Question 491 · LDEK · Adhesive systems
Indicate correct statements regarding adhesion of composites:
1) enamel etching with 37% phosphoric acid allows to achieve chemical microretention of resin to enamel;
2) crosslinking of monomers with collagen occurs in the hybrid layer of dentin;
3) dentin etching removes the smear layer, decalcifies the superficial layer of dentin and dentin tubules;
4) OptiBond Solo Plus belongs to the 7th generation of self-etching systems;
5) smear layer is formed after mechanical cutting of dentin at depths of 0.5 to 5 ?m.
2) crosslinking of monomers with collagen occurs in the hybrid layer of dentin;
3) dentin etching removes the smear layer, decalcifies the superficial layer of dentin and dentin tubules;
4) OptiBond Solo Plus belongs to the 7th generation of self-etching systems;
5) smear layer is formed after mechanical cutting of dentin at depths of 0.5 to 5 ?m.
- A. 1,2,3.
- B. 2,4,5.
- C. 1,2,5.
- D. 1,3,5.
- E. 2,3,5.
Hint
Distinguish micromechanical from chemical bonding on enamel, and recall which generation a separate etch plus one-bottle adhesive belongs to.
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