Adhesives Flashcards
1
Q
Why is dentin harder to bind to?
A
Smear layer created during prep which interferes with bonding.
Etching is done to remove the smear layer.
2
Q
What are the four traditional steps for dentin bonding?
A
- Etch: phosphoric acid used to take away smear layer
- Prime: hydrophilic monomer to help stabilize collagen fibers
- Adhesive: apply adhesive
- Restoration: apply composite
3
Q
Modern steps for dentin bonding?
A
Most combine etchant and primer. (Two step)
Some combine etchant, primer, and adhesive. (One Step)
All based on methacrylate monomers