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- Title
A study of glass-ionorner cement and its interface with enamel and dentin using a low-temperature, high-resolution scanning electron microscopic technique.
- Authors
Ngo, H.; Mount, G. J.; Peters, M. C. R. B.
- Abstract
This report describes a method of immobilizing the water contained in glass-ionomer cement and dental hard tissues and stabilizing the delicate organic component of dentin. With this method, the intact interface between glass-ionomer and dental hard tissues can be observed under scanning electron microscope with few of the artifacts that are caused by the desiccation associated with conventional scanning electron microscopic studies. There was a distinct zone of interaction between the glass-ionomer cement and enamel and dentin. Under severe thermal stress, glass-ionomer cement failed cohesively, leaving an intact interface with enamel and dentin. Machine-mixed glass-ionomer cements displayed a high level of porosity. Some glass particles were separated from the matrix, and there was evidence that some are dislodged from the matrix during specimen preparation.
- Subjects
DENTAL glass ionomer cements; DENTAL cements; SCANNING electron microscopy; DENTIN; DENTAL materials; DENTAL pulp; DENTISTRY; DENTAL enamel; THERMAL stresses
- Publication
Quintessence International, 1997, Vol 28, Issue 1, p63
- ISSN
0033-6572
- Publication type
Article