1. Flashcards
1
Q
Between a FPD and RPD: Which requires previous preparation of the tooth?
A
FPD only
2
Q
Between a FPD and RPD: which requires cement?
A
FPD only between prepped tooth and restoration
3
Q
What materials are used for FPDs? (4)
A
Ceramics
Composites
Hybrids
Metals
4
Q
Between a FPD and RPD: More resistant and abrasive?
A
FPD
5
Q
Between a FPD and RPD: More resilience?
A
RPD
6
Q
Between a FPD and RPD: BEtter hygiene?
A
RPD
7
Q
Between a FPD and RPD: More comfortable and psycological acceptance?
A
FPD
8
Q
Between a FPD and RPD: Foreign body sensation?
A
RPD
9
Q
Full fixed prothesis example? (2)
A
- Implant supported (cement/screw)
- Tooth supported
10
Q
Partial fixed prothesis example? (2)
A
- Implant-supported
- Tooth supported
11
Q
Full removeable prothesis example? (3)
A
- Mucosa-supported
- Implant-supported
- Implant-retained
12
Q
Partial removeable prothesis example? (2)
A
- Mucosa-supported
- Tooth-retained
13
Q
How is the retention of a fixed prothesis achieved?
A
By the friction between the two surfaces
14
Q
How is a FPD preventative?
A
Maintain the health and integrity of the dental arches
15
Q
General indications of FPD? (6)
A
Psychological Systemic Diseases Orhodontic Reasons Periodontal Reasons Esthetic Functional
16
Q
Local indications of FPD?
A
Dental Protection Replace Missing Teeth To alter shape, size or inclination of teeth Appearence Trauma
17
Q
General contraindications of FPD? (7)
A
Psycologic (non reversible) Systematic Diseases Deficient Hygiene No Patient Cooperation Macroglosia Age Multiple cavities
18
Q
Local contraindications of FPD? (5)
A
Crown-Root RATIO Prosthetic Space Health of the abutment Gap Length Previous Patology
19
Q
How to treat a patient with epilepsy? (3)
A
- Avoid long appointments and
situations that lead to seizures. - No Removable Prosthesis
- Metallic Occlusal Surface
20
Q
How to treat a patient with cardiovascular disease?
A
Be careful with anaesthetics
21
Q
How to treat a patient with diabetes? (2)
A
- Predisposition for periodontal situations.
- Make sure they are controlled and have eaten.
22
Q
Orthodontic indications for FPD? (2)
A
- To Avoid Orthodontic Treatment
- To Maintain occlusal stability
23
Q
Periodontal indications for FPD? (2)
A
- To Create and/or correct
Axial forces. - To correct occlusal
trauma
24
Q
Esthetic indications for FPD?
A
Bone and gingiva limitations
25
Functional indications of FPD? (3)
- Restoring occlusal stability can solve TMJ disorders
- Restore the masticatory function
- Restore phonetics abilities
26
How can you solve TMJ disorders by restoring occlusal stability (2)
- correcting interferences and prematurity's
| - restoring missing guidance
27
FPD indications for dental protection? (4)
- Replace Missing Teeth
- To alter shape, size or inclination of teeth
- Appearance
- Trauma
28
Abutment prognosis: crown length?
Longer = better prognosis
29
Abutment prognosis: mobility?
Absolute contraindication for abutments
30
Abutment prognosis: things that affect the root? (5)
```
Radiolucent images
Rhizolysis
Hypercementosis
Number, shape
Root-Crown Proportion
```
31
Prognosis: gap shape curvature?
The greater the curvature, the worse the prognosis
32
What can cause no prosthetic space? (3)
- Dental movements (extrusion, inclination)
- Gingival enlargement
- Trauma
33
What are the classifications of tooth supported FPD? (2)
- Unitary
| - Partial
34
What is a partial tooth supported FPD?
Bridge
35
What are unitary tooth supported FPDs? (3)
- Intracoronal
- extracoronal
- Intraradicular
36
What is an intracoronal FPD? (2)
- inlay
| - onlay
37
What is an extracoronal FPD? (3)
- Partial coverage
- Full coverage
- Veneer
38
What is a full coverage FPD? (4)
- All Metal crown
- Metal-Ceramic crown
- Veneer Crown
- All Ceramic Crown
39
What are the classifications of implant supported FPD? (3)
- Unitary
- Bridge
- Full rehabilitation
40
Dental materials porosity?
They should not be porous
41
Dental materials coefficient of thermal expansion?
