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Effect of Surface Roughness on Flexural Strength of Veneer Ceramics
H. Fischer1,2,*,
M. Schäfer1 and
R. Marx1
1 Department of Dental Prosthetics, Section of Dental Materials, University RWTH Aachen, Germany; and
2 Department of Ceramics and Refractory Materials, University RWTH Aachen, Mauerstrasse 5, D-52064 Aachen, Germany;

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Figure. Correlation between the surface roughness and the mean failure stress of the 4 investigated ceramic veneering materials of the ceramic systems Empress 1 (a), Empress 2 (b), Symbio Ceram (c), and Vita Akzent (d). The data points indicate the mean values of each surface quality, respectively (n = 20 for each data point). The bars indicate the standard deviations of the failure stress and the surface roughness values, respectively.
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Journal of Dental Research, Vol. 82, No. 12,
972-975 (2003)
DOI: 10.1177/154405910308201207

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