillary lateral incisor was created. Five framework materials were evaluated: direct fibre-reinforced composite (FRC-Z250), indirect fibre-reinforced composite (FRC-ES), gold alloy (M), glass ceramic (GC), and zirconia (ZI). Finite element analysis was performed and stress distribution was evaluated. A similar stress pattern, with stress concentrations in the connector area, was observed in RBFDPs for all materials. Maximal principal stress showed a decreasing order: ZI > M > GC > FRC-ES > FRC-Z250. The maximum displacement of RBFDPs was higher for FRC-Z250 and FRC-ES than for M, GC, and ZI. FE analysis depicted differences in location of the maximum stress at the luting cement interface between materials. For FRC-Z250 and FRC-ES, the maximum stress was located in the upper part of the proximal area of the retainer, whereas, for M, GC, and ZI, the maximum stress was located at the cervical outline of the retainer. The present study revealed differences in biomechanical behaviour between all RBFDPs. The general observation was that a RBFDP made of FRC provided a more favourable stress distribution.

Finite Element Analysis of Nonuniformity of Tires with Imperfections5

2007 ◽  
Vol 35 (3) ◽  
pp. 226-238 ◽  
Author(s):  
K. M. Jeong ◽  
K. W. Kim ◽  
H. G. Beom ◽  
J. U. Park
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Element Model ◽  
Radial Force ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Dimensional Finite Element ◽  
Force Variation ◽  
Three Dimensional Finite Element

Abstract The effects of variations in stiffness and geometry on the nonuniformity of tires are investigated by using the finite element analysis. In order to evaluate tire uniformity, a three-dimensional finite element model of the tire with imperfections is developed. This paper considers how imperfections, such as variations in stiffness or geometry and run-out, contribute to detrimental effects on tire nonuniformity. It is found that the radial force variation of a tire with imperfections depends strongly on the geometrical variations of the tire.

Sign in / Sign up

Export Citation Format

Share Document