Temporary materials Flashcards
1
Q
What are some temporary materials?
A
- Jet = PMMA
- Trim = PEMA
- Protemp4 = Bis-acrylate
- Provipont = UDMA
2
Q
What are some advantages of PMMA?
A
- Powder/liquid formulation
- Self curing
- Good marginal fit
- Good transverse strength
- Polishable
3
Q
What are some negatives of PMMA?
A
- Poor abrasion resistance
- High shrinkage
- High thermal release
- Free monomer may be toxic
4
Q
What does low polymerisation shrinkage give?
A
- Good clinical fit of temporary restoration