Periodontium II

Question 1

What is the composition of cementum?

Answer 1

50% Inorganic

50% organic

Question 2

What is the predominate collagen in cementum?

Answer 2

Type 1 (90%)

Question 3

Primary cementum or Acellular extrinisc covers the…. of the root?

Answer 3

coronal 2/3

Question 4

the secondary cementum or the cellular intrinisc cementum covers the …. of the root?

Answer 4

apical 1/3

Question 5

Intrinsic fibers of the cementum run

Answer 5

up/down

Coronal/apical

Question 6

Extrinsic fibers of the cementum run

Answer 6

sideways

Question 7

Name some attributes of AEFC (4)

Answer 7

Cells on surface
No cemntoid
Slow
Very mineralized

Question 8

What is the function of AEFC?

Answer 8

Attachment of PDL to cementum

Question 9

Name some attributes of CIFC. (4)

Answer 9

Laminar
Encapsulated cells (cementocytes)
Cementoid visible
not in canines or incisors

Question 10

function of CIFC?

Answer 10

adapt for wear

Question 11

where do you find the intermediate cementum?

Answer 11

between the tomes and dental cementum proper

Question 12

What is mixed cementum

Answer 12

AEFC and CIFC

Extrinsic and intrinsic fibers

Question 13

Hypercementosis can cause

Answer 13

toth anklose

Question 14

what is most resistant to resorption?

Answer 14

cementum

Question 15

what are they 5 types of tooth movement

Answer 15

tipping
bodily movement
Extrusive 
Intrusive
Rotational

Question 16

what are four types of net results of tooth movements

Answer 16

compression
tension
hyalinization
undermining