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
16
Q
Polycarbonate crown
A
- check temporary lecture
17
Q
5 shape of pontic
A
- modified ridge lap has issues
- ## wash through for mandibular molars
18
Q
Disadvantage of spring cantilever
A
- palatal irritation
- only replace anterior
- displacement of
- springness of metal arm
19
Q
metal ceramic crown
A
- GI
- RMGI Relyx
20
Q
all ceramic crown
A
- dual cure cement Nexus
21
Q
Cast post and core
A
RMGI
GI
22
Q
Fibre post
A
dual cure
23
Q
constituents of dental ceramic
A
- kaolin
- feldspar
- quartz/ silica
- metal oxides
- glass
24
Q
how to fabricate ceramic
A
- normally is powder
25
Q
Ideal post
A
- non- threaded: prevent fracture
- cement retained: act as buffer
- parallel: avoid wedging
26
Q
Material for core buildup
A
- comp
- amalgam
- RMGI
27
Q
6 methods of removing post
A
- moskito forcep
- ultrasonic
- massran kit
- eggler remover device
- anthrogyr sliding hammer
