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Perio > Module 2 > Flashcards

Module 2 Flashcards

1
Q

____________ surrounding roots

A

specialized connective tissue

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2
Q

what connects the tooth/cementum with the bone

A

PDL

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3
Q

What is the suspensory cushion between the tooth and bone?

A

PDL

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4
Q

how many mm of space between bone and tooth?

A

.5 to.25 mm

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5
Q

What is the connective tissue complex primarily filled with

A

fiber bundles

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6
Q

How many fiber bundles are in each square 1mm of cementum surface

A

28,000

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7
Q

What are the supportive functions of the PDL?

A

suspends/cushions the tooth in the socket

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8
Q

What are the sensory functions of the PDL?

A

PDL suppliked with sensory nerve fibers. Transmits pressure and pain

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9
Q

What are the nutritive functions of the PDL?

A

PDL helps supply nutrients to the cementum and bone

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10
Q

What are the formative and remodeling functions of the PDL?

A

ongoing remodeling of collagen and bone and cementum deposition

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11
Q

Fiber bundles have ___________ orientations and insertions and surround the tooth

A

specific

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12
Q

What transmits occlusal forces to bone

A

PDL

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13
Q

The PDL _________ occlusal forces

A

resists

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14
Q

The PDL does not protect vessels and nerves T/F

A

False

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15
Q

What are the 5 principle PDL fiber groups?

A

Alveolar Crest, Horizontal, Oblique, Apical, Interradicular

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16
Q

What are interradicualr fibers for?

A

mulitrooted teeth

17
Q

WHat fiber holds the tooth in the socket and transmits occlual force

A

Oblique

18
Q

what is the 6th principal fiber group we should know?

A

transseptal

19
Q

What are sharpeys fibers?

A

the ends of the PDL fiber bundles that are embedded in the cementum on one side and bone

20
Q

Do the principal fiber groups have the abliily to reattach?

A

yes, if they are not destroyed by diesease

21
Q

What are the Components of the PDL?

A

cellular, extracellular

22
Q

Whare the components of the celluar part of the PDL?

A
  • defense cells (macrophage, neutrophils lymphocytes

- Fibroblasts, cementoblasts, osteoblasts, rests of malassez

23
Q

What are the Extracellular components of the PDL?

A
  • cells associated with neurovascular elements
  • FIbers
  • ground substance
24
Q

What is the ground substance of the extracelluar component of the PDL?

A

fills spaces between fiber and cells

25
Q

Where are the cemetoblasts located?

A

loacted nearer to the cemental surface

26
Q

Where are the fibroblasts found?

A

throughout the PDL

27
Q

What are fibroblasts needed for to produce?

A

procollagen that is needed for making collagen fiber bundles that make up the PDL

28
Q

Do fibroblasts assist in the breakdown of collagen?

A

Yes

29
Q

Where are osteoblasts located?

A

nearer to the alveolar surface

Perio (11 decks)

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