1
Q
What are the different types of temporary material?
A
- PMMA
- PEMA
- bis-acryl composite
2
Q
What is an example of PMMA?
A
Jet
3
Q
What is an example of PEMA?
A
Trim II
4
Q
What is an example of bis-acryl composite?
A
Protemp4
5
Q
What are the properties of PMMA as a temporary material? (9)
A
- powder/liquid formulation
- self-curing
- good marginal fit
- good transverse strength
- polishable
- poor abrasion resistance
- high shrinkage
- high thermal release
- free monomer is toxic
