Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

indirect Restoration > * Focused Lec Quiz 3/30 Cad/Cam II/ Ceramic material II > Flashcards

* Focused Lec Quiz 3/30 Cad/Cam II/ Ceramic material II Flashcards

1
Q

CAD/CAM sf:

A

Computer aided design, Computer aided manufacturing

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

Steps to CAD/CAM:

A

Acquisition, design, fabrictation

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

3 types of restoration fabrication:

A

chairside, lab, centralized

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

What type of lab is fixed lab

A

production: centralized- can make rest from tin (?)

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

Workflow 1:

A

Scan, Design, Chairside of Labside

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

Workflow 2:

A

Scan, Physical model, conventional restoration Fabricate Labside CAM

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

Workflow 3:

A

Conventional Impression and Working Cast, Scan and Design, Fabricate Labside CAM

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

Indications for CAD/CAM:

A

in/ onlay, FCC both pos and ant, veneer, partial FDP, framwork, Bar system from implant prosth, abutment for implant, implant supported crown, implant supported partial FDP, implant supported full arch prosth

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

custom abutment are specific to:

A

the contours of the tooth to be fabricated

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

Can you make an implant supported full arch zirconia FDP?

A

yes

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

Best choice material for edentulous area requiring a flange?

A

zirconia, biocompatible, cleansible

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

% shrinkage of zirconia:

A

20-22%

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

Factors to consider when making bar for 6 implant supported full arch denture:

A

thickness/ width of bar, leave space for denture material (acrylic, right?

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

Leucite Based Ceramic, machinable?

A

yes

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

What type of ceramic is leucite based?

A

glass

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

Is Leucite Based Ceramic a 1 or 2 phase material? Name.

A

2: lucite and glass

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Ceramic machinable materials;

A

Leucite Based Ceramics, Vita Mark II, EmpressCAD, composite type, Sirona blocks, LiDi (IPS e.max CAD), In-Ceram Alumina (Al203), In-Ceram Zirconia (Al203-Zro2), polycrystalline ceramics, procera alumina, Yttrium-stabilized Zirconium Oxide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Is Paradigm C machinable?

A

no

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Ceramic machinable material most often used at school:

A

EmpressCAD (Ivoclar)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

LiDi, 1 or 2 phase?

A

2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Anterior LiDi veneer, resin cement, light adhesive bonded, light cure or dual cure?

A

depends on thickness

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

How to cure Feldspathic porcelain veneer:

A

very thin, light cure adhesive cement, dual cure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Material w 3 phases:

A

Zirconia, Zirconia oxide (ZrO2)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Name the 3 phases of Zirconia or Zirconia oxide (ZrO2)

A

monolithic, tetragonal, cubic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Which phase are we interested in in dentistry for Zirconia or Zirconia oxide (ZrO2)?
Tetragonal
26
Organize the phases of Zirconia or Zirconia oxide (ZrO2), smallest to largest:
cubic, tetragonal, monolithic
27
Phase of Zirconia or Zirconia oxide (ZrO2) at room temp:
monolithic
28
Phase of Zirconia or Zirconia oxide (ZrO2) at highest temp:
cubic, smallest
29
How to prevent the polymorphic transformation rom tetragonal phase to monolithic phase for Zirconia or Zirconia oxide (ZrO2)
Add Yttrium oxide (Y203)
30
Yttrium oxide (Y203) is known as:
Y-TZP (Yttrium Stabilized Tetragonal Zirconia Polycrystals)
31
Cause of transition from Tetragonal phase to monolithic for Zirconium or Zirc oxide:
cooling, polymorphism
32
% volume change for Zirconium or Zirc oxide:
3-5%
33
Area of crack propagation is aka:
Process zone
34
Tetragonal particles transforming to monolithic can lead to:
crack progagation
35
2 types of sintering ovens:
zirconia, ivoclar (dry vs wet, right?)
36
Sintering oven that takes he longest:
Zirconia, must cool slowly to not crack
37
TF? LiDI oven can be used for Leucite based as well
T.
38
TF? Leucite machinable, leucite based restoration can be used without sintering.
T. They can be machined and stained, they don't have to be crystalized
39
Framework design of Ceramic Machinable materials can be:
monolithic or layered
40
Monolithic doesn't have this layer:
porcelain layer
41
Leucite based can it be monolithic or layered?
either
42
Zirconia, mono or layered?
either
43
LiDi, mono or layered?
either
44
In-Ceramic, mono or layered?
only layered
45
Layered cores can be made of:
zirconia, alumina, in-ceram alumina, then layer of feldspathic porcelain that is specific for substructure
46
Difference in the way monolithic and layered are fabricated?
monolithic is 1 block, 1 material
47
What is needed bw layering feldspathic and zirconia substructure and why?
supported ceramic design, similar to MCC restoration, metal framework that can support layered ceramic, bc they don't bond well
48
How to overcome weakness of zirconia base:
by having appropriately supported ceramic
49
Layered on labial only, anterior or posterior?
anterior
50
Posterior, monolithic or layered?
monolithic
51
TF? Both Feldspathic and pressed leucite based are machinable.
F. neither
52
TF? No leucite based materials are machinable,.
F, pressed is not
53
List 3 machinable, commonly used materials:
LiDi, Aluminum, Zirconium
54
As amt of crystalline inc, flexural strength inc/dec:
inc
55
As amt of crystalline inc, translucency inc/dec:
dec
56
Other machinable material blocks:
wax, PMMA, Titanium, Chrome Cobalt, Composite Resin
57
What don't you need to do for wax block machining?
wax pattern project, mill then cast, noble alloys
58
When to use PMMA block machining:
interim
59
Chrome Cobalt Blocks, precious or non?
non
60
Very important aspect for crown preps via CAD/CAM
smooth, well define margins
61
When to use finish line bevel for ceramic materials:
never
62
Finish line width for ceramic:
depends on material
63
Shoulder design for ceramic crown preps:
mod shoulder or chamfer
64
Angle bw axial wall and finish line fro ceramic cowns
90-130'- not bigger than 130' or it can cause fracture, especially weaker materials, zirconia is slightly different
65
Tooth reduction depends on
material, region, layered monolithic,
66
General reductions for ceramic crowns:
1-2mm occ, Finish line width: 3.-1mm
67
TF? 0.3mm finish line width for both LidI and Zir,
not true for LiDi, T for ziriconia
68
roundness of cusp:
1.6mm diameter bur in machine, sme for cusp
69
Where is the holy zone?
marginal ridge adaptation area
70
Angel bw cusps for ceramic crowns:
> or = to 120-140', for well seated crown
71
Cusp tip radius:
greater than or equal to 0.5mm radius
72
Radias of burs in machine for cusp tips:
1mm
73
Incisal edge width for ceramic crowns:
at least 1mm

indirect Restoration (54 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions