04 Provisional Restorations Flashcards
Requirements of Provisional
- ______ protection and ______ margins
- ______ stability
- ______ function
- easily ______
- non-______ margins
- Strength and _____
- Esthetics
- Pulpal, sealed
- Positional
- Occlusal
- cleaned
- impinging
- retention
What is integrity made from
Bisacrylate
What is alike made from
Acrylic (methyl methacrylate or MMA)
What three metals are pre-fab provisional crowns made from
SS
Aluminum
Anodized gold
also Polycarbonate
What steps are required before the provisional
Pre-op impressions
Clear stint
Shade selection
Anesthetic and prep
Three types of Preliminary matrices
- Triple Tray VPS
- Quadrant Tray VPS
- Thermo plastic vacuum stint
When would you use triple tray
when the patient has good/stable occlusion
What would you use with a patient who has a strong gag reflex
Quad tray
What would you use for a bridge as opposed to a single crown?
Stint
Pros for Bis-Acrylic (Integrity)
- Improved _____ properties
- _____ setting temperature
- reduced ______ shrinkage
- Good _____ stability
- High _________
- _______ cartridge
- Low odor and _____
- Option for ____ cure, _____ cure, or _____ cure
- mechanical
- Lower
- polymerization
- color
- polishability
- automix
- taste
- self, dual, light
Cons for integrity
Not very durable
Fractures easily
Marginal discrepancies
What should you always do before using the integrity?
Remove old tip and bleed the cartridge
Check the expiration date
Integrity technique
- Remove excess VPS material in ______ contact areas
- ______ the tooth
- Express a ____ sized drop onto tray paper and fill the unit in the impression
- Place impression into mouth
- interproximal
- Lubricate
- pea
If the gingival margin is at the gingival tissues…
fill the matrix slightly less that two thirds, and if Sub-G, to the gingival margin of the matrix
