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Oral Microbiology!!! > L4-Normal Oral Flora-Just the Bugs yo > Flashcards

L4-Normal Oral Flora-Just the Bugs yo Flashcards

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Biology 101 flashcards
1
Q

How many different species of bacteria are found in the oral cavity???

A

approx 800 different species!!

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2
Q

What are the three genus categories of Common Oral Gram-Positive Cocci?

A

StreptoCoccus, Pepto-Strepto-Coccus, & Entero-Coccus

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3
Q

What are the 4 “groups” (species) contained in the genus category of Strepto-Coccus (Gram + cocci)?

A

1.S. An-Gin-O-Sis 2.S. Mutans 3. S. Mi-tis 4.S. Saliva-rius

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4
Q

Out of the 4 “groups”(species) contained in the genus of Strepto-Coccus (Gram + cocci) some are ‘good’ and some are ‘bad’…Which ones are good, which ones are bad?

A

GOOD: 1. S. An-gin-o-sis group 2. S. Mitis 3.S. Saliva-Rius BAD:S. Mutans

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5
Q

What are the 8 things to know about the Genus Strepto-coccus?

A

1.Gram + 2. Coccus 3.’Viridans’/Green 4.alpha-hemolytic 5.Facultative 6.Extracellular Matrix 7.Saccharolytic 8. tolerates low pH

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6
Q

Which genus and species am I? Found in plaque, mucosa, and respiratory tract, a common cause of purulent (= pus-forming) disease.

A

Strepto-coccus An-Gin-O-Sis

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7
Q

What are the 5 things to know about S. Mutans? What is a secondary bug in this group to know?

A

S. Mutans: 1.Gram + 2.Coccus 3. mainly found in plaque 4. produces insoluble polysaccharides (super glue!!) 5. its a ‘BAD’ guy!……..secondary bug: S. So-Brin-Us

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8
Q

Of our Gram + Cocci–>StreptoCoccus…which two species are SWORN ENEMIES?!

A

S. Mutans (bad guy) and S. Mitis (good guy)

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9
Q

What are the 5 main things to know about S. mitis? What is a group/clan member?

A
  1. Gram + 2. Coccus 3. Its a pioneer species on the teeth 4. Subacute bacterial endocarditis 5. good guy….S. Sanguinis
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10
Q

What are 5 important items to know for S. Saliva-rius?

A

1.Gram + 2.Cocci 3.found on mucosal surface 4. found on tongue 5.good guy

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11
Q

What is the bacterium associated with nosocomal problems?

A

EnteroCoccus Fecalis

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12
Q

What is the bacterial you will find on a failed root canal?

A

EnteroCoccus Fecalis

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13
Q

What are the 6 things to know about E. Fecalis?

A

1.Gram + 2. Cocci 3.Opportunistic 4.Survives harsh environments 5.Nosocomal 6. Endo root canal failures

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14
Q

What are the 8 things to know about the Genus Actin-o-myces? What is a species of Actin-o-Myces he wants us to know?

A

1.Gram + 2. Rod 3.Major Plaque Flora 4.Gingivitis 5.ROOT Caries 6. ECM 7. Saccharolytic 8. tolerates low pH…..A. Israelii

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15
Q

What are the 4 main points about Lacobacillus Acidophilus?

A

1.Gram + 2.Rod 3.High sugar/cariogenic diet 4.DENTIN caries

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16
Q

What are the 3 oral Gram + Rod Genus’ we discussed?

A

1.Actinomyces 2.LactoBacillus 3.Rothia

17
Q

What is the most common Gram + found in/on this tissue: Enamel? Cementum? Dentin?

A

1.Enamel=S. Mutans….. 2. Cementum=A. Israelii…..3. Dentin= L. Acidophilus

18
Q

What are the 3 Gram - Cocci?

A
  1. Mor-ax-ella Cat-arr-hal-is 2.Neisseria 3. Veil-lo-nella Al-cal-esc-ens
19
Q

What is the bacterium that is more common at periodontal disease sites and aggressive periodontits in juveniles? What is its Gram stain and shape?

A

Aggre-gati-bacter Actin-o-myc-et-em-comit-ans…Gram - Rod

20
Q

What is the bacterium that is used as ‘scaffolding’ that other bacteria attach to? (gram stain and shape pleeezzz)

A

Fuso-bacterium Nucle-atum

21
Q

4 Gram-negative rods often suggested as causative agents of periodontal disease! Go! ALSO….What is their nickname???(hint-color)

A

1.(he only gave us Genus) Bacter-oi-des 2.Tannerella For-syth-en-sis 3.Por-phy-ro-mon-as Gingivalis 4.Prevo-tella intermedia…Nickname:’Black-Pigenting-Bacteriodes’

22
Q

Common in GI tract and found in GI infections. Also associated with periodontitis. Asaccharolytic….(shape and stain toooooo)

A

Bacteriodes (genus only)….Gram - rod

23
Q

What are the three bacteria (gram stain and shape) that for the RED COMPLEX??? What is the RED COMPLEX associated with?

A

1.Tanner-ella Forsythen-sis 2.Pro-phy-ro-monas Gingivalis 3. Trep-on-ema Denticola……ALL are Gram - Rods…………..Red Complex is associated with AGRESSIVE perio infections.

24
Q

What is the Gram - rod that is asaccharolytic and is not typically found in a healthy mouth?

A

Por-phy-rom-onas Gingivalis

25
Q

What is the ONLY black-pigmenting bacteriode (and therefore Gram - rod) that is Saccharolytic?

A

Pre-vo-tella Intermedia

26
Q

What is the only SPIROCHETE we talked about? What is it mainly associated with?

A

Trep-on-ema Denti-cola….Assoc. with Periodontitis

Oral Microbiology!!! (12 decks)

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