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Perio > Module 1 > Flashcards

Module 1 Flashcards

1
Q

What are the 4 tissues of the peridontium?

A

Gingiva
PDL
Cementum
Bone

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2
Q

What kinda of bone do we have?

A

Trabecular, compact and alveolar

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3
Q

Is the inside of the sulcus keratinized or non keratinized?

A

non-keratinized

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4
Q

What is the order of the gingiva

A 
gingival margin
free gingiva
free gingival groove
attached gingiva
mucogingival junction
alveolar mucosa
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5
Q

What kind of tissue is the gingiva made up of?

A

connective tissue

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6
Q

What is the alveolar bone also known as?

A

cribiform plate

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7
Q

What do epithelial tissues line?

A

The oral cavity

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8
Q

What kind of epithelium lines the oral cavity?

A

Stratified squamous

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9
Q

Do the epithelial tissues have extracellular matrix?

A

very little

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10
Q

What does the epithelium cover?

A

the underlying connective tissue

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11
Q

Does the epithelial tissue have a direct blood supply?

A

No, depends on the underlying connective tissue

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12
Q

What are the 2 types of oral epithelial tissue?

A

Keratinized and non keratinized

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13
Q

Keritanized is also known as

A

masticatory tissue

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14
Q

Where is the keratinized tissue located?

A
  • surrounding the teeth (gingiva, free and attached)

- hard palate

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15
Q

Non-keratinized tissue is also known as

A

lining mucosa

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16
Q

Where is the non-keratinized tissue located?

A
  • sulcar, col, junctional epithelium
  • cheeks vestibule, soft palate oral pharynx
  • floor of mouth, ventral of tongue
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17
Q

There is a 3rd type of oral epithelial tissue, what is it?

A

Specialized

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18
Q

Where is the specialized oral tissue located?

A

Dorsal of tongue (filiform, fungiform, foliate, circumvallate)

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19
Q

What is the layer that separates the epithelium from connective tissue?

A

the basal lamina

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20
Q

What are some examples of clinical characteristics?

A

color, shape, size, contour, consistency, texture, position of margin, amt of attached gingiva, bleeding, exudate, papillae shape, col

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21
Q

What does the gingiva look like on children?

A

more red

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22
Q

What are characteristics of the epiithelium in children?

A

thinner, less keratinized

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23
Q

What does the width of attached gingiva have in children?

A

less variation in width

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24
Q

What are sulcus depths like in children?

A

increased sulcus depths

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25
Q

What do we see in x-rays in children?

A

variation between CEJ and alveolar crest, PDL is wider, immature bone

26
Q

What are the three areas of gingival epithelium?

A
  • oral epithelium
  • sulcular epithelium
  • Junctional epithelium
27
Q

What does the oral epithelium cover?

A

outer surface of free gingiva, attached gingiva

28
Q

How does the oral epithelium interface with connective tissue

A

in a wavy interface, aka epithelial ridges

29
Q

Where is the sulcuar epithelium?

A

from crest of gingival margin to coronal edge of JE

30
Q

Is sulcular epithelium keratinized?

A

No

31
Q

Sulcular epithelium is____ and allows______ from connective tissue

A

Permeable, fluids

32
Q

What kind of interface does sulcular epithelium have with connective tissue?

A

Smooth

33
Q

Where is the junctional epithelium?

A

Forms the base of the sulcus

joins gingiva to the tooth

34
Q

What is the length of the junctional epithelium?

A

1mm

35
Q

Where is the J.E thicker?

A

coronal area, tapers to apical area

36
Q

Is the J.E. keratinized or nonkeratinized?

A

non keratinized

37
Q

How are the layers of the cells attached to eachother in the J.E?

A

desmosomes

38
Q

What kind of interface does the J.E. have with connective tissue

A

smooth

39
Q

The J.E. is a biological mechanism that joins what?

A

the epithelium to the tooth

40
Q

What does the junctional epithelium provide?

A

a barrier between biofilm and connective tissue

41
Q

What is the tooth interface comprised of in the J.E?

A

hemidesmosomes and internal basal lamina

42
Q

What is the CT interface comprised of?

A

hemidesmosomes and external basal lamina

43
Q

Is the JE attachment static or not?

A

not static

44
Q

What is a desmosomes?

A

attaches JE cells to eachother

45
Q

What is a hemidesmosome?

A

attaches cells to the tooth surface

46
Q

Hemidesmosome attaches via…..

A

internal basal lamina and to the connective tissue via the external basal lamina

47
Q

What is the wavy boundary where epithelium and connective tissue meets?

A
  • epithelial ridges, epithilial rete ridges

- connective tissue papillae

48
Q

What does the wavy interface do?

A

1- enhances surface area for ahesion of epitheilium to connetive tissue
2-increases the vascular supply from connective tissue

49
Q

What does the epithelium rest on?

A

connective tissue

50
Q

What cells are included in the connective tissue?

A

fibroblasts- fiber builders
macrophages & neutrophils- defense
Lymphocytes- involved in immune response

51
Q

What is the extracellular matrix?

A

gel like substance that contains network of fibers

52
Q

What is the lamina propria also known as?

A

gingival connective tissues

53
Q

What provides stability and rigidity to the gingiva?

A

CT of free and attached gingiva

54
Q

What attaches the gingiva to cementum/root and to bone

A

CT of free and attached gingiva

55
Q

What are the gingival fiber bundles?

A

-collagen fiber bundles coronal to the alveolar bone

-

56
Q

What are the functions of gingival fibers?

A

brace the gingiva, resist mastication, unite free gingiva with cementum and alveolar bone, help control adjacent tooth positioning

57
Q

What are some of the gingival fiber groups?

A

Circular, alveologingival, dentogingival, periostogingival

58
Q

What is the biologic width?

A

juncitonal epithelium + fiber bundles

59
Q

What is the approximate vertical length of the biologic width?

A

2 mm

60
Q

What is the biologic width?

A

distance from the base of the sulcus to the alveolar bone

61
Q

What area does the biologic width cover?

A

the JE and the CT gingival fiber bundles

62
Q

what breaks down first in the progression of perio?

A

Gingival fibers

Perio (11 decks)

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