L2: Epoxy Flashcards Preview

Dental Materials Exam II > L2: Epoxy > Flashcards

Flashcards in L2: Epoxy Deck (3)
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1

What is epoxy used for?

Epoxy is a two-component system used in the production of resins & dies (hardeners).
-Resin - monomer
-Hardener - polyamine
-Linking process called polymerization

2

What is the biggest difference b/t epoxy and gypsum?

Epoxy SHRINKS while gypsum expands.

3

What is one advantage & one disadvantage of epoxy vs gypsum?

Advantage: Epoxy has superior compressive strength & abrasion resistance
Disadvantage: Sets slowly; up to 16 hours