Glass ionomer cements are composed of______________?
Correct answer: B. Aluminosillicate powder and polyacrylate
- A. Alumino silicate powder and phosphoric acid
- B. Aluminosillicate powder and polyacrylate
- C. Zinc oxide powder and phosphoric acid
- D. Zinc oxide powder and polyacrylate liquid
Explanation
Glass ionomer cement forms by reacting an aluminosilicate glass powder with an aqueous polyacrylic acid solution. Zinc oxide with phosphoric acid describes zinc phosphate cement, not glass ionomer cement.
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