Operative A2: Cavity Sealers, Liners, Bases

Front 1

CAVITY SEALERS:

1) What do they do?
2) What do they NOT do?
3) What does fluoride in cavity sealers do?
4) What are dental adhesives?
5) What are the two categories of cavity sealers?
6) What are they made out of?
7) How long are cavity sealers effective?
8) What kinds of restorations do you use them with?
9) What are the steps in placing cavity varnish?

Back 1

1) Seal dentinal tubules, protective coating for prepared dentin.
2) NO thermal protection for dentin.
3) Helps with sensitivity/marginal leakage of amalgam.
4) Sub-group of cavity sealers, provide pulpal protection by sealing out bacteria from the tooth-restoration interface.
5) Cavity varnish, like Copalite, and adhesive selaers, like Gluma

Front 2

What are cavity liners and where are they placed? What is an example and what is the max thickness of increments used for cavity liners? What happens if you bulk mix them?

Back 2

Cement/resin placed over dentin, under restorative material. Ex: vitrebond, use in incremental thickness of 0.5 mm or less. It's fragile, so bulk mix = fracturing.

Front 3

What are cavity bases used for and what kind of incremental thickness are they used in?

Back 3

Used to replace missing dentin and support final restorations, use in bulk thickness.

Front 4

Cavity varnish:

1) What is it?
2) What are they made out of?
3) How long are cavity sealers effective?
4) What kinds of restorations do you use them with?
5) What kind of benefits does it provide and what doesn't it provide?
6) What are the steps in placing cavity varnish?

Back 4

1) Subcategory of a cavity sealer
2) Anhydrous ethyl ether and chloroform
3) Up to 6 months - has short term benefits but questionable long term benefits
4) Amalgams and gold
5) Fluoride fights sensitivity/marginal leakage. Does NOT provide thermal protection.
6) Apply two thin layers with a cotton pellet, air dry between layers, then place amalgam.

Front 5

Adhesive sealers:

1) What are they?
2) Some examples of adhesive sealer products?
3) When do you use them?
4) Benefits of adhesive sealers?
5) What parts of the tooth do adhesive sealers bond to?
6) Steps on how to apply?

Back 5

1) Subcategory of cavity sealers
2) Self-curing/dual cure - **GLUMA**, Amalgambond, All-Bond3, Prime&Bond DB/AB
3) Use instead of varnishes under amalgams/full crowns
4) *Bonded amalgam restoration, thermal restoration, seals against microleakage, dentin desensitization*
5) Enamel and dentin
6) Pumice, rinse, dry, etch tooth, rinse, slightly dry. Brush on activator/conditioner, leave 10-30 sec, rinse and dry. Apply adhesive, air thin, leave 30 sec. Mix base/catalyst, brush on, condense amalgam immediately.

Front 6

What is GLUMA and how is it beneficial?

Back 6

Adhesive sealer, beneficial b/c it's a rewetting agent for dentin, decreases incidence of post-op discomfort by 90%. Especially good because it's a *flocculating agent* - flocs (calcification) from plasma proteins plug up dentinal tubules, don't allow water to come up through dentinal tubules, reducing post-op sensitivity. Good for class I, II, III.

Front 7

Which amalgam is best to use if you want to create an amalgam bond between the amalgam and tooth?

Back 7

Single spherical alloy (instead of admix)