Which of the following show chemical bond with enamel (Calcified tissues)______________?
Correct answer: C. Polycarboxylate cements
- A. Composites
- B. Direct filling resins
- C. Polycarboxylate cements
- D. BIS-GMA resins in pit and fissure sealants
Explanation
Polycarboxylate cement chemically bonds to calcified tooth tissues by carboxyl groups chelating calcium. Composites and BIS-GMA sealants mainly depend on micromechanical retention after acid etching.
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