Exam 1 B

Question 1

Circular gingival fibers do what?

Answer 1

support & contour to free gingiva

Question 2

Dentogingival gingival fibers do what?

Answer 2

support of gingiva

Question 3

Dentoperiosteal gingival fibers do what?

Answer 3

anchors tooth to bone

Question 4

Alveologingival fibers do what?

Answer 4

attaches gingiva to alveolar bone

Question 5

Transseptal fibers do what?

Answer 5

keep teeth in alignment and protects bone

Question 6

What gingival fibers are not found on implants?

Answer 6

dentogingival
dentoperiosteal
transseptal

Question 7

Alveolar crest periodontal fibers do what?

Answer 7

resists lateral movement

Question 8

Horizontal periodontal fibers do what?

Answer 8

opposes lateral forces

Question 9

Oblique periodontal fibers do what?

Answer 9

absorbs occlusal forces (largest group)

Question 10

Apical periodontal fibers do what?

Answer 10

resists tipping of tooth

Question 11

Interradicular periodontal fibers do what?

Answer 11

resists forces of luxation (pulling out) and tipping

Question 12

What is biological width?

Answer 12

physiologic zone of gingival tissue coronal to the alveolar bone crest

Question 13

What is biological width made of?

Answer 13

epithelial attachment and the gingival connective tissue attachment (junctional epithelium + connective tissue)

Question 14

Biological width average numbers

Answer 14

2.04 mm (need 2-3 mm to have restorative work done)

Question 15

Calculate CAL with words?

Answer 15

Probing depth measurement + gingival margin level ( + if apical to CEJ or - if coronal to CEJ)

Question 16

Different types of gingivitis?

Answer 16

Plaque induced

non-plaque induced

Question 17

Plaque induced gingitivis from?

Answer 17

systemic factors, drugs, malnutrition

Question 18

Plaque induced systemic factors?

Answer 18

puberty, pregnancy, diabetes, leukemia

Question 19

Plaque induced gingivitis drugs
Anti-seizure/convulsants med?
Ca channel blockers?
Immunosuppressants?
and 1 other plaque induced gingivitis drug?

Answer 19

anti-seizure med = Dilantin
Ca channel blockers = Nifedipine
Immunosuppressants = Cyclosporin
Oral contraceptives

Question 20

Non-plaque induced gingivitis reasons?

Answer 20

bacteria
viruses
fungal infections
trauma
foreign body reactions (popcorn kernal, braces), genetic

Question 21

What type of category does pregnancy and gingivitis fall into?

Answer 21

plaque induced gingivitis

Question 22

What does epidemiology risk mean?

Answer 22

likelihood a person will get a disease

Question 23

What does epidemiology risk factor mean?

Answer 23

factor that puts them at a greater risk

Question 24

What MO’s cause Chronic PD?

Answer 24

Porphyromonas gingivalis
Tannerella forsythia
Treponema denticola
Aggregatibacter actinomycetemcomintans

Question 25

What MO's cause Aggressive PD?

Answer 25

Aggregatibacter actinomycetemcomintans | Porphyromonas gingivalis

Question 26

What MO's cause Necrotizing PD?

Answer 26

Prevotella intermedia Spirochetes (invade CT) Fusiform bacilli

Question 27

Describe tooth associated subgingival plaque

Answer 27

``` densely adherent G+ rods, cocci facultative aerobes/anaerobes remove by SRP (mechanical removal) less virulent ```

Question 28

Describe tissue associated subgingival plaque

Answer 28

``` loosely adherent G- motile anaerobes spirochetes remove surgically more virulent ```

Question 29

Microbial shift: Healthy to Gingivitis to Periodontitis?

Answer 29

G+ to G- Cocci to Rods to Spirochetes Non-motile to motile Facultative to obligate anaerobes

Question 30

What is calculus?

Answer 30

calcified dental plaque

Question 31

What is calculus' role?

Answer 31

increases surface area, density where plaque can accumulate and bacteria can concentrate

Question 32

Is calculus a primary or secondary role in PD?

Answer 32

secondary

Question 33

Factors that can cause calculus?

Answer 33

anatomical abnormalities - fluted root surfaces, enamel pearls physical irritants - amalgam overhangs, restoration contours habits - mouth breathing, incorrect tooth brushing systemic disease

Question 34

Calculus attachments

Answer 34

pellicle penetrate cementum lock into surface irregularities into depressions/concavities in roots (PREMOLAR roots)

Question 35

True/False Furcations and mutirooted teeth more prone to perio disease

Answer 35

True

Question 36

What cells first to invade into the pocket?

Answer 36

PMNs from leaky ulcerative gingival epithelium

Question 37

What do PMNs do?

Answer 37

phagocytize crap

Question 38

What's second into pockets?

Answer 38

Mast cells

Question 39

What do Mast cells do in pocket?

Answer 39

release amines to increase vascular permeability

Question 40

What's 3rd into pockets?

Answer 40

macrophage

Question 41

What does macrophage do in pockets?

Answer 41

present antigen to T-cells