Question 458 · LDEK · Adhesive systems
Indicate false information regarding adhesion to enamel and dentin:
- A. dentin etching removes the smear layer, decalcifies the superficial dentin and dentinal tubules.
- B. hybrid layer is created by combining the resin with collagen through monomer cross-links.
- C. treating the tooth surface with a conditioner improves the bonding efficiency of the glass ionomer to hard tooth tissues.
- D. the ability of the adhesive to wet the surface depends on the contact angle of the fluid with the solid surface.
- E. good wetting occurs when the angle of the fluid with the solid surface is above 90°.
Hint
Recall how the contact angle relates to wetting: a liquid that spreads well forms a low angle with the surface.
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