Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Histopathology > Gingival Fiber and PDL > Flashcards

Gingival Fiber and PDL Flashcards

1
Q

What 2 cell types are active in compression of PDL>

A

Fibroclasts and osteoclasts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The ____ fibers of the PDL go around the root of tooth

A

Apical

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

After the damaged tissue is replaced, A _____ response is usually present, in
which heparin and histamine are released –
this inflammatory response helps the
necessary cells reach their target.

A

mast cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

______ fibers of PDL Resist intrusive force

A

Oblique

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

_____ of the PDL line blood vessels

A

Endothelial cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

_____ group of GFL that wraps around the tooth

A

Circular

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Remains of Hetwig’s root sheath – duct-like appearance

Purpose is unknown; More prevalent in the apical areas of adolescents; May have some effect on cementogenisis

A

Epithelial rests of Malassez

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q 
Resident Cell Populations of the \_\_\_\_
 Fibroblasts
 Osteoblasts
 Cementoblasts
 Macrophages
 Undifferentiated mesenchymal cells
 Endothelial cells
 Epithelial cells
A

PDL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q 
Functions of the \_\_\_ include:
 Supportive
 Regenerative
 Nutritional
 Sensory
 Protective
A

PDL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Cells in the most peripheral zone (outer) of the dental follicle give rise to the

A

alveolar bone proper

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

______ fibers of PDL Resist horizontal & tipping force

A

Horizontal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

excessive functional stresses
placed on a tooth by an antagonist (or removable prosthesis)
that exceeds the limits of physiologic adaptation.
• Resorption of alveolar bone parallel to the long axis of the root
• A PDL that is wider than normal average width (i.e., > 0.17 mm in
adult)
• Tooth mobility

A

Trauma From Occlusion:

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

_____ group of GFL goes from alveolar crest to gingival

A

Alveolargingival

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The ______ is derived from odontogenic
epithelium located in the connective tissues
of the gingiva known as the epithelial rests
of Serres (remnants of dental lamina).

A

gingival cyst

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

______, _____, and ______ fibers of GFL Resist gingival displacement

A

Dentogingival, alveologingival, and circumferential

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

The ____ function of the PDL: supplied from blood vessel

A

Nutritional

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

The ____ fibers of the PDL have an angled attachement

A

oblique

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

_____ of the PDL come from gingiva

A

Epithelial cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

______ fibers of GFL Resist gingival displacement

& tooth separation

A

Semicircular

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

______ and ______ fibers of PDL Resist vertical force

A

Apical and Alveolar crest

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

if the injury is slight, and the responding cells are from the (i.e. undifferentiated cells), these cells have the
potential to regenerate all tissues involved in tooth
support, and the PDL will be restored

A

PDL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Which ligament of tooth is more apical?

A

PDL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

_____ group of GFL goes from tooth to alveolar crest

A

Dentoperiosteal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

The ____ function of the PDL: cushioning of tooth

A

Protective

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

_____ group of GFL that creates a sling around the tooth; help to orient the tooth buccolingually

A

Semicircular

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

_____ group of GFL that goes from buccal to lingual papilla to help keep these papillae attached to the tooth

A

Transgingival

27
Q

____ are sources of undifferentiated cells; centered around vascular spots

A

Interstitial spaces

28
Q

The ____ function of the PDL: performed by tactile receptors

A

Sensory

29
Q

The ____ function of the PDL: undifferentiated cells help to repair PDL, cementum, and bone

A

Regenerative

30
Q

_____ of the PDL are used in resorption; immune response

A

Macrophages

31
Q

_____ group of GFL that goes from tooth to tooth to stabilize teeth mesiodistally

A

Transseptal

32
Q

What type of cell are active in tension of PDL?

A

Osteoblasts

33
Q

Cells in the most proximal (inner) give rise to

A

cementoblasts

34
Q 
The PDL on the tooth root opposite the
compression side is characterized by
\_\_\_\_\_\_\_ or \_\_\_\_\_\_ of the PDL principle
fibers; results in bone
apposition.
A

tension or stretching

35
Q

The _______ consists of small
diameter collagen fibers in random orientation that
provide support for the principle fiber groups.

