Restorative - Outcome 7

Question 1

Cavity Varnish is…

Answer 1

Is a thin liquid consisting of copal resin.

Question 2

Cavity Varnish may be dissolved in..

Answer 2

in an organic solvent, such as chloroform or ether.

Question 3

Cavity Varnish is placed..

Answer 3

over the entire internal surface of the cavity prepartion before the restorative material is placed.

Question 4

Cavity varnish can seal…

Answer 4

dentinal tubules, reduce microleakage around a restoration, and act as a barrier to protect the tooth from highly acidic types of cement such as zinc phosphate.

Question 5

Indications for Cavity Varnish

Answer 5

When placing a non-bonded amalgam restoration, cavity varnish may be placed into the cavity preparation. The solvent evaporates, leaving the resin as a thin film to seal the dentinal tubules, reducing leaking around the restoration and acting as a barrier to protect the tooth from irritants in types of cement.

Question 6

Contraindications for Cavity Varnish

Answer 6

Cavity varnish interferes ith the bonding and setting of composite and glass ionomer cement resotrations and therefore cannot be used under these restorations.