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Periodontics I > Quiz 1 > Flashcards

Quiz 1 Flashcards

1
Q

Characteristics of masticatory mucosa

A

Keratizined Stratified Squamous Epithelium Dorsum of tongue, hard palate, and attached gingiva They also have rete pegs

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2
Q

Characteristics of lining mucosa

A

Non-keratinized stratified squamous epithelium Buccal mucosa (cheeps) and Labial mucosa (lips)

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3
Q

Characteristics of specialized mucosa

A

Dorsum of tongue, and taste buds on lingual papillae

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4
Q

What are rete pegs?

A

They are downward thickenings of epidermis between the dermal papillae

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5
Q

Gingival Epithelium Diagram and Layers

A
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6
Q

Molecules and Layers of the Basement Membrane

A

Epithelial Tissue (outer)

-Basal Lamina

Lamina Lucida

  • Laminin
  • Integrins
  • Entactins
  • Dystroglycans

Lamina Densa

-Collagen IV

Attaching Proteins

  • Collagen VII
  • Fibrillin

Lamina Reticularis

-Collagen III

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7
Q

Electron Microscope Image of Basal Lamina

A
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8
Q

What are the four tissues of periodontium?

A
  1. Gingiva
    1. Attached
    2. Unattached (marginal, free)
    3. Interdental
  2. Cementum
  3. Periodontal Ligament
  4. Alveolar Supporting Bone
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9
Q

Picture of the Periodontium

A
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10
Q

Periodontium does not include:

A
  1. Enamel
  2. Dentin
  3. Pulp
  4. Surrounding bone of the alveolar process
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11
Q

Functions of the periodontium are:

A
  1. Attach (tooth support)
  2. Resist (forces of mastication)
  3. Maintain (nutritive - blood vessels provide for PDL)
  4. Adjust (sensory receptor for jaw positioning)
  5. Defend
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12
Q

What are the five different histological features of Gingival Epithelium?

A
  1. Keratinocytes
  2. Desmosomes
  3. Tonofilaments
  4. Basal Lamina
  5. Hemidesmosomes
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13
Q

What are the 4 anatomical areas of the gingiva?

A
  1. Free gingiva (marginal)
  2. Gingival Sulcus (sulcus = healthy, pocket = inflamed)
  3. Interdental Gingiva
  4. Attached Gingiva
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14
Q

Picture of Anatomic Landmarks of Gingiva: KNOW THIS

A
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15
Q

Real Image of Anatomical Areas of Gingiva:

A

The attached gingiva will have many rete pegs, but the alveolar mucosa will not.

Attached gingiva is keratinized while the alveolar mucosa is not.

The interdental gingiva can also be called the interdental papilla.

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16
Q

Characteristics of Free Gingiva

A
  1. Located coronal to the CEJ
  2. Surrounds the tooth but is unattached
  3. Can be pulled away from tooth with a probe
  4. Forms soft tissue wall of gingival sulcus
  5. The round coronal end is called the gingival margin
  6. Keratinized Stratified Squamous Epithelium
  7. The internal aspect of free gingiva is non-keratinized
  8. Thick and thin biotype has to do with gingival margin
17
Q

Characteristics of the Gingival Sulcus:

A
  1. It is the space between the free gingiva and the tooth surface
  2. Normal sulcus is measured as 1 to 3 mm
  3. Base of sulcus is formed by junctional epithelium
  4. The wall of the sulcus is non-keratinized (which would be the interal aspect of the free gingiva)
18
Q

Functions of the Gingival Crevicular Fluid (GCF)

A
  1. Cleanses the gingival sulcus
  2. Aids in adhesion of the epithelium to the tooth
  3. Possesses antimicrobial properties
  4. Exerts antibody activity in defense of the gingiva
19
Q

What type of fluid is Gingival Crevicular Fluid? Transduate or Interstitial?

A
  1. The GCF represents the interstitial fluid which appears in the crevice as a result of the osmotic gradient (high molecular weight molecules draw in fluid from the connective tissue into the sulcus)
  2. The initial, pre-inflammatory fluid is considered to be a transduate
  3. On stimulation, it becomes an inflammatory exudate
20
Q

What is the composition of Gingival Crevicular Fluid?

A
  1. Enzymatic Components
    1. Host-derived and other products
    2. Bacteria-derived
  2. Non-enzymatic Components
    1. Cellular components
    2. Electrolytes
    3. Organic components
21
Q

What are the different methods of collection for Gingival Crevicular Fluid?

A
  1. Intraclevicular washings
  2. Absorbing paper strips
  3. Micropipettes
  4. Twisted threads
  5. Periotron
22
Q

What are some of the enzymes specific to host-derived that are found in GCF?

A

Elastase, Aspartate Aminotransferase, B-glucoronidase, Matrix metalloproteins, Cathepsin, Plasminogen activators

23
Q

What are some of the enzymes specific to bacteri-derived that are found in the GCF?

A

Hyaluronidase, Phospholipase-A, Phospholipase-C, Bacterial proteinases. (Collagenase is found in both)

24
Q

What are the three cellular elements found in GCF?

A
  1. Desquamated epithelial cells
  2. Bacteria Cells
  3. Leukocytes (neutrophils, monocytes, etc)
25
Q

Which electrolytes are found in GCF?

A

Potassium, Sodium, Magnesium, Fluoride, Calcium. When there is inflammation, there is a positive correlation of calcium and sodium, and Na/K ratio.

Periodontics I (7 decks)

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