Question 1

Which of the following is not considered a noble metal in dentistry?

Accepted Answer

A)  Gold 
B)  Silver 
C)  Platinum 
D)  Palladium 
A)  Gold 
B)  Silver 
C)  Platinum 
D)  Palladium

Question 2

Why is silver added to casting alloy?

Accepted Answer

A)  Enhance bond strength 
B)  Prevent oxidation 
C)  Harden the gold 
D)  Prevent tarnish 
A)  Enhance bond strength 
B)  Prevent oxidation 
C)  Harden the gold 
D)  Prevent tarnish

Question 3

When a molten (liquid) alloy freezes, crystals _____ and _____ as the material cools.

Accepted Answer

A)  dissolve; disperse 
B)  form; dissolve 
C)  grow; disperse 
D)  form; grow 
A)  dissolve; disperse 
B)  form; dissolve 
C)  grow; disperse 
D)  form; grow

Which of the following is not considered a noble metal in dentistry?

Why is silver added to casting alloy?

When a molten (liquid) alloy freezes, crystals _ and _ as the material cools.

Introduction to Restorative Dental Materials

Properties of Materials

Preventive Dental Materials

Direct Esthetic Restorative Materials

Dental Amalgam

Finishing, Polishing, and Cleansing Materials

Cements

Impression Materials

Model and Die Materials

Waxes

Casting, Soldering, and Welding

Polymers in Prosthodontics

Dental Ceramics

Dental Implants

Filters

Exam 11: Casting Alloys, Wrought Alloys, and Solders

Which of the following is not considered a noble metal in dentistry?

Why is silver added to casting alloy?

When a molten (liquid) alloy freezes, crystals _____ and _____ as the material cools.

Introduction to Restorative Dental Materials

Properties of Materials

Preventive Dental Materials

Direct Esthetic Restorative Materials

Dental Amalgam

Finishing, Polishing, and Cleansing Materials

Cements

Impression Materials

Model and Die Materials

Waxes

Casting, Soldering, and Welding

Polymers in Prosthodontics

Dental Ceramics

Dental Implants

Filters

When a molten (liquid) alloy freezes, crystals _ and _ as the material cools.