Diametral and compressive strength of dental core materials

Statement of problem. Strength greatly influences the selection of core materials. Many disparate material types are now recommended for use as cores. Cores must withstand forces due to mastication and parafunction for many years. Purpose. This study compared the compressive and diametral tensile st...

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Bibliographic Details
Published in:The Journal of prosthetic dentistry 1999-09, Vol.82 (3), p.272-276
Main Authors: Cho, George C., Kaneko, Leslie M., Donovan, Terence E., White, Shane N.
Format: Article
Language:English
Subjects:
Analysis of Variance
Cermet Cements
Composite Resins - chemistry
Compressive Strength
Dental Alloys
Dental Amalgam - chemistry
Dental Stress Analysis
Dentistry
Glass Ionomer Cements - chemistry
Maleates
Materials Testing
Polyurethanes
Post and Core Technique
Statistics, Nonparametric
Tensile Strength
Titanium
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Summary:Statement of problem. Strength greatly influences the selection of core materials. Many disparate material types are now recommended for use as cores. Cores must withstand forces due to mastication and parafunction for many years. Purpose. This study compared the compressive and diametral tensile strengths of 8 core materials of various material classes and formulations (light-cured hybrid composite, autocured titanium containing composite, amalgam, glass ionomer, glass ionomer cermet, resin-modified glass ionomer, and polyurethane). Material and methods. Materials were manipulated according to manufacturers’ instructions for use as cores. Mean compressive and diametral strengths with associated standard errors were calculated for each material (n = 10). Analyses of variance were computed ( P
ISSN:0022-3913
1097-6841
DOI:10.1016/S0022-3913(99)70079-X