Exam 1; Applied Anatomy of the Periodontium Flashcards Preview

AU14 Periodontology > Exam 1; Applied Anatomy of the Periodontium > Flashcards

Flashcards in Exam 1; Applied Anatomy of the Periodontium Deck (33):
1

In health, the probe penetrates to which landmark

the free gingival groove

2

In disease, the probe penetrates to which landmark

past junctional epithelium into connective tissue

3

What is a pseudo pocket?

The pushing down of the soft inflamed gingiva; the JE is still at the CEJ (no gingival stop)

4

Diagnosis of periodontitis is based upon what

attachment loss, not probe depths

5

Periodontitis occurs when

when the junctional epithelium migrates apically down the root surface

6

This is necessary for pocket formation

viable junctional epithelium

7

What are the landmarks to measure pocket depth

from the CEJ to JE/pocket depth

8

What three things shape the interdental papilla

the contact relationships between adjacent teeth
width of approximate tooth surfaces
course of CEJ

9

This is a concavity in the interdental papilla seen in the contact areas of premolar/molar region

col

10

What type of tissue makes up the col

non-keratinized epithelium (similar to JE)

11

The position and dimensions of the contact area determine what

probe angulations in posterior teeth

12

A width of keratinized tissue less that what predisposes to recession

2mm

13

A narrow gingiva cannot protect from what

friction; cannot buffer against muscle pull

14

A narrow gingiva facilities sub gingival plaque formation via which three mechanisms

mobile tissue causes pocket to open
facilitates food impaction
impedes oral hygiene

15

True or False
Narrow gingiva has the same resistance to attachment loss as wide gingiva

True

16

What are four characteristics of a thin phenotype

increases recession
more vulnerable to trauma
more inflammation
less favorable treatment outcome

17

When would you recommend gingival grafts

when recession causes symptoms; caries, esthetic concerns, progressive recession, sensitivity
subgingival restoration margins on thin biotype
pre-orthodontic therapy

18

Is tissue differentiation in the adult organism influenced by environmental or genetic factors

genetically determined

19

This determines epithelial characteristics

clinical translation

20

This is the main grafting procedure now

connective tissue grafts

21

This is seen in necrotizing ulcerative periodontitis

necrosis of the junctional epithelium; JE cells die = no pocketing; exposed bone

22

What are the two parts of the soft tissue attachment to tooth

fibrous tissue
JE

23

What is the biologic width of connective tissue attachment and epithelial attachment

CT = 1.06-1.08 mm
epithelial = 1.4 mm

24

What is the average biologic width of the attachment apparatus

3 mm

25

Distance from the CEJ to the alveolar crest is what

3mm

26

The distance from crown margins to alveolar crest has to be what distance

3mm

27

If the required 3mm distance is not there, what must be done

crown lengthening

28

What two lineages of cells form the alveolar bone

cells from the dental follicle
cells independent of tooth development

29

When does bone remodel

in response to forces and tooth movement

30

What are the steps of wound dealing after an extraction

clot formation
wound cleansing via immune cells
new vasculature
provisional connective tissue
immature bone forms
bundle bone is resorbed
wound filled with woven bone
bone maturation

31

Why is socket preservation important

for preserving bone morphology

32

What is the principle behind guided tissue regeneration

epithelium grows faster than bone or connective tissue

33

Epithelial exclusion will allow what

growth of cells