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Quizam 3 Oral Bio > The Periodontium I > Flashcards

The Periodontium I Flashcards

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Biology 101 flashcards
1
Q

The periodontium is composed of what 3 things?

A
  1. Alveolar Process
  2. Cementum
  3. PDL
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2
Q

How does Alveolar Process formed

A

intremembranous ossification

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3
Q

when does the alveolar process begin to form?

A

8 weeks in utero

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4
Q

what influences the alveolar process?

A

dental follicle

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5
Q

What type of bone is the Alveolar Bone Proper?

A

COMPACT bone

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6
Q

What type of bone is the supporting alveolar bone?

A

both compact and trabecular bone

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7
Q

3 components of the Alveolar bone Proper

A
  1. Cribriform plate
  2. lamina dura
  3. bundle bone
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8
Q

Inner Alveolar bone proper

A

is primarly woven bone

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9
Q

WHen is bone marrow yellow?

A

in aged people (red in young)

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10
Q

what is the interradicular septum?

A

bony setptum between roots of a single tooth

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11
Q

4 functions of the alveolar bone

A
  1. protection for a tooth
  2. attachment for PDL
  3. Support roots
  4. distribute loading of the tooth
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12
Q

How do the PDL’s start off?

A

unorganized and from fragments of HERS

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13
Q

WHen do PDL fibers change orentation?

A

When the tooth erupts

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14
Q

Which collagen is found in PDL?

A

1,3,12

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15
Q

What is the main elastic fiber of the PDL?

A

Oxytalan

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16
Q

How much water is in the PDL?

A

70%

17
Q

which teeth have more penetrating arterioles?

A

posterior mandible

18
Q

most nerve endings are found at the tooth apex which tooth is the exepction? and where is it?

A

Upper incisors, mainly the Coronal/labial portion of the PDL

19
Q

what are the 4 types of nerve endings found in pdl?

A

free nerve ending
Ruffinis Corpuscle
Coiled
Spindle

20
Q

What are the 5 types of PDL?

A 
Alveolar Crest
Horizontal
Oblique
Apical
Interradicular (multiroot only)
21
Q

Is the gingival ligament associated with the PDL?

A

no

22
Q

What are the 5 groups of the Gingival ligaments?

A 
Dentogingival
Alveologingival
Circular
Dentoperiosteal
Transseptal fibers

Quizam 3 Oral Bio (7 decks)

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