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3 Microbiology > REVISION - OVERVIEW > Flashcards

REVISION - OVERVIEW Flashcards

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1
Q

put the following bacteria in order form supragingival to subgingival
Actinomyces
spirochaetes
strep.mutans
fusobacteri
strep. sanguinis and strep. oralis

A

Strep. mutans
Strep. sanguinis and Strep. oralis
Actinomyces
Fusobacterium
Spirochaetes

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2
Q

what gram +ve bacteria are linked to periodontal abscess?

A

Gram +ve
Streptococci - anginosus group

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3
Q

what gram -ve bacteria are linked to periodontal abscess?

A

Gram -ve
GNABs : Porphyromonas, prevotella
Fusobacteria nucleatum

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4
Q

what gram +ve bacteria are linked to endodontic infection?

A

Gram +ve
Streptococcus group
Enterococcus faecalis

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5
Q

what gram -ve bacteria are linked to endodontic infection?

A

Gram -ve
Fusobacterium nucleatum
Tannerella forsythia

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6
Q

what bacteria are linked to peri-implantitis?
are they gram +ve or -ve?

A

Staphylococcus aureus
Staphylococcus epidermidis
gram +ve

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7
Q

what bacteria are linked to chronic perio lesions?
are they gram +ve or -ve?

A

Gram -ve
Treponema denticola (oral spirochaete)

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8
Q

what bacteria is characterised by grannular pus? are they gram +ve or -ve

A

actinomyces
gram +ve
(actnomycosis)

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9
Q

what bacteria is linked to gingivitis? is it gram +ve or -ve?

A

Tannerella forsythia (-)

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10
Q

what bacteria is linked to chronic periodontitis? are they gram +ve or -ve

A

Spirochaetes (-)
campylobacter (-)
Porphyromonas gingivalis (-)
Fusobacterium nucleatum (-)

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11
Q

what bacteria is linked to rapidly progressing periodontitis? are they gram -ve or +ve?

A

Prevotella intermedia (-)
Porphyromonas gingivalis (-)
Fusobacterium nucleatum (-)

most important
Aggregatibacter actinomycetemcomitans (-)

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12
Q

what bacteria are in the red complex? are they gram -ve or +ve?

A

Porphyromonas gingivalis (black pigmented) (-)

Tannerella forsythia (black pigmented) (-)

Treponema denticola (-)

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13
Q

what is the red complex associated with?

A

Active pockets of periodontitis

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14
Q

what bacteria are in the orange complex? are they gram +ve or -ve

A

Fusobacteria (-)

Prevotella nigriscins (black pigmented) (-)

Prevotella intermedia (black pigmented) (-)

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15
Q

what is the orange complex associated with?

A

increase plaque in periodontitis

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16
Q

what bacteria is associated with recurrent periodontal disease? chronic

A

Campylobacter rectus

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17
Q

what bacteria is linked to ulcerative gingivitis? is it gram +ve or -ve

A

Gram -ve
Treponema vincetii

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18
Q

what bacteria is the biggest contributor to caries? is it gram +ve or -ve

A

Strep. mutans
gram +Ve

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19
Q

name the bacteria linked to caries other than strep mutans. are they gram +ve or -ve?

A

Strep. Sanguinis

Lactobacilli - dentine caries

Actinomyces - root surface caries

Rothia denticariosa

all gram +ve

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20
Q

what bacteria can prevent caries?

A

Veillonella - uses lactic acid -> prevents lowering pH

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21
Q

what bacteria are associated with ludwig’s angina? are they gram +ve or -ve?

A

B-haemolytic oral streptococci

Staphylococci

both gram +ve

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22
Q

what bacteria is linked to the skin infections: Impetigo, cellulitis, acute necrotising fasciitis? gram +ve or -ve?

A

Gram +ve Strep. Pyogenes

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23
Q

what bacteria is linked to the skin infections: cutaneous, soft tissue and pulmonary disease and acute bacterial parotitis? gram +ve or -ve

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A

Gram +ve Staph. Aureus

24
Q

what bacteria is linked to the autoimmune diseases Rheumatic fever (heart) and glomerulonephritis (kidneys)? gram +ve or -ve?

Study These Flashcards
A

Gram +ve Strep. Pyogenes

25
what bacteria are linked to upper respiratory tract infections? gram +ve or -ve?
Bordetella pertussis (-), cornybacterium diptheria (+), haemophilus influenza (-)
26
what bacteria is linked to whooping cough?
Gram -ve Bordetella Pertusis
27
what bacteria is linked to diptheria? gram +ve or -ve?
Gram +ve Cornybacterium Diptheria
28
what bacteria is linked to Influenza/septicaemia/meningitis? gram +ve or -ve?
Gram -ve Haemophilus influenza
29
what bacteria is linked lower respiratory tract infections? gram +ve or -ve?
Haemophilus influenza -ve Streptococcus pneumonia +ve Legionella pneumophilia -ve Myobacterium tuberculosis
30
where is staph.aureus located?
In nose, perineum and oral environment
31
is staph.aureus gram +ve or -ve?
gram +ve
32
what unique thing can Staph.aureus do?
coagulate blood plasma
33
what does staph.aureus linked to?
Skin infections: cutaneous, soft tissue and pulmonary disease and Acute bacterial parotitis
34
is staph.epidermis gram +ve or -ve?
gram +ve
35
where is staph.epidermis located?
on everyones skin
36
what is staph.epidermis linked to?
associated with foreign devices
37
whos at risk from staph.epidermis?
immunocompromised
38
there are 3 groups of streptococci, what are they?
A-haemolysis B-haemolysis Y-haemolysis
39
what streptococci are A-haemolytic?
most oral streptococci
40
what streptococci are B-haemolytic?
strep.pyogenes
41
where is strep.pyogenes located?
at the back of the throat
42
how is strep.pyogenes identified?
by presence of M protein
43
what is strep.pyogenes linked to?
skin infections upper respiratory tract infections autoimmune disease
44
what streptococci are Y-heamolytic?
enterococcus faecalis
45
what is enterococcus faecalis linked to?
healthy individuals it is a commensal But linked to endodontic infections
46
what is strep.mutans linked to?
caries
47
what are the virulence factors for strep.mutans?
acidogenic aciduric extracellular polysaccharide
48
why is is useful that strep.mutans take up a wide range of carbohydrates?
as xylotol is taken up but once metabolised is toxic and kills the bacteria
49
how do strep.mutans attach to the teeth?
protein antigens (attachment to pellicle - > potential vaccine) glucotransferase (produce glucans) glucan binding proteins (aggregation)
50
what are red complex bacteria associated with?
active pockets of periodontitis
51
what bacteria are in the red complex?
prophyromonas gingivalis tanerella forsythia treponema denticola
52
other than periodontitis what else is porphyromonas gingivalis linked to systemically?
alzheimer's disease
53
are red complex bacteria B-haemolytic?
yes
54
what are orange complex bacteria associated with?
increased plaque in periodontitis
55
what bacteria are orange complex?
fusobacterium prevotella nigrescins prevotella intermedia
56
what is fusobacterium associated with systemically?
colorectal cancer
57
name the black pigmented bacteria and their complex
porphyromonas gingivalis (red) tanerella forsythia (red) prevotella (orange)

3 Microbiology (14 decks)

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