Module 1

Question 1

What are the 4 tissues of the peridontium?

Answer 1

Gingiva
PDL
Cementum
Bone

Question 2

What kinda of bone do we have?

Answer 2

Trabecular, compact and alveolar

Question 3

Is the inside of the sulcus keratinized or non keratinized?

Answer 3

non-keratinized

Question 4

What is the order of the gingiva

Answer 4

gingival margin
free gingiva
free gingival groove
attached gingiva
mucogingival junction
alveolar mucosa

Question 5

What kind of tissue is the gingiva made up of?

Answer 5

connective tissue

Question 6

What is the alveolar bone also known as?

Answer 6

cribiform plate

Question 7

What do epithelial tissues line?

Answer 7

The oral cavity

Question 8

What kind of epithelium lines the oral cavity?

Answer 8

Stratified squamous

Question 9

Do the epithelial tissues have extracellular matrix?

Answer 9

very little

Question 10

What does the epithelium cover?

Answer 10

the underlying connective tissue

Question 11

Does the epithelial tissue have a direct blood supply?

Answer 11

No, depends on the underlying connective tissue

Question 12

What are the 2 types of oral epithelial tissue?

Answer 12

Keratinized and non keratinized

Question 13

Keritanized is also known as

Answer 13

masticatory tissue

Question 14

Where is the keratinized tissue located?

Answer 14

• surrounding the teeth (gingiva, free and attached)

- hard palate

Question 15

Non-keratinized tissue is also known as

Answer 15

lining mucosa

Question 16

Where is the non-keratinized tissue located?

Answer 16

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

Question 17

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

Answer 17

Specialized

Question 18

Where is the specialized oral tissue located?

Answer 18

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

Question 19

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

Answer 19

the basal lamina

Question 20

What are some examples of clinical characteristics?

Answer 20

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

Question 21

What does the gingiva look like on children?

Answer 21

more red

Question 22

What are characteristics of the epiithelium in children?

Answer 22

thinner, less keratinized

Question 23

What does the width of attached gingiva have in children?

Answer 23

less variation in width

Question 24

What are sulcus depths like in children?

Answer 24

increased sulcus depths

Question 25

What do we see in x-rays in children?

Answer 25

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

Question 26

What are the three areas of gingival epithelium?

Answer 26

- oral epithelium - sulcular epithelium - Junctional epithelium

Question 27

What does the oral epithelium cover?

Answer 27

outer surface of free gingiva, attached gingiva

Question 28

How does the oral epithelium interface with connective tissue

Answer 28

in a wavy interface, aka epithelial ridges

Question 29

Where is the sulcuar epithelium?

Answer 29

from crest of gingival margin to coronal edge of JE

Question 30

Is sulcular epithelium keratinized?

Answer 30

No

Question 31

Sulcular epithelium is____ and allows______ from connective tissue

Answer 31

Permeable, fluids

Question 32

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

Answer 32

Smooth

Question 33

Where is the junctional epithelium?

Answer 33

Forms the base of the sulcus | joins gingiva to the tooth

Question 34

What is the length of the junctional epithelium?

Answer 34

1mm

Question 35

Where is the J.E thicker?

Answer 35

coronal area, tapers to apical area

Question 36

Is the J.E. keratinized or nonkeratinized?

Answer 36

non keratinized

Question 37

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

Answer 37

desmosomes

Question 38

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

Answer 38

smooth

Question 39

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

Answer 39

the epithelium to the tooth

Question 40

What does the junctional epithelium provide?

Answer 40

a barrier between biofilm and connective tissue

Question 41

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

Answer 41

hemidesmosomes and internal basal lamina

Question 42

What is the CT interface comprised of?

Answer 42

hemidesmosomes and external basal lamina

Question 43

Is the JE attachment static or not?

Answer 43

not static

Question 44

What is a desmosomes?

Answer 44

attaches JE cells to eachother

Question 45

What is a hemidesmosome?

Answer 45

attaches cells to the tooth surface

Question 46

Hemidesmosome attaches via.....

Answer 46

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

Question 47

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

Answer 47

- epithelial ridges, epithilial rete ridges | - connective tissue papillae

Question 48

What does the wavy interface do?

Answer 48

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

Question 49

What does the epithelium rest on?

Answer 49

connective tissue

Question 50

What cells are included in the connective tissue?

Answer 50

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

Question 51

What is the extracellular matrix?

Answer 51

gel like substance that contains network of fibers

Question 52

What is the lamina propria also known as?

Answer 52

gingival connective tissues

Question 53

What provides stability and rigidity to the gingiva?

Answer 53

CT of free and attached gingiva

Question 54

What attaches the gingiva to cementum/root and to bone

Answer 54

CT of free and attached gingiva

Question 55

What are the gingival fiber bundles?

Answer 55

-collagen fiber bundles coronal to the alveolar bone | -

Question 56

What are the functions of gingival fibers?

Answer 56

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

Question 57

What are some of the gingival fiber groups?

Answer 57

Circular, alveologingival, dentogingival, periostogingival

Question 58

What is the biologic width?

Answer 58

juncitonal epithelium + fiber bundles

Question 59

What is the approximate vertical length of the biologic width?

Answer 59

2 mm

Question 60

What is the biologic width?

Answer 60

distance from the base of the sulcus to the alveolar bone

Question 61

What area does the biologic width cover?

Answer 61

the JE and the CT gingival fiber bundles

Question 62

what breaks down first in the progression of perio?

Answer 62

Gingival fibers