The tow cements which hold with the tooth are_______________?
Correct answer: B. GIC and polycarboxylate
- A. GIC and ZnPO4
- B. GIC and polycarboxylate
- C. ZnPO4 and silicate
- D. GIC and silicate
Explanation
Glass ionomer and zinc polycarboxylate cements chemically adhere to tooth structure through interaction between their carboxyl groups and calcium in enamel and dentine. Zinc phosphate cement mainly relies on mechanical retention.
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