Oral Microbiology Flashcards

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1
Q

impetigo

A

honey crust
strep pyogenes
staph aureus

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2
Q

“strep throat”

A

group A beta hemolytic strptococci, influenze, epstein barr
majority is viral
Signs and sympotms: sorat rhoat, dysphagia, tonsillar hyperplasia, fevver (bacteria), heaadache
sequalea: scarlet fever, rheumatic fever (rf goes to rheumatic heart diesease, acute glomerulonephritis)

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3
Q

scarlet fever

A

disseminated group A beta hemolytic streptococcal
first 2 days is white strawberry tongue
4-5 days you get red strawberry tongue

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4
Q

diptheria

A

throat closing up

cornebacterium diphteriae

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5
Q

syphilis

A

treponema pallidum
primary syphillis- chancre at site of innoculation (3-90 days) painless ulceration
tertiary- Gumma- scattered foci of granulomatous inflammation- intraoral on palate or tongue

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6
Q

gonorrhea

A

neisseria gonorrhoeae
sex
purulent discharge, dysuria (painful peeing)

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7
Q

TB

A

mycobacterium tuberculosis

acid fast bacillus

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8
Q

leprosy

A

chronic- mycobacterium leprae
low infectivity- brazil, india idonesia. myanmar, nigeria
luisiana and texas
armadillo is host

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9
Q

actinomycosis

A

bactera- actonomyces israelii
tonsilar crypts, plaque. carious dentin
suppurative reaction may discahrge yellow material, colonies of bacteria “sulfer granules”

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10
Q

cat scratch disease

A

bartonella henselae
lymph nodes
most common cause of chronic regional lumphadenopathy in children
from cats

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11
Q

candidiasis

A

canddida albicans
dimorphic- yeast form (innocuous) and hyphal (invasion of host tissue)
most common oral fungus

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12
Q

aspergillosis

A

1)non invasive affects normal host
allergic reaction- mass of fungal hyphae (aspergilloma)
2invasive- localized, extenive involvement in immunocomprimised pt

a. fumigatus (90%) and a. flavus

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13
Q

human herpes virus

A
dna virus
HSV1- saliva or active perioral lesions
hsv2- sexual contact
younger= gingivostomatitis - primary
18+ typicalls pharyngotonsillitis
herpetic whitlow= thumb or fingers
herpes gladiatorum or scrumpoz= wrestlers or rugby players
herpes barbae= bearded region, spread by shaving
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14
Q

VZV

A

chickenpox-shignles

spread through airdroplets or contact with active lesion

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15
Q

HIV/AIDS

A

1981 is first case
sexual contact, blood, or mother to fetus
targets CD4+ helper t lymphocyte

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16
Q

oral manifestation strongly associated with HIV

A

candidiasis, hairy leukoplakia, karposis sarcoma, non-hodgkins lymphoma, periodontal disease