Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Dent > Crown materials > Flashcards

Crown materials Flashcards

1
Q

High noble alloy %?

A

60% or more, with at least 40% gold

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Noble alloy %?

A

≥ 25% noble metal content

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Base metal alloys %?

A

< 25% noble metal content

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Etchable ceramics?

A
  1. Conventional veneering ceramics / feldspathic porcelains
  2. Particle reinforced glasses (lithium disilicate, leucite reinforced)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Non-etchable ceramics?

A

Polycrystalline (zirconia)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Leucite-reinforced glasses considerations

A

Maximizes aesthetics
Weakest of the three materials
Etchable material for predictable bonding
Must be bonded to tooth structure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Lithium disilicate

A

Excellent aesthetics
Weaker than polycrystalline ceramics
Etchable material for predictable bonding
Must be bonded to tooth structure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Polycrystalline ceramics

A

Good aesthetics
Strongest of the three materials
Can’t be etched, bonding questionable long-term
Should be bonded to tooth structure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

How long to etch lithium disilicate for?

A

20 second etch with hydrofluoric acid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How long to etch empress/leucite reinforced?

A

One minute etch with hydrofluoric acid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Determining prognosis of tooth?

A

Minimum 1 to 1 post to crown ratio
At least 5mm of apical seal
Ferrule?

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Type of temporary materials?

A

Acrylic resin, methylmethacrylate- unifast
Composite resin - bisGMA - structur

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Die spacing?

A

40 microns

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How many microns is shimstock?

A

8 microns

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Fuji plus?

A

Resin modified GIC

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Resin-based cements?

A

RelyX, panavia

17
Q

What does a cement do?

A

Acts as a seal, to fil the void

18
Q

How to bond lithium disilicate?

A

K-etchant on tooth, tooth primer.
Hydrofluoric etch ceramic, ultrasonic, ivoclean, ceramic primer
Then use Panavia

19
Q

How to bond zirconia?

A

K-etchant on tooth, tooth primer.
Ivoclean, ceramic primer.
Then use Panavia

20
Q

How to bond porcelain veneers?

A

Etch & silane (Monobond Plus)
light cured resin adhesive, variolink

Dent (13 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions