Periodontium and Cementum

Question 1

name the PDL fibres at the root apex

Answer 1

apical fibres

Question 2

name the PDL fibres that connect the tooth to the lateral tip of the alveolar bone

Answer 2

horizontal fibres

Question 3

name the PDL fibres that sit at an angle around the tooth

Answer 3

oblique fibres

Question 4

name the PDL fibres at the tip of the alveolar bone

Answer 4

alveolar crest

Question 5

name the PFL fibres between roots

Answer 5

interradicular

Question 6

name the PDL fibres in-between teeth (bridging the tops of the roots at the crown)

Answer 6

transeptal

Question 7

3 types of bone cells?

Answer 7

osteoblasts
osteocytes
osteoclasts

Question 8

name the cementum at the cervical margin

Answer 8

acellular cementum

Question 9

name the cementum at the root apex

Answer 9

cellular cementum

Question 10

what are the fibres within acellular cementum called?

Answer 10

sharpey fibres

Question 11

what are the black dots visible within cellular cementum called?

Answer 11

cementocyte lacunae

Question 12

name and describe 3 types of lamella in alveolar bone

Answer 12

concentric lamella - around each group of blood vessels and contain osteoclasts and cementing lines
interstitial lamella - inbetween circles of concentric lamella
circumferential lamella - around concentric and interstitial lamella