Term
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Definition
| species of bacteria not harmful |
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Term
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Definition
| capability of causing disease in humans |
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Term
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Definition
| replication happens quickly |
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Term
| characteristics of gram + |
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Definition
thick, single cell wall
stains purple |
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Term
| characteristics of gram - |
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Definition
double cell walls
does not stain
plays a role in tissue destruction (anaerobic) |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| cannot tolerate free oxygen |
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Term
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Definition
| can exist with or without oxygen |
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Term
non motile
facultative
cocci and rods |
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Definition
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Term
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Definition
T-forcythes (gram -)
A A (gram -)
P. Ginivalis (gram -)
fusobacterium nucleatum (gram -)
all are non motile |
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Term
| what is the purpose of fluid channels |
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Definition
| move nutrients and bacterial products throughout biofilm structure |
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Term
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Definition
| communication between bacterial colonies |
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Term
| plaque to bone is never less than ___mm. and never greater than_____mm. |
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Definition
never less than .5mm
nor more than 2.7mm |
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Term
| what are bacterial virulence factors? |
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Definition
invasion of body tissue
endotoxin peptides
enzymes
exotoxin, leukotoxins |
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Term
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Definition
| a short chain of amino acids found in the cell membrane that controls the transport of molecules out of the cells |
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Term
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Definition
| lock onto peptides and allert immune system of invasion |
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Term
| in health what are the % of gram + and gram -? |
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Definition
75% gram + in health
25%gram - |
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Term
|
Definition
attachment
growth
detachment |
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Term
| what is the form of bacteria that shows up after 6 hours when supragingival plaque is formed? |
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Definition
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Term
| what are the 1st layer of nonpathogenic gram + that are normal flora |
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Definition
| S. mitis, s. oralis, and A. vicosus |
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Term
|
Definition
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Term
| what are the enzymes in mouth |
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Definition
protease, collagenase, and elastase
help with invasion of tissues
increase permeability,breakdown collagen, promote apical migration, widen intercellular spaces, diminish ability of immunoglobins to defend host. |
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Term
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Definition
proteins released from the bacterial cell that cause tissue damage.
IE) leukotoxin is released from pathogen AA to destroy leukocytes.!!!!! |
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Term
|
Definition
| inactive in order to survive adverse conditions |
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Term
| how to control plaque biofilm |
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Definition
physical disruption
toothbrushing and flossing
instrumentation |
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Term
AA
motile or nonmotile?
gram + or -?
what does it look like?
what tissue is it found in? |
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Definition
Actinobacillus actinomycetemocomtians
GRAM -
non motile
small short rods, straight or curved with round ends
in connective tissue!!!! |
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Term
| AA is associated with what types of perio? |
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Definition
| aggressive perio and generalized perio |
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Term
| what is the lipopolysachharide / endotoxin formed by AA that forms pores in pmns (which die due to osmotic pressure)? |
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Definition
| leukotoxins form pores in pmns. |
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Term
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Definition
| found in soldiers, bad diet, bad Oral hygiene |
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Term
|
Definition
a gram - nonmotile pathogen
round ended rods
associated with NUP, pregnancy gingivitis, and perio abcess.
less virulent that P. gingivalis |
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Term
fusobacterium nucleatum a gram - nonmotile pathogen
tell me about it... |
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Definition
cigar shaped bacillus with pointed ends.
triggers release of cytokines and O2 from leukocytes.
can co-aggregate with most other Micro organisms of oral cavity so it is thought to be the "bridge" in plaque formation between early and late |
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Term
Prophyromonas gingivalis
or p. gingivalis |
|
Definition
gram - non motile
obligate anarobic rods
black from IRON
lives in connective tissue and in JE and alveolar bone |
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Term
| what mediates adhesion and capsule and defends against phagocytosis in P. gingivalis? |
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Definition
fimbriae
it produces proteases and degradation of host cells collagenase inhibitors.