A

indifferent fiber plexus

36
Q

Which zone of dental papilla does the PDL come from?

A

Intermediate zone

37
Q

What ligament of tooth is more coronal?

A

Gingival Fiber ligament (GFL)

38
Q

The ____ function of the PDL: suspends tooth in socket

A

Supportive

39
Q

_____ group of GFL goes from tooth to gingiva

A

Dentogingival

40
Q

The PDL _______ are a source of mesenchymal

cells that can differentiate into: cementoblasts, osteoblasts, and fibroblasts

A

interstitial spaces

41
Q

The ______ response is similar to the

trauma response of the PDL.

A

wound healing

42
Q

Violation of the ______ due to placement of
overextended restoration margins will result in chronic
inflammation and, given sufficient time, induce loss of
supporting alveolar bone with formation of a diseased
periodontal pocket.

A

biological width

43
Q 
Orthodontic tooth movement results in
\_\_\_\_\_ of the PDL on the side of the
root corresponding to the direction of
movement; results in loss of principle fiber orientation
and resorption of adjacent bone.
A

compression

44
Q 
In \_\_\_\_\_\_ The membrane excludes
gingival epithelial tissues from
the deeper part of the wound,
and allows only cells from the
existing PDL to repopulate the
wound
A

Guided tissue regeneration

45
Q

 if the injury is significant, and the cells that respond
are from the surrounding _____, the result will be
ankylosis

A

alveolar bone

46
Q

_____ of the PDL repair collagen

A

Fibroblasts

47
Q

A tooth with no occlusal antagonist will
exhibit:
• A significant decrease in density of bony trabeculae
• Decreased width of the PDL (< 0.17 mm)
• Loss of orientation of the principle fibers of the PDL
• Increased volume of the bone marrow spaces

A

Disuse Atrophy:

48
Q 
Provide rigidity and density to the
 marginal gingiva
 Act as a periosteum for the interproximal
 crestal alveolar bone
 Provide one-half of the biologic width
 Act as a protective barrier for the crestal
 alveolar bone against the spread of
 gingival inflammation
 Inhibit the apical migration of the
 junctional epithelium
A

GFL

49
Q

The _______ typically occurs along the
lateral root surface. It is believed to arise from epithelial
rests (epithelial rest of Malassez in the PDL), when
stimulated. Treatment consists of surgical removal.

A

lateral periodontal cyst

50
Q

_____ of the PDL repair cementum

A

Cementoblasts

51
Q

______ fibers of GFL Resist tooth separation

A

Transseptal

52
Q

_______ is the area of junctional epithelium
and gingival fiber ligament attached to the root of a
tooth; extends from the most
coronal attachment of the junctional epithelium to the
crestal alveolar bone.

A

biological width

53
Q

A surgical technique of regenerating the periodontal attachment apparatus on periodontally involved teeth, which uses the differentiation of mesenchymal cells in the interstitial spaces of the PDL and marrow spaces of adjacent alveolar bone.

A

Guided tissue regeneration

54
Q

_____ of the PDL repair bone

A

Osteoblasts

55
Q

The ____ fibers of the PDL are found in furcations of teeth

A

Interradicular

56
Q

There is a proposed linkage between OKC and ___ cytst

A

gingival cysts

57
Q

______ fibers of PDL Resist vertical & lateral force

A

Interradicular

58
Q

First, Undifferentiated cells migrate into the area, as
_____ and ______ remove damaged
tissues.

A

macrophages and PMN’s

59
Q

Fusion of cementum directly with the surrounding alveolar
bone, without the intervening PDL
This is usually a reparative response to PDL injury
The degree of injury, and the type of cells that respond dictate
the type of response

A

Ankylosis:

60
Q

What is the embryological origin of PDL?

A

Neural crest

61
Q

_____ of the PDL provide back up to make more fibers and other things

A

Undifferentitated mesenchymal cells

62
Q

The ____ and _____ fibers of the PDL overlap with dentoperiosteal group of GFL

A

Alveolar crest and horizontal group

63
Q

AFter damaged tissues are removed, _____ and/or _____ replace the damaged tissue.

A

Fibroblasts and/or osteoblasts

Histopathology (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions