Perio- Ch 1 Periodontium Questions

Front 1

What 4 structures make up the periodontium?

Back 1

gingiva, cementum, PDL, alveolar bone

Front 2

Gingiva can be divided into what 4 categories?

Back 2

free, sulcular, interdental, attached

Front 3

Define periodontium

Back 3

functional system of tissues that surrounds teeth and attaches them to the bone

Front 4

what types of tissue make up the gingiva?

Back 4

a thin layer of epithelium and an underlying core of connective tissue

Front 5

what is the function of the gingiva?

Back 5

holds tissue against teeth during mastication

Front 6

The attached gingiva is surrounded by what 2 boundaries?

Back 6

free gingival groove and mucogingival junction

Front 7

What does the free gingival groove seperate?

Back 7

free and attached gingiva

Front 8

What type of gingiva surrounds the tooth like a turtle neck?

Back 8

free gingiva

Front 9

Which type of gingiva is pulled away with the perio probe?

Back 9

free gingiva

Front 10

Which tissue is located between the free gingiva and the alveolar mucosa?

Back 10

attached gingiva

Front 11

Where is the attached gingiva widest?

Back 11

incisor and molar regions

Front 12

Where is the attached gingiva narrowest?

Back 12

premolar regions

Front 13

Why is lingual attached gingiva of upper anteriors not measured?

Back 13

because it is continuous with the palatal mucosa

Front 14

What causes stippling of attached gingiva?

Back 14

connective tissue fibers that attach gingival tissue to the cementum and bone (rete pegs)

Front 15

What is the function of the attached gingiva?

Back 15

prevents free gingiva fro being pulled away from tooth when tension is applied to alveolar mucosa, allows gingival tissue to withstand mechanical forces

Front 16

Define col

Back 16

valley-like depression in the interdntal gingiva that lies directly apical the the contact area

Front 17

In health, how deep is a gingival sulcus?

Back 17

1-3 mm

Front 18

what forms the base of the sulcus?

Back 18

junctional epithelium

Front 19

What makes cementum different from bone?

Back 19

cementum is more resistant to resportion

Front 20

What characteristics of bone and cementum allow ortho to be possible?

Back 20

high cementum resistance to resorption and low alveolar bone resistance to resportion

Front 21

Does cementum have its own blood or nutrient supply?

Back 21

no, cementum gets nutrients from the PDL

Front 22

What are the functions of root cementum?

Back 22

Acnhors the PDL to the tooth

Protects dentin

seals dentinal tubules

Forms on the apical area to compensate for occlusal wear

Front 23

Define PDL

Back 23

soft CT that covers the root of the tooth and attaches it to the bone of the tooth socket

Front 24

How does PDL grow?

Back 24

from each anchor point (Sharpeys fibers) and connects in the center. One end from cementum on from alveolar process

Front 25

Describe the support function of the PDL

Back 25

suspends and maintains the tooth in the socket

Front 26

Describe the sensory function of the PDL

Back 26

provides pressure and pain sensory info to tooth

Front 27

Describe the nutritive function of the PDL

Back 27

provides nutrients to cementum and bone

Front 28

Describe the formative function of the PDL

Back 28

builds and maintians the cementum and alveolar bone of the tooth socket

Front 29

Describe the resorptive function of the PDL

Back 29

remodels the alveolar bone in response to pressure

Front 30

Existence of the alveolar process is depentent on the presence of teeth because....

Back 30

if extracted, alveolar bone resorbs

if no teeth develop, no alveolar bone develops

Front 31

What are the layers of alveolar bone?

Back 31

Alveolar bone proper (cribiform plate)

cortical bone

cancellous bone

periosteum

Front 32

Which bone are the ends of the PDL fibers embedded?

Back 32

alveolar bone proper (cribiform plate)

Front 33

What surrounds the alveolar bone proper and gives support to the socket?

Back 33

cortical bone

cancellous bone also provides support

Front 34

Does cortical bone show up on radiographs?

Back 34

no, but cancellous bone does

Front 35

What is between the alveolar bone proper and the cortical bone?

Back 35

cancellous bone

this also provides support for the a.b.p

Front 36

Overview of V2

Back 36

sensory to skin, face, head, teeth, oral and nasal cavities

Front 37

Overview of V3

Back 37

motor function for chewing

Front 38

Which nerves innervate the maxillary gingiva?

Back 38

ASA, MSA, PSA, infraorbital, greater palatine, nasopalatine

Front 39

Which nerves innervate the mandibular gingiva?

Back 39

mental, buccal, sublingual branch of the lingual nerve

Front 40

Which nerves innervate the teeth and PDL of maxillary?

Back 40

ASA, MSA, PSA

Front 41

which nerves innervate the teeth and PDL of mandible?

Back 41

IA

Front 42

What vessels provide blood supply to the maxillary gingiva, PDL, and alveolar bone?

Back 42

ASA, PSA, IA, greater palatine arteries

Front 43

What vessels provide blood supply to the mandibular gingiva, PDL, and alveolar bone?

Back 43

Branches of IA artety, buccal, facial, mental, sublingual arteries

Front 44

What major artery provides blood supply to the teeth and periodontal tissues of the maxilla?

Back 44

superior alveolar arteries

Front 45

What major artery provides blood supply to the teeth and periodontal tissues of the mandible?

Back 45

IA arteries

Front 46

Which nodes drain most perio tissue?

Back 46

submandibular nodes

Front 47

which nodes drain palatal gingiva of the max?

Back 47

deep cervical nodes

Front 48

which nodes drain the gingiva and region around mand incisors?

Back 48

submental nodes

Front 49

which nodes drain the 3rd molar region?

Back 49

jululodigastric nodes

Front 50

which artery enters the tooth socket?

Back 50

intraseptal artery