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- Title
The Structure of a Glass-Ionomer Cement and its Relationship to the Setting Process.
- Authors
BARRY, THOMAS I.; CLINTON, DESMOND J.; WILSON, ALAN D.
- Abstract
The G-200 glass of the glass-ionomer cement has two phases: a continuous calcium aluminosilicate matrix and partly crystalline calcium fluoride-rich droplets, the nature of which depend on the thermal history of the glass. The setting process of the cement takes place when the glass is mixed with poly(acrylic acid). It has two overlapping stages corresponding to the rapid leaching of calcium ions from the uncrystalline part of the droplets, followed by the slower release of aluminum (and some calcium) from the main glass phase. These processes are affected by the microstructure and microcomposition of the glass.
- Subjects
DENTAL glass ionomer cements; CALCIUM fluoride crystals; CARBOXYLIC acids; SPECTRUM analysis; DENTAL materials
- Publication
Journal of Dental Research, 1979, Vol 58, Issue 3, p1072
- ISSN
0022-0345
- Publication type
Article
- DOI
10.1177/00220345790580030801