Etiology

Question 1

LPS

Answer 1

liopolysaccharide - virulence factor associated with gram negative bacteria
lps is an integral part of the outer membrane, when released it can cause tissue damage

Question 2

pemphigus

Answer 2

antibodies against connections between epidermal cells (desomsomes)

Question 3

pemphigoid

Answer 3

antibodies against hemidesmosomes (attach epithelial cells to basement membrane)

Question 4

peptostreptococcus micros
gram?
aerobic/anaerobic?

Answer 4

gram positive

anaerobic

Question 5

most common isolate from subgingival samples

Answer 5

fusobacterium nucleatum

Question 6

what bacteria can invade epithelial cells?

Answer 6

tanerella forsythia, porphyromanas gingivalis, AA

Question 7

what bacteria can secrete LPS?

Answer 7

Porphyromanas gingivalis

Question 8

3 most important bacteria in LAP

Answer 8

AA, porphyromonas gingivalis, prevotella intermedia

Question 9

pregnancy assoc gingivitis

Answer 9

prevotella intermedia

Question 10

ANUG bacteria

Answer 10

acute necrotizing ulcerative gingivitis

spirochetes and prevotella intermedia

Question 11

red complex

Answer 11

tanerella forsynthus - gram (-) , non-motile
porphyromonas gingivalis - gram (-) , non-motile
treponema denticola - motile

Question 12

desquamated epithelial cells

Answer 12

comes off in scales or flakes

Question 13

associated with ulcerative lessions

Answer 13

pemphigus, pemphigoid, lupus erythematosis

• theses are non plaque assoc. gingival diseases
• can get fistulus tracts

Question 14

leukotoxin from AA is an example of

Answer 14

exotoxin secreted by bacteria

Question 15

what serotype of AA is most pathogenic

Answer 15

serotype B

Question 16

1 risk factor of periodontal disease

Answer 16

history of periodontal disease

Question 17

most damage to periodontium is caused by

Answer 17

host response

Question 18

Beneficial Species

gram?

Answer 18

"all students should come victims"
a- actinomyces
s- Strep mitis
s- Strep Sanguis
c- capnocytophaga species
v- c. parvula

gram +

Question 19

bacteria able to grow at elevated ph

Answer 19

porphyromonas gingivalis