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Flashcards in Alveolar Bone Deck (73)
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0

% of inorganic composition of alveolar bone?

67% hydroxyapatite

1

% of organic composition of alveolar bone?

Collagen %?

Noncollagenous %?

33%

28%

5%

2

Forces alveolar bone can best resist? (2)

  • Compressive forces
  • Forces directed along the long axis of the tooth

3

Forces alveolar bone can least resist? (2)

  • Tensile forces
  • Slicing forces

4

Functions of alveolar bone? (4)

  • Support and protection
  • Attachment of muscles
  • Reservoir of minerals
  • Hemopoiesis

5

Part of maxilla and mandible with the teeth and alveolar sockets?

Alveolar process

6

It is where the alveolar process rests.

Basal bone

7

True or false. Proper development of tooth depends on the alveolar process?

False.

Proper development of alveolar process is dependent on tooth eruption

8

True or false. Alveolar process may be found in newborns?

False. No teeth, no alveolar process

9

True or false. If bone is lost, remodeling occurs and alveolar process is restored

False. No more alveolar process after bone remodeling

10

It is what occurs after remodeling of alveolar bone.

Residual ridge

11

Compose of outer and inner cortical plate of bone that encloses the spongiosa?

Alveolar process

12

Other terms for spongy bone?

Trabecular or cancellous bone

13

Lines the alveolus contained within the alveolar process?

Alveolar bone proper

14

Perforations of the alveolar bone?

Cribriform plate

15

It is formed by the coronal rim of the alveolar bone.

Alveolar crest

16

Alveolar bone parallels the CEJ at a distance of ____ apical to it.

1-2mm

17

True or false. Alveolar bone proper may be fused with the cortical plate of the alveolar process?

True

18

Radiographic term for alveolar bone proper?

Lamina dura

19

Cell responsible for mineralization of bone?

Osteoblast

20

Osteoblasts synthesize what? (2)

  • Type I and IV collagen
  • Cytokines

21

Osteoblasts are derived from what cells?

Mesenchymal stem cells (BM-MSC and liver; CB-MSC)

22

When bone formation stops, osteoblasts become inactive and termed as?

Bone lining cells

23

True or false. The faster bone formation, the more osteocytes trapped.

True

24

Cells responsible for osteolysis and osteoplasia?

Osteocytes

25

Cells that prevent hypermineralization of bone by pumping Ca back to the blood stream?

Osteocytes

26

True or false. After bone formation, osteocytes lose the ability to form matrix and becomes smaller?

True

27

Limited resorption of bone in lacunae and canals?

Osteolysis

28

Secondary rebuilding of perilacunar bone mineral?

Osteoplasia

29

Osteoclasts are located on?

Howship's lacunae