Materials for prosthetic teeth and linings

Question 1

What types of artificial teeth can be used for dentures?

Answer 1

• acrylic
• porcelain

Question 2

How are acrylic artificial teeth produced?

Answer 2

• produced in reusable moulds by dough moulding technique of injection moulding
• incorporate tooth coloured pigments

Question 3

How are porcelain artificial teeth produced?

Answer 3

produced in moulds that are 30% larger than required as when fired shrink

Question 4

How are acrylic teeth retained in dentures?

Answer 4

my chemical interaction

Question 5

How are porcelain teeth retained in dentures?

Answer 5

by mechanical retention for denture base via holes and pins

Question 6

In terms of appearance, how do acrylic and porcelain teeth compare?

Answer 6

both realistic but porcelains slightly better

Question 7

Are acrylic or porcelain teeth more likely to suffer abrasion?

Answer 7

acrylic

Question 8

Are acrylic or porcelain teeth more likely to chip and fracture?

Answer 8

porcelain

Question 9

What is a negative of porcelain teeth that may bother the patient?

Answer 9

porcelain teeth click on chewing and transmit greater load to denture bearing area

Question 10

What is a positive of acrylic teeth (particularly for the lab)?

Answer 10

occlusal adjustment far easier with acrylic teeth