Alveolar bone

Question 1

Alveolar bone is necessary for:
..... attachement
bone .........
reservoir for ...... ions
plasticity and ..........

Answer 1

bone
marrow
calcium
remodelling

Question 2

Alveolar bone depends on tooth …… for ……… and tooth ………. for ………

Answer 2

eruption
development
retention
maintenance

Question 3

Alveolar bone is ……… bone and has …… layers of …….. bone

Answer 3

spongy
two
compact/cortical

Question 4

On the inside compact bone gives attachment to the fibres of the ………. ………….

Answer 4

periodontal ligament

Question 5

Alveolar bone has many openings for blood vessels and nerves as perforated and is called the ………. ………

Answer 5

cribriform plate

Question 6

Radiographically more radio dense due to presence of thick bone called …… ………

Answer 6

lamina dura

Question 7

What does interradicular septum separate

Answer 7

separates roots of multi-root teeth

Question 8

What does interdental septum separate

Answer 8

separates two adjacent teeth

Question 9

What cells break down bone

Answer 9

osteoclasts

Question 10

What type of trabaculae is seen is the maxilla and in the mandibular and what is it like

Answer 10

type I - mandibular - horizontal

type II - maxilla - delicate

Question 11

Function of cementum

Answer 11

joins enamel at cervix of tooth
anchors teeth to bony walls of socket
anchors gingival + periodontal fibres
protects dentin
formed continuously

Question 12

Acellular cementum : (primary cementum)
cells present:
rate of deposition:
incremental lines:
precementum layer

Answer 12

no cells
slow deposition
close incremental line
thin layer

Question 13

Cellular cementum: (secondary cementum)
cells present:
rate of deposition:
incremental lines:
precementum layer:

Answer 13

cementocytes
fast deposition
far apart lines
thick layer

Question 14

What do osteoprogenitor cells give rise to

Answer 14

osteoblasts

Question 15

What type of cells are osteoblasts

Answer 15

bone forming cells

Question 16

What type of cells are osteocytes

Answer 16

encased osteoblasts

Question 17

What type of cells are osteoclasts and what do they derive from

Answer 17

bone degrading

monocytes

Question 18

What do bone-lining cells regulate

Answer 18

movement of calcium + phosphate into and out of bone

Question 19

When bone deposition by osteoblasts is halted temporarily then resumed a ……… ……… is formed

Answer 19

resting line

Question 20

Resorption by osteoclasts results in ……… ……..

Answer 20

reversal lines

Question 21

As cellular cementum develops the cementoblasts become inactivated known as ………. which are contained in the ……… spread along the ……… to join up with other ……… and are directed towards the ……….. ……… from which they obtain nutrients

Answer 21

cementocytes
lacunae
canaliculi 
cementocytes 
periodontal ligament