Question 112 · LDEK · Fissure sealing
Indicate characteristic features of polymer fissure sealants:
1) relatively high mechanical strength;
2) high surface tension;
3) acid etching of enamel is a requirement;
4) presence of acidic monomers;
5) low moisture sensitivity;
6) moisture protection is a requirement.
The correct answer is:
2) high surface tension;
3) acid etching of enamel is a requirement;
4) presence of acidic monomers;
5) low moisture sensitivity;
6) moisture protection is a requirement.
The correct answer is:
- A. 1,2,3,4.
- B. 1,3,6.
- C. 2,3,5.
- D. 2,3,4,5.
- E. 2,3,4,6.
Hint
Think about how resin sealants bond to enamel and what happens when saliva contaminates the etched surface.
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