FRACTURE RESISTANCE, FINITE ELEMENT ANALYSIS AND WEIBULL RISK OF FAILURE FOR ENDODONTICALLY TREATED MOLARS RESTORED WITH LITHIUM DISILICATE AND HYBRID CERAMIC ENDOCROWNS WITH TWO PREPARATION DESIGNS

2017 ◽  
Vol 63 (4) ◽  
pp. 2803-2820
Author(s):  
Rania Amin ◽  
Mostafa Abdellatif ◽  
Heba Eltayeb
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Fracture Resistance ◽  
Lithium Disilicate ◽  
Element Analysis ◽  
Risk Of Failure ◽  
Hybrid Ceramic

scholarly journals Mechanical and thermal stress analysis of hybrid ceramic and lithium disilicate based ceramic CAD-CAM inlays using 3-D finite element analysis

2021 ◽  
Vol 24 (3) ◽  
Author(s):  
Sameh Mahmoud Nabih ◽  
Nady Ibrahim Mohamed Ibrahim ◽  
Ahmed Ramadan Elmanakhly
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Analysis ◽  
Lithium Disilicate ◽  
Ceramic Materials ◽  
Thermal Fluctuations ◽  
Element Analysis ◽  
Tooth Structure ◽  
Cad Cam ◽  
Hybrid Ceramic

Objectives: The aim of this study was to analyze mechanical and thermal stresses of hybrid ceramic and lithium disilicate based ceramic of CAD/CAM inlays using 3D Finite element analysis. Material and Methods: A three dimensions finite element model of permanent maxillary premolar designed according to standard anatomy with class II cavity preparation for inlay restored with two different ceramic materials:- 1- Hybrid ceramic (Vita Enamic), 2- Lithium disilicate based ceramic (IPS e.max CAD). Totally six runs were performed on the model as: One loading case for each restorative material was tested in stress analysis; seven points of loading with 140N vertically applied at palatal cusp tip and cusp slop, marginal ridges and central fossa while the models base was fixed as a boundary condition in the two cases. Two thermal analysis cases were performed for each restoration material by applying 5ºC and 55ºC on the crown surface including the restoration surface. Results: The results of all structures were separated from the rest of the model to analyze the magnitude of stress in each component. For each group, maximum stresses on restorative materials, cement, enamel, and dentin were evaluated separately. Both ceramic materials generated similar stress distribution patterns for all groups when a total occlusal load of 140 N was applied. Conclusion: Thermal fluctuations of temperature have a great influence on the stresses induced on both restoration and tooth structure. IPS e.max CAD produced more favorable stresses on the tooth structure than Vita Enamic.   KEYWORDS Ceramics; Finite element analysis; IPS e.max CAD; Lithium disilicate;  Vita Enamic.

Fatigue surviving, fracture resistance, shear stress and finite element analysis of glass fiber posts with different diameters

2015 ◽  
Vol 43 ◽  
pp. 69-77 ◽  
Author(s):  
Vinícius Felipe Wandscher ◽  
César Dalmolin Bergoli ◽  
Ariele Freitas de Oliveira ◽  
Osvaldo Bazzan Kaizer ◽  
Alexandre Luiz Souto Borges ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Shear Stress ◽  
Glass Fiber ◽  
Fracture Resistance ◽  
Element Analysis ◽  
Fiber Posts ◽  
Glass Fiber Posts ◽  
Different Diameters

Elastic Properties of Lithium Disilicate Versus Feldspathic Inlays: Effect on the Bonding by 3D Finite Element Analysis

2016 ◽  
Vol 27 (8) ◽  
pp. 741-747 ◽  
Author(s):  
Flávia Zardo Trindade ◽  
Luiz Felipe Valandro ◽  
Niek de Jager ◽  
Marco Antônio Bottino ◽  
Cornelis Johannes Kleverlaan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Elastic Properties ◽  
Lithium Disilicate ◽  
Element Analysis ◽  
3D Finite Element ◽  
3D Finite Element Analysis

Fracture risk of lithium-disilicate ceramic inlays: A finite element analysis

2013 ◽  
Vol 29 (12) ◽  
pp. 1244-1250 ◽  
Author(s):  
Christof Holberg ◽  
Philipp Winterhalder ◽  
Andrea Wichelhaus ◽  
Reinhard Hickel ◽  
Karin Huth
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Fracture Risk ◽  
Lithium Disilicate ◽  
Element Analysis ◽  
Ceramic Inlays

scholarly journals Finite element analysis and fracture resistance testing of a new intraradicular post

2012 ◽  
Vol 20 (4) ◽  
pp. 427-434 ◽  
Author(s):  
Eron Toshio Colauto Yamamoto ◽  
Clovis Pagani ◽  
Eduardo Galera da Silva ◽  
Pedro Yoshito Noritomi ◽  
André Yugou Uehara ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Fracture Resistance ◽  
Resistance Testing ◽  
Element Analysis

Effect of Intracoronal Depth of Teeth Restored with Endocrowns on Fracture Resistance: In Vitro and 3-dimensional Finite Element Analysis

2018 ◽  
Vol 44 (7) ◽  
pp. 1179-1185 ◽  
Author(s):  
Nereu Roque Dartora ◽  
Michele Bertoluzi de Conto Ferreira ◽  
Izabela Cristina Maurício Moris ◽  
Elisabeth Helena Brazão ◽  
Aloísio Oro Spazin ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Fracture Resistance ◽  
Element Analysis ◽  
3 Dimensional ◽  
Dimensional Finite Element

Moisture-Assisted Crack Growth in Polymer Adhesive-Glass Sandwich Geometries

1994 ◽  
Vol 338 ◽  
Author(s):  
J. E. Ritter ◽  
T. J. Lardner ◽  
G. C. Prakash ◽  
A. J. Stewart
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Crack Growth ◽  
Fracture Resistance ◽  
Epoxy Adhesive ◽  
Element Analysis ◽  
Smooth Interface ◽  
Inverted Microscope ◽  
Polymer Adhesive ◽  
Flexure Test

ABSTRACTMoisture-assisted crack growth in polymer/glass interfaces was measured as a function of the applied energy release using a four-point flexure test coupled with an inverted microscope. The specimens consisted of two glass plates bonded together with a thin layer of epoxy adhesive. Roughening the surface of one of the interfaces increased its fracture resistance sufficiently so that crack growth on this interface was inhibited. Thus, crack growth would occur only on the “smooth” interface (one with the least fracture resistance) or in the case where both interfaces were smooth, dual cracking occurred. Finite element analysis was used to explain the observed crack growth results.

Evaluation of the effect of dental cements on fracture resistance and fracture mode of teeth restored with various dental posts: A finite element analysis

2016 ◽  
Vol 36 (9) ◽  
pp. 2213-2221 ◽  
Author(s):  
Mohamed Abdulmunem ◽  
Ali Dabbagh ◽  
Sadjad Naderi ◽  
Mahtab Talaei Zadeh ◽  
Nur Farha Abdul Halim ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Fracture Mode ◽  
Fracture Resistance ◽  
Element Analysis
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