Should be low
42
Dental materials: Metallic? (2)
Gold
| Metal alloys
43
Dental materials: Non-Metallic? (4)
- Acrylic
- Ceramic
- Composite
- Hybrids
44
Dental materials: Material combos? (2)
- Metal-ceramic
| - Metal-acyrlic
45
Advantages of using gold? (7)
```
Strength
Longevity
Good Biocompability
Hypoallergenic
Minimal Wear to opposing teeth
Fit
Less tooth reduction required
```
46
Disadvantages of using gold? (3)
Esthetics
Expensive Cost
It cannot be fused with ceramics
47
What is a high noble alloy?
More than 40% wt gold + 60wt% other noble metal
48
What is a noble allow?
More than 25wt% noble metals
| - no limit for gold content
49
What is a predominantly base metal alloy?
more than 75wt% base metal + less than 25wt% noble metal
50
Noble alloy advantage compared to gold? (3)
- Increased strength
- Increased hardness
- More resistant to abrasion
51
Noble alloy advantage compared to base metals? (4)
- Less corrosion
- Less abrasion
- Easier to adapt and polish
- More accurate
52
DISADVANTAGES OF HIGHLY NOBLE AND NOBLE ALLOYS COMPARED TO BASE METALS (3)
- More Expensive
- Less Rigid: Disadvantage in long bridges
- More tooth reduction required
53
What metallic material can be used for inlays?
Gold type I II
54
What metallic material can be used for full coverage crowns?
Gold type III
55
What metallic materials can be used for full coverage crowns? (2)
- totally metallic
| - Metal-ceramic
56
What metallic material can be used in bridges? (3)
- Metal-ceramic
- highly or noble alloys
- Cr-Ni if they are long
57
What metallic material can be used in metallic pin cast?
Noble or highly noble alloys
58
What material is mainly used for provisionals?
Resin materials
59
What material allows reline directly in the patients mouth?
Acrylic
60
Acrylic is not... (4)
- very resistant
- abrasive
- stable colorwise
- accurate fitting
61
Acrylics are ... (3)
- manipulated easily
- esthetic (for short period)
- cheap
62
Acrylic biocompatibility?
Low
63
Ceramic advantages? (7)
```
Hardness
Chromatic Stability
Hygiene
Accuracy
No heat changes (protects the pulp)
Biocompability (with soft tissues)
ESTHETICS
```
64
Ceramic disadvantages? (4)
Fragile
More tooth reduction
Not resilient
Enamel abrasion of the antagonist
65
Feldespathic porcelain composition? (3)
Feldespar 85%
Quartz 15%
Kaolin
66
What is the composition of aluminious ceramics? (3)
- In Ceram Alumina 99% aluminum oxide
- In Ceram Spinell 28% magnesium oxide
- In Ceram Zirconia 33% zirconia
67
What is the composition of zirconia based ceramics?
- Zirconia 95%
68
What material is a glass ceramic?
Feldespathic
69
What material is a glass ceramic with fillers? (3)
- Leucite-Reinforced
- Lithium Disilicate
- Glass-inflitrated
70
What material is a glass free ceramic? (2)
Polycrystallines:
| - Aluminious zirconia
71
How are ceramics classified by their microstructure? (4)
- Glass based system, mainly sillica
- Glass based systems with fillers
- cyrstalline-based systems with glass fillers
- polycrystalline solids
72
What are the glass based systems with fillers? (3)
2.1 Low-to-moderate leucite containing feldespathic glass---known as feldespathic porcelain, these are the
more esthetic and the more fragile too
2.2 High-leucite-containing glass. Approximately 50% of leucite and the rest of aluminisilicate glass
2.3 Lithium-disilicate glass ceramic, it is a new type developed by ivoclar (IPS e-max)
73
What are the crystalline-based systems with glass fillers?
Developed as an alternative for metal ceramics. Glass-infiltrated with partially sintered alumina, the
InCeram
74
What are the polycrsyaline solids?
These are solid-sintered monophase ceramics. They can be made of aluminous-oxide or zirconia
75
What are the classifications of ceramics based on processing technique? (3)
- Powder-liwuid
- pressable blocks
- CAD/CAM
76
What is a powder-liquid ceramic?
glass-based systems, generally made for veneering cores made from either
metal, alumina or zirconia
77
What is a pressable block ceramic?
of glass-based systems (Vitabloc Mark II for the CEREC, IPS Empress), for inlays
and onlays, anterior crowns.
78
What is a CAD/CAM ceramic?
used for cores that will be veneered with a powder-liquid porcelain
