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Perio > Oral Mucosa > Flashcards

Oral Mucosa Flashcards

1
Q

Masticatory Mucosa

A

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

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2
Q

Rete Pegs

A

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

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3
Q

Lining Mucosa

A

NON KERATINZED stratified squamos * Buccal * Labial

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4
Q

Specialized Mucosa

A

Taste buds Dorsum of the Tongue

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5
Q

Layers of Gingival Epithelium

A

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

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6
Q

What cells reside in the Stratum Basales?

A

Keratinocytes Melanocyte Langerhans Cell

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7
Q

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

A

Collagen III Collagen IV Collagen VII

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8
Q

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

A

Hemidesmosomes

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9
Q

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

A

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

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10
Q

What type of tissue is nonkeratinized?

A

Lining Mucosa - buccal and labial

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11
Q

What is parakeratinized tissue?

A

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

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12
Q

What does the PERIODONTIUM consist of?

A

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

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13
Q

What are the functions of periodontium?

A

Shock absorber, sensory input, tooth support, nutritive

ARMAD

A - Attachment

R - Resist

M - Maintain

A - Adjust

D - Defense

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14
Q

List 3 aspects of Gingival margin (free gingiva)?

A

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

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15
Q

What is the normal range of the sulcus?

A

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

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16
Q

What are the two types of gingival biotype?

A

Thin Thick

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17
Q

Thin gingival biotype

A

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

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18
Q

Thick gingival biotype

A

Healthy, ideal for crown placement Quadratic formed teeth

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19
Q

Sulcus

A

Healthy * Enamel and Nonkeratinized marginal gingiva *Semipermeable membrane

20
Q

Pocket

A

Unhealthy

21
Q

What is at the bottom of the sulcus?

A

Junctional epithelium

22
Q

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

A

Non-keratinized Semipermeable

23
Q

What is Gingival Crevicular Fluid?

A

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.

24
Q

How is the fluid created?

A

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

25
Q

Inflammation of sulcus

A

More bacteria pulling out more fluid

26
Q

How do you collect gingival crevicular fluid?

A

Extracravicular - filter paper Intracrevicular - pipet, washings

27
Q

What are two major components of gingival crevicular fluid?

A

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

28
Q

What are the layers of the Basal Lamina?

A

Lamina Lucida Lamina Densa Anchoring Fibers Lamina Fibroreticularis

29
Q

What components do you find in the Lamina Lucida?

A

integrins laminins enactins dystroglycans

30
Q

What components do you find in the Lamina Densa?

A

Collagen IV Perclan (non aggregating proteoglycans)

31
Q

What components do you find in the Lamina Fibroreticularis?

A

Collagen III

32
Q

What are the anchoring fibers ins the Basal Lamina?

A

Collagen VII Fibrillin

33
Q

Periodontium does not include (4)?

A

Enamel Dentin Calcaneous bone Pulp

34
Q

Why does the periodontium give sensory information?

A

Necessary for proper positioning of the jaw

35
Q

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

A

Keratinocytes Melanocytes Desmosomes Tonofilaments (keratin) Basal Lamina Hemidesmosomes

36
Q

FGM stands for?

A

Free Gingival Margin (Free Gingiva)

37
Q

Gingival Margin

A

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

38
Q

Label this image.

A
  1. Lining Mucosa (alveolar mucosa) 2. Mucogingival junction 3.
39
Q

Label this image

A
  1. Gingival Sulcus 2. Marginal Gingiva 3. Marginal Groove 4. Attached Gingiva 5. Mucogingival Junction 6. Alveolar Mucosa
40
Q

What is the main cell in connective tissue?

A

Fibroblasts

41
Q

What layer of the epithelium is shed often?

A

Stratum Corneum - determines if keratinized, bacteria attach here.

42
Q

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

A

TRUE

43
Q

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

A

Gingival Sulcus

Attached Gingiva

Interdental Gingiva

Free Gingiva

44
Q

What are the gingival boundaries? Coronal? Apical?

A

Coronal - Marginal Gingiva (margin)

Apical - Alveolar Mucosa

45
Q

GCF pre-inflammatory is called?

A

Transduate

46
Q

GCF - inflammatory is called a?

A

exudate

47
Q

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

A

Antibodies

Perio (8 decks)

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