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Journal of Dental Research, Vol 59, 70-75, Copyright © 1980 by International & American Associations for Dental Research Online Journals

ARTICLES

Translucency of dental porcelains

R. H. Brodbelt, W. J. O'Brien and P. L. Fan

The translucency of comparable shades of five dental porcelains was determined. Both direct transmittance and total transmittance were measured at wavelengths of 400-700 nm. For 1 mm of porcelain, the values for direct transmittance were low and averaged 0.13 percent, whereas the values for total transmittance averaged 26.8 percent. Transmittance increased with increasing incident wavelength. These results indicated a high degree of light scattering.




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