4/4 Flashcards
1
Q
What is cuspal coverage?
A
- to prevent fracture of tooth
- onlay and crown
2
Q
Onlay vs Crown
A
- less destructive of tooth tissue
3
Q
DAHL technique
A
- put composite on anterior palatally
- for 6 months
- allow posterior teeth to erupt
- allow interincisal space for toothwear buildup
4
Q
Cement for zirconia crown
A
- dual cure resin luting cement
- Nexus Universal
- Aquacem
5
Q
Cement
A
- GI luting cement
- RMGI
- anaerobic dual cure cement
6
Q
Indication of Inlays
A
- use for MO or DO cavity
- if direct restoration keeps failing
- good OH
7
Q
Prep measurements for ceramic inlay
A
- isthmus 1.5mm
- depth 1.5mm
- tapered axial wall 4-6 degree
- flat pulpal floor
- butt joint
8
Q
Gold inlay
A
- 0.5mm
- bevel is needed
9
Q
Indications for onlay
A
- direct restoration failed
- cuspal coverage
- coronal seal for root treated teeth
10
Q
Prep for ceramic onlay
A
- cuspal reduction (working/ non-working cusp)
- working cusp 2mm reduction
- non working 1.5mm
11
Q
Gold onlay
A
- non- working cusp 0.5mm
- working cusp 1mm
12
Q
Principles of crown prep
A
- preservation of periodontium
- structural durability
- retention resistance
- marginal integrity (shoulder and chamfer- pt can clean around margin)
- aesthetic consideration
- preservation of tooth tissue
13
Q
Biological width of crown
A
2mm
14
Q
Indication of bridge
A
- aesthetics
- stabilise occlusion
- improve masticatory function
- function
- speech
15
Q
Pt indications
A
- good OH
- no parafunctional habits
- stable perio
- if pt has epilepsy, fixed fixed bridge
- cooperative pt
