Restorative & Materials · single question
A favorable property of glass ionomer cement is its:
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Correct answer: A. Chemical (adhesive) bond to tooth structure
- A. Correct. Glass ionomer forms a true chemical bond (ionic) to enamel and dentin via carboxylate groups, plus it releases fluoride.
- B. Incorrect. Micromechanical retention describes resin/etch-and-rinse adhesion to etched enamel/dentin, not GI's defining chemical bond.
- C. Incorrect. GI is notable specifically because it does NOT rely solely on mechanical undercuts.
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