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Perio > Normal Periodontium > Flashcards

Normal Periodontium Flashcards

1
Q

masticatory mucosa consists of what tissue? What land marks are mast. mucosa

A

Keratinized strat. squamos epithelium; Dorsum of tongue, hard palate, attached gingiva

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2
Q

What are Rete pegs?

A

Downward thickening of epidermis between the dermal papillae

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3
Q

Reticular fibers in the lamina reticularis are composed of what?

A

Collagen III

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4
Q

Melanocytes have what function in the periodontium

A

Melanin, give color

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5
Q

Langerhans cells have what function

A

APCs with lymphocytes

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6
Q

What are the 4 part of the periodontium

A

Gingiva, Cementum, Periodontal Ligament, Alveolar supporting bone

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7
Q

What are 3 divisions of gingiva

A

Attached, Unattached (marginal, free), Interdental

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8
Q

When the periodontal ligament space disappears, what has happened?

A

The tooth has ankylosed with the alveolar supporting bone

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9
Q

Normal tooth root is usually in what range of length?

A

12 - 14 mm in length

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10
Q

Functions of the periodontium include:

A

Tooth support
Shock absorption
Sensory reception
Nutrition supply (blood vessels providing essential nutrients for vitality of PDL)

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11
Q

Gingival epithelium consists of what elements?

A

keratinocytes, desmosomes, tonofilaments, basal lamina, hemidesmosomes

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12
Q

Anatomical areas of the gingiva include what?

A

Free gingiva
Gingival sulcus
Interdental gingiva (papillae)
Attached gingiva

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13
Q

Gingival sulcus implies health, what is the term for disease?

A

Gingival pockets

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14
Q

Which site of the gingiva will be the earliest detection site for inflammation?

A

Free/marginal gingiva

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15
Q

Keratinized tissue when dried will have what sort of appearance compared to non keratinized?

A

Keratinized tissue is less red

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16
Q

The base of the gingival sulcus is formed by what tissue?

A

Coronal aspect of junctional epithelium

17
Q

Sulcular epithelium has what histological features

A

Non keratinized, semipermeable

18
Q

Junctional epithelium on a normal healthy tooth is found where?

A

Enamel

19
Q

What are some functions of the gingival crevicular fluid? (fluid coming from CT, thru basement membrane, into sulcus)

A

cleanses the gingival sulcus
aid in adhesion of the epithelium to the tooth
antimicrobial properties
exerts antibody activity in defense of the gingival

Perio (1 decks)

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