01. Bonding

Question 1

Benefits of Self-Etching Primers (6th / 7th gen)

Answer 1

1. Less technique sensitive
2. Eliminates hybridoid layer
3. Reduced post-op sensitivity

Question 2

MMP’s degrade what? How does this affect hybrid layers of resin-dentin bonds?

Answer 2

Degrade extracellular matrix components. This may degrade hybrid layers from resin-dentin bonds.

Question 3

List clinical alternatives to improve resin-dentin bonding

Answer 3

1. Vigorous rubbing
2. Multiple coats
3. Delayed light curing
4. Additional layers of hydrophobic resin coating
5. Prolonged light cure exposure time
6. Warm air-stream
7. Ethanol bonding
8. MMP inhibitors