Oral abscesses

Question 1

is supragingival bacteria mainly gram +ve or -ve?

Answer 1

+ve

Question 2

is subgingival bacteria mainly gram +ve or -ve?

Answer 2

-ve

Question 3

what is the most common gram +ve bacteria?

Answer 3

S.anginosus

Question 4

what are the most common gram -ve bacteria?

Answer 4

prevotella
fusobacterium nucleatum

Question 5

what is a periodontal abscess?

Answer 5

infection of the periodontium (tissure supporting the teeth) it can be acute or chronic

Question 6

what bacteria is most commonly found in a periodontal abscess?

Answer 6

GNABs: prevotella
s.anginosus
fusobacterium nucleatum

Question 7

what is dry socket?

Answer 7

post extraction localised osteomyelitis (inflammation of bone/bone marrow)

Question 8

what is peri-implantitis?

Answer 8

inflammation surrounding dental implants

Question 9

what bacteria are most common in peri-implantitis?

Answer 9

S.aureus, S.epidermidis

Question 10

what is Ludwig’s angina?

Answer 10

spread of tissue inflammation into the submandibular space so it begins to swell

Question 11

what bacteria are most common in Ludwig’s angina?

Answer 11

B-hemolytic oral streptococci, staphylococci

Question 12

where are the bacteria actinomyces found?

Answer 12

supra and subgingival plaque

Question 13

what is a characteristic trait of actinomycosis?

Answer 13

granular pus

Question 14

are actinomyces aerobic or anaerobic?

Answer 14

anaerobic

Question 15

name 2 common types of oral spirochaetes

Answer 15

treponema denticola
treponema vincentii

Question 16

where is the oral spirochaete treponema denticola found

Answer 16

in chronic perio lesions

Question 17

where is treponema vincentii found?

Answer 17

Acute necrotising ulcerative gingivitis / Vincent’s disease