Role of tartaric acid in glass ionomer cement
After the discovery of glass ionomer in early 1970's by Wilson and Kent there was a flaw in the cement they were :
1. The Glass ionomer cement took long time to set.
2. The translucency of the glass ionomer cement was also less.
So in the year 1976 it was Wilson and his co workers reported that addition of tartaric acid to the glass ionomer cement. After adding they found out that
1. Fluoride content of the glass ionomer reduced
2. It had more setting time
3. Viscosity of the cement was also reduced.
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