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Flashcards in Cementum Deck (78)
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Dental tissue that is both component of tooth and periodontium?

Cementum

1

True or false. Cementum is thicker in the cervical area.

False. Thicker in apical root

2

True or false. Bone is more mineralized than cementum?

True

3

Color of cementum?

Light yellow

4

True or false. Cementum has no luster?

True

5

Causes of cementum exposure? (2)

  • Gingival recession
  • Supraeruption

6

% of inorganic component of cementum?

45-50%

7

Components of organic matrix of cementum? (3)

  • Collagen
  • Chondroitin sulfate
  • Water

8

True or false. Enamel contains collagen?

False

9

Describe the resorbed surface of cementum.

Scalloped

10

True or false. Alveolar bone is more easily resorbed than cementum.

True

12

Type of repair in cementum:

a. Where lacunae is partially filled?

b. When completely filled?

Functional repair

Anatomical repair

13

Type of cementum repair where physiologic width of periodontal space is reestablished?

Functional repair

14

Type of cementum repair where continuity of root surface is reestablished?

Anatomical repair

15

Type of cementum:

Contains neither cementocytes nor collagen fibers?

Acellular afibrillar cementum

16

Other term for acellular afibrillar cementum?

Coronal cementum

17

Extrinsic collagen fibers?

Sharpey's fibers

18

Type of cementum:

Consisting of sharpeys fibers?

Acellular extrinsic fiber cementum

19

Other terms for acellular extrinsic fiber cementum?

  • Primary cementum
  • Fibrous cementum

20

What part of root where acellular maybe mixed with cellular cementum?

Middle 1/3 of root

21

Type of cementum:

Contains extrinsic and intrinsic collagen fibers?

Cellular mixed fiber cementum

22

Another term for cellular mixed fiber cementum?

Secondary cementum

23

Type of cementum formed facing furcations?

Cellular mixed fiber or secondary cementum

24

True or false. Secondary cementum formation is a continuous process.

True

25

True or false. Thickness of cementum increase with age.

True

26

Type of cementum:

Contains cementocytes and intrinsic collagen fibers?

Cellular intrinsic fibers

27

Type of cementum formed only during reparative process?

Cellular intrinsic fiber cementum

28

Noncellular amorphous layer of cementum?

Intermediate cementum

29

First layer of cementum deposited?

Intermediate cementum

30

Intermediate cementum contains ____ instead of collagen.

Enamelin