The Periodontium I Flashcards Preview

Quizam 3 Oral Bio > The Periodontium I > Flashcards

Flashcards in The Periodontium I Deck (22):
1

The periodontium is composed of what 3 things?

1. Alveolar Process
2. Cementum
3. PDL

2

How does Alveolar Process formed

intremembranous ossification

3

when does the alveolar process begin to form?

8 weeks in utero

4

what influences the alveolar process?

dental follicle

5

What type of bone is the Alveolar Bone Proper?

COMPACT bone

6

What type of bone is the supporting alveolar bone?

both compact and trabecular bone

7

3 components of the Alveolar bone Proper

1. Cribriform plate
2. lamina dura
3. bundle bone

8

Inner Alveolar bone proper

is primarly woven bone

9

WHen is bone marrow yellow?

in aged people (red in young)

10

what is the interradicular septum?

bony setptum between roots of a single tooth

11

4 functions of the alveolar bone

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

12

How do the PDL's start off?

unorganized and from fragments of HERS

13

WHen do PDL fibers change orentation?

When the tooth erupts

14

Which collagen is found in PDL?

1,3,12

15

What is the main elastic fiber of the PDL?

Oxytalan

16

How much water is in the PDL?

70%

17

which teeth have more penetrating arterioles?

posterior mandible

18

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

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

19

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

free nerve ending
Ruffinis Corpuscle
Coiled
Spindle

20

What are the 5 types of PDL?

Alveolar Crest
Horizontal
Oblique
Apical
Interradicular (multiroot only)

21

Is the gingival ligament associated with the PDL?

no

22

What are the 5 groups of the Gingival ligaments?

Dentogingival
Alveologingival
Circular
Dentoperiosteal
Transseptal fibers