Dentin

Question 1

Obliterated meaning?

Answer 1

destroy

Question 2

Attrition meaning?

Answer 2

wear on teeth by tooth to tooth contact

Question 3

Abrasion meaning?

Answer 3

wearing away of tooth structure due to mechanical wear (ex. brushing too hard)

Question 4

Dentinogenesis starts at the bell stage? True or False

Answer 4

True

Question 5

What do odontoblasts produce?

Answer 5

dentin

Question 6

If a patient has a condition known as “rootless teeth” what is the term for this condition?

Answer 6

Dentin Dysplasia

Question 7

Since patients with Dentin Dysplasia may lose all teeth by age 40, what is the treatment recommended?

Answer 7

Implants or Dentures

Question 8

After odontoblasts polarize they form a matrix of ____% collagen fibers and ____% noncollagenous proteins.

Answer 8

90%, 10%

Question 9

Dentinogenesis Imperfecta is characterized by __________ or ___________ tooth color.

Answer 9

blue-gray or yellow-brown

Question 10

Color of Dentin?

Answer 10

Yellow

Question 11

Dentin classifications?

Answer 11

Primary
Secondary
Reparative/ Tertiary

Question 12

What is Dentin composed of?

Answer 12

Organic matrix of collagen fibers 20%

Mineral hydroxyapatite 70%