Erosion Process of a Glassionomer Cement in Organic Acids
1984 Volume 3 Issue 2 Pages 210-219,332
Details
1984 Volume 3 Issue 2 Pages 210-219,332
Erosion of a glass ionomer cement in acetic (AA), lactic (LA), citric (CA) and hydrochloric acids (HA) was investigated by means of chemical analysis, SEM observation and infrared (IR) spectroscopy.The larger stability constants of the complex between the acid anions and Al or Ca, or the lower the pH of the acid solutions, the more Al, Ca, Na, Si and F were leached. SEM observation revealed that the cement matrix dissolved out in 0.01M CA and HA. White precipitates formed in 0.01M CA and HA after immersion of the cement. They were identified as hydrated silicious gels by IR spectroscopy