P. gingivalis does not allow pmns for healing |
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Term
|
Definition
spirochetes, anaerobic
associated with early onset perio, NUG, acute pericornitis
can travel through viscous fluid through connective tissue!!
Invades epithelial and connective tissue!!!!
produces enzymes that kill IgA, IgG, and IgM |
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Term
|
Definition
gram - non motile
obligate anaerobic
deep pockets and aggressive perio
produces enzymes which cause death to immunoglobulins and cell death |
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Term
| what type of microbes might you find in gingiva in health? |
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Definition
gram positive rods and short rods
in health |
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Term
| what types of biofilm might you find in gingivits? |
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Definition
fusobacterium nucleatum
veillonella parvula
actinomyces viscous
P. intermedium
in gingivitis |
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Term
| what types of biofilm might you find in adult periodontitis? |
|
Definition
-p. gingivalis
-A. A.
-P. intermedia
-b. forsythis
-f. nucleatum
-eikinella corrodens
-c. rectus
-treponema, sp
in adult perio |
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Term
| what biofilm might be present in refractory adult perio? |
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Definition
-p. gingivalis
-A.A.
-P. intermedia
-b. forsythus
-F. nucleatum
-C. rectus
-P. micros
in refractory perio |
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Term
| what biofilms might be present in generalized and localized juvenile perio? |
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Definition
P. gingivalis
A. A.
Prevotella. sp
juvenile perio |
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Term
| what biofilm may be present in prepubertal gingivitis? |
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Definition
b. forsythus
f. nucleatum
c. rectus
prepubertal gingivitis |
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Term
| what biofilm may be present in NUG |
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Definition
p. intermedia
F. nucleatum
borrelia vincentii
spirochetes
in NUG |
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Term
| what biofilms may be present in HIV? |
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Definition
P. gingivalis
A.A.
P. intermedia
f. nucleatum
C. rectus
Candida albicans
HIV patients |
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Term
| what microorganisms may be found in rapid progressive perio? |
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Definition
P. gingivalis
A.A.
B. forsythis
p. intermedia
C. rectus
rapid progressive perio |
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Term
| what may be found in pregnancy gingivitis as far as microorganisms? |
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Definition
prevotella intermedia
for pregnancy |
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Term
| what are the most frequently implicated microorganisms? |
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Definition
p. gingivalis
A.A.
P. intermedia |
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Term
| what color of socranskys complex is the worst |
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Definition
red is worst
then orange is next worst |
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Term
| what MO are involved in socranskys red complex? |
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Definition
| P. gingivalis, T. Forsythia and T. denticola |
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Term
| what MO are involved in socranskys orange complex? |
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Definition
p. intermedia,
p. nigrescens,
p. micros,
f. nucleatum,
borrellia vincentii,
polymorphum,
f. peridonticum |
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Term
| what organisms are found to have the ability to invade oral tissues? |
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Definition
A.A.
P. gingivalis
F. nucleatum
Treponema |
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Term
| what is the bacteria first to be deposited on teh tooth in bacterial plaque formation? |
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Definition
|
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Term
| what is the order of organisms in undisturbed plaque biofilm? |
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Definition
s. mutans (1-2 days)
filamentous rods and fusobacterium (4-7 days)
vibrios and spirochetes (days 7-14) |
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Term
| puberty gingivalsi and pregnancy gingivitis have an increase in what bacteria? |
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Definition
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Term
| what is a primary microbe often found in NUG? |
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Definition
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Term
| what is a gram - non motile pathogen found in small numbers in healthy peridontium and in large numbers in recurrent disease sites with deep periodontal pockets? |
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Definition
| porphyromonas gingivalis. |
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Term
| Some micro organisms with less significance are |
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Definition
b. forsythus
fusobacterium sp
peptostreptococcus micros
campylobacter rectus
treponmena denticola
enteric rods
streptococcus sp
actinomyces sp |
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