OPALESCENCE IN DENTAL PRODUCTS

Authors
HOLAND W FRANK M RHEINBERGER V
Citation
W. Holand et al., OPALESCENCE IN DENTAL PRODUCTS, Thermochimica acta, 280, 1996, pp. 491-499
Citations number
15
Categorie Soggetti
Chemistry Analytical
Journal title
Thermochimica acta → ACNP
ISSN journal
00406031
Volume
280
Year of publication
1996
Pages
491 - 499
Database
ISI
SICI code
0040-6031(1996)280:<491:OIDP>2.0.ZU;2-N
Abstract
The aim of the investigation was to develop an opal dental glass, to c haracterize its microstructure and to determine the thermal properties . It was possible to develop opal glasses derived from the system SiO2 -Al2O3-K2O. The opalescent effect is comparable to that of natural tee th. During this study it was found that two mechanisms must be control led: the phase separation in the glass and the minimum surface crystal lization at glass grain boundaries within the monolithic sample.