Casting Alloys Flashcards Preview

Intermediate Restorative Skills > Casting Alloys > Flashcards

Flashcards in Casting Alloys Deck (13)
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1
Q

Features of dental alloys?

A

Rarely used in pure form (apart from titanium)

Although alloys of titanium mostly used

2
Q

Dental casting alloy types?

A
Gold alloys
Precious metal alloys
Nickel chromium alloys
Cobalt chromium alloys
Titanium alloys
3
Q

Desirable properties of alloys?

A
Biocompatibility
Corrosion and tarnish resistant 
Optimum mechanical properties
Bond to ceramic (for metal ceramic)
Aesthetic
Cheap
4
Q

RPD alloys?

A

Most common - Co-Cr
Historically Au
Ti alloy available
SLM production is rapidly developing

5
Q

Features of CoCr?

A
Higher density
Lower casting temp
Lower casting shrinkage
Medium tensile strength
High hardness
Low ductility
6
Q

Alloys for metal restorations?

A
Type I-IV Au
Precious metals
CoCr
NiCr
Ti
7
Q

Indication for type I gold alloy?

A

Inlay

8
Q

Indication for type II gold alloy?

A

Onlay

9
Q

Indication for type III gold alloy?

A

Crowns

10
Q

Indication for type IV gold alloy?

A

Crown, bridge, post and core, RPD

11
Q

Examples of non-precious metals?

A

Ni-Cr
Co-Cr
Ti
Ti-AI-V

12
Q

Bonding alloys features?

A

Melting temp
TEC
Oxide layer
Modulus of elasticity

13
Q

Types of alloys?

A

Au alloys
Ni Cr
Co Cr
Ti alloys