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.

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2
Q

What are the four traditional steps for dentin bonding?

A
  1. Etch: phosphoric acid used to take away smear layer
  2. Prime: hydrophilic monomer to help stabilize collagen fibers
  3. Adhesive: apply adhesive
  4. Restoration: apply composite
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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

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