Which of the following is common to both zinc eugenol cement and polycarboxylate cement?
Correct answer: C. Chelation
- A. Polyacrylic acid is liquid
- B. Chemical bond to tooth structure
- C. Chelation
- D. Substitution o eugenol by EBA to increase strength of cement
Explanation
Both materials involve chelation: zinc eugenol cement forms zinc eugenolate, while polycarboxylate cement can chelate calcium in tooth structure through its carboxyl groups. Polycarboxylic acid bonding to tooth is not shared equally with zinc eugenol cement.
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