Which cement base has the highest modulus of elasticity ?
Correct answer: C. Zinc phosphate
- A. Zinc polycarboxylate
- B. Polymer reinforced ZOE cement
- C. Zinc phosphate
- D. Glass inomer cement
Explanation
Zinc phosphate cement has the highest modulus of elasticity among these commonly used cement bases, making it relatively rigid. Zinc polycarboxylate and polymer-reinforced ZOE are more compliant, while glass ionomer is generally lower.
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