Results 181 to 190 of about 27,951 (232)

Masking Power of Dental Opaque Porcelains

Journal of Dental Research, 1984
A technique was developed to qualify the masking power of undiluted opaque dental porcelain by dilution of opaque powder with a clear glaze powder and by extrapolation of quantitative data gathered by reflectance spectrophotometry. Quantification of reflectance data was made on dilute opaque porcelains using the scattering and absorption coefficients ...
Woolsey, G. D., Johnson, W. M., O'Brien, W. J.   +2 more
openaire   +3 more sources

Visco-elastic deformation of dental porcelain and porcelain-metal compatibility

Dental Materials, 1991
A computer simulation using a visco-elastic stress analysis was conducted to clarify the effect of the heating rate on deformation temperature of dental porcelain during firing. In this simulation, the following temperature-dependent factors were incorporated: elastic modulus, viscosity, and coefficient of thermal expansion.
K, Asaoka, J A, Tesk
openaire   +2 more sources

Dental Porcelain

Dental Clinics of North America, 1971
G, Mumford, A, Ridge
openaire   +2 more sources

Dental Porcelain

Transactions of the Indian Ceramic Society, 1952
G. N. Mohanty, D. K. Patwardhan, H. N. Roy   +2 more
openaire   +1 more source

Densification of Dental Porcelain

Journal of Dental Research, 1957
R F, VINES, J O, SEMMELMAN
openaire   +2 more sources

[Strengthening for dental porcelain surface].

Aichi Gakuin Daigaku Shigakkai shi, 1990
Although the metal crown is aesthetically improved when porcelain is fused to it, a large number of different factors often cause the porcelain to break. Here we report a method to prevent this from happening. As a hardening treatment for the porcelain surface, the Na-ions in the porcelain, which have a short radius, were replaced by K-ions having a ...
A, Araki, S, Takehana, N, Tsukamoto, K, Hashimoto, K, Matsuyama, K, Sakuma, K, Sakai   +6 more
openaire   +1 more source

[Tensile strength of dental porcelains].

ZWR, 1992
Flexural, compressive and tensile strength as well as the modulus of elasticity of 15 different dental ceramics were evaluated. Conventional dental ceramics differed insignificantly in their mechanical properties. By testing new products like Cerec 2 and especially In-Ceram there was found an evident increase in inner strength.
P, Pfeiffer, H, Schwickerath, M C, Sommer   +2 more
openaire   +1 more source

RADIOACTIVITY IN DENTAL PORCELAIN

Australian Dental Journal, 1980
openaire   +2 more sources

Dental Porcelains

The Journal of the American Dental Association (1922), 1932
openaire   +1 more source

[Dental porcelain].

Parodontologia e stomatologia (nuova) : organo ufficiale dell'ARPA italiana, della Societa italiana Jonoforesi stomatologica e della Accademia ligustica di stomatologia, 1986
P, Parodi, P L, Gatti, R, Zizzo, M, Avanzi, C, Zampardi   +4 more
openaire   +1 more source