Oral Mucosa

Question 1

Masticatory Mucosa

Answer 1

KERATINIZED stratified squamos Contains Rete Pegs *Hard Palate *Attached Gingiva

Question 2

Rete Pegs

Answer 2

Extensions of epithelium into the connective tissue. Downward thickening of epidermis Allows for larger surface area for attachement

Question 3

Lining Mucosa

Answer 3

NON KERATINZED stratified squamos * Buccal * Labial

Question 4

Specialized Mucosa

Answer 4

Taste buds Dorsum of the Tongue

Question 5

Layers of Gingival Epithelium

Answer 5

Stratum Basales Stratum Spinosum Stratum Granulosum Stratum Corneum - bacteria attach here

Question 6

What cells reside in the Stratum Basales?

Answer 6

Keratinocytes Melanocyte Langerhans Cell

Question 7

What type of collagen fibers are found in the basement membrane?

Answer 7

Collagen III Collagen IV Collagen VII

Question 8

What cellular structure is critical for the integration between CT and epithelial tissue?

Answer 8

Hemidesmosomes

Question 9

What type of mucosal tissue is keratinized and what is it’s function?

Answer 9

Attached Gingiva, Palate, Free Gingiva Protects against abrasion and bacteria

Question 10

What type of tissue is nonkeratinized?

Answer 10

Lining Mucosa - buccal and labial

Question 11

What is parakeratinized tissue?

Answer 11

Tissue that is immaturely keratinized or non keratinized tissue undergoing an inflammatory response.

Question 12

What does the PERIODONTIUM consist of?

Answer 12

Cementum Periodontal ligament Alveolar Bone (cortical bone) Gingiva * Attached * Free (marginal) * Interdental

Question 13

What are the functions of periodontium?

Answer 13

Shock absorber, sensory input, tooth support, nutritive

ARMAD

A - Attachment

R - Resist

M - Maintain

A - Adjust

D - Defense

Question 14

List 3 aspects of Gingival margin (free gingiva)?

Answer 14

Fits snuggly but not attached Located CORONAL to CEJ Can be pulled away with a probe Forms the soft tissue wall of the gingival sulcus

Question 15

What is the normal range of the sulcus?

Answer 15

0 mm to 3 mm From pre gingival margin to junctional epithelium

Question 16

What are the two types of gingival biotype?

Answer 16

Thin Thick

Question 17

Thin gingival biotype

Answer 17

Can see probe tip, not ideal for crown placement ** can get inflamed easier Slender teeth

Question 18

Thick gingival biotype

Answer 18

Healthy, ideal for crown placement Quadratic formed teeth

Question 19

Sulcus

Answer 19

Healthy * Enamel and Nonkeratinized marginal gingiva *Semipermeable membrane

Question 20

Pocket

Answer 20

Unhealthy

Question 21

What is at the bottom of the sulcus?

Answer 21

Junctional epithelium

Question 22

What are properties of the wall of the sulcus (2)?

Answer 22

Non-keratinized Semipermeable

Question 23

What is Gingival Crevicular Fluid?

Answer 23

Fluid found in the sulcus Cleanses the gingival sulcus Aids in adhesion Antibody defense Replaced several times a day GCF fluid represents extracellular fluid - per inflammatory. On stimulation it becomes the inflammatory exudate.

Question 24

How is the fluid created?

Answer 24

Residential plaque has a high molecular weight. This pulls fluid out of the epithelium into the sulcus. Osmotic pressure…

Question 25

Inflammation of sulcus

Answer 25

More bacteria pulling out more fluid

Question 26

How do you collect gingival crevicular fluid?

Answer 26

Extracravicular - filter paper Intracrevicular - pipet, washings

Question 27

What are two major components of gingival crevicular fluid?

Answer 27

Enzymatic - host or bacterial derived Non enzymatic - cellular, electrolytes, organic molecules

Question 28

What are the layers of the Basal Lamina?

Answer 28

Lamina Lucida Lamina Densa Anchoring Fibers Lamina Fibroreticularis

Question 29

What components do you find in the Lamina Lucida?

Answer 29

integrins laminins enactins dystroglycans

Question 30

What components do you find in the Lamina Densa?

Answer 30

Collagen IV Perclan (non aggregating proteoglycans)

Question 31

What components do you find in the Lamina Fibroreticularis?

Answer 31

Collagen III

Question 32

What are the anchoring fibers ins the Basal Lamina?

Answer 32

Collagen VII Fibrillin

Question 33

Periodontium does not include (4)?

Answer 33

Enamel Dentin Calcaneous bone Pulp

Question 34

Why does the periodontium give sensory information?

Answer 34

Necessary for proper positioning of the jaw

Question 35

What cells and compents are found in the gingival epithelium? (6)

Answer 35

Keratinocytes Melanocytes Desmosomes Tonofilaments (keratin) Basal Lamina Hemidesmosomes

Question 36

FGM stands for?

Answer 36

Free Gingival Margin (Free Gingiva)

Question 37

Gingival Margin

Answer 37

Where the free gingiva meets the tooth structure. Thin and rounded.

Question 38

Label this image.

Answer 38

1. Lining Mucosa (alveolar mucosa) 2. Mucogingival junction 3.

Question 39

Label this image

Answer 39

1. Gingival Sulcus 2. Marginal Gingiva 3. Marginal Groove 4. Attached Gingiva 5. Mucogingival Junction 6. Alveolar Mucosa

Question 40

What is the main cell in connective tissue?

Answer 40

Fibroblasts

Question 41

What layer of the epithelium is shed often?

Answer 41

Stratum Corneum - determines if keratinized, bacteria attach here.

Question 42

Periodontal tissues are interdependent and are subject to variations and changes due to age or disease. T or F

Answer 42

TRUE

Question 43

What are the anatomical areas of the gingiva (4)?

Answer 43

Gingival Sulcus Attached Gingiva Interdental Gingiva Free Gingiva

Question 44

What are the gingival boundaries? Coronal? Apical?

Answer 44

Coronal - Marginal Gingiva (margin) Apical - Alveolar Mucosa

Question 45

GCF pre-inflammatory is called?

Answer 45

Transduate

Question 46

GCF - inflammatory is called a?

Answer 46

exudate

Question 47

What will be increased in the GCF when there is inflammation?

Answer 47

Antibodies