Partial Veneer Crown Flashcards
1
Q
What are the different arrangments of partial veneer crowns (anterior/posterior)?
A
- Anterior
- 3/4 crown
- 7/8 crown
- Posterior
- 3/4 crown
- Pinledge crown
2
Q
What are the indications for a PVC posterior?
A
- Lost moderate amounts of tooth structure
- If buccal wall is intact and well supported
- Retainers for an FPD
- Where restoration of the occlusal surface is needed
3
Q
What are the indications for a PCS anterior?
A
- Retainers to reestablish anterior guidance
- Splint teeth
- Rarely suited for restoring damaged teeth
4
Q
What are the contraindications for PVC’s?
A
- Short clinical crowns
- Long span FPD’s
- Rarely for endodontically treated teeth
- Active caries
- Untreated perio disease
5
Q
What are some of the advantages of PVC’s?
A
- Conservation of tooth structure
- Reduced pulpal insult
- Reduced periodontal insult
- Access for oral hygiene
- Less gingival involvement
- Permits electrical vitality testing
6
Q
What are the disadvantages of PVC’s?
A
- Less retention
- Less resistance
- Difficult to prep
Some metal is displayed (cosmetics compromised)
7
Q
How is a 7/8 crown prepared?
A
A 3/4 crown plus the distal 1/2 of the buccal cusp
8
Q
What are the indications for a pinledge crown?
A
- RPD abutment
- Anterior guidance
