Provisional Restorations Flashcards
The following are advantages of ___ provisionals
- Low shrinkage
- Rubber stage to set
- Longer working time
- Lower polymerization time
PEM (Polyethyl Methacrylates)
The following are indications of when to use ___ Provisionals?
- Indirect
- Long term
- Conventional
- Long span
PMM (Polymathy Methacrylates)
Which provisional is the most biologically stable when used?
Epimine
Which type of provisional is used for long span and long term?
Hybrids
The following are disadvantages for ___ provisional crowns?
- Poor hardness
- Poor abrasion resistance
- Poor color stability
- Poor fishability
- Eugenol deteriorates resin
PEM (Polyethyl Methacrylates)
The following are the disadvantages of ___ Provisionals?
- High heat polymerization
- High shrinkage
- Monomer irritant to pulp
- Eugenol deteriorates resin
PMM (Polymathy Methacrylates)
The following are disadvantages for ____ provisionals
- High cost / uniit - Air bubbles - Poorest in color stability, hardness, abrasion resistance - Cannot be corrected by additions
Epimine
The following indications are for ____ provisional crowns
- Short-term provisionals
- Direct technique
- Short span
PEM (Polyethyl Methacrylates)
What are major advantages to using hybrid provisionals? (3)
- Low shrinkage
- Additions can easily be made
- Can be radiopaque
The following indications are for ____ provisional crowns
- Short-term provisionals - Direct technique - Short span
Epimine
What are the disadvantages of hybrid provisionals?
- Brittle
- Repairs and mixing are difficult
- Expensive
There are 3 techniques mentioned for provisional restorations, what are they?
- Direct method
- Indirect method
- Indirect/Direct reline
All of the following are describing which type of provisional material?
- Best abrasion resistance
- Best color stability
- Good polish-ability
- Good marginal finish
PMM (Polymathy Methacrylates)
