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8 Cards in this Set

  • Front
  • Back

A Nature Cleaning Mechanism of Epithelial Cells ...

High Turnover Rate

Biofilm =

Microbial + Matrix of Extracellular Polymeric Substances

The Species in Early colonization

-Actinomyces species


-Yellow Complex: Streptococcus



-Green Complex: Capnocy/ A.A./


E. corrodens/ Campylobacter consisus



-Purple Complex: V. parvula/ A. odontolytius

The Species in Late colonization


(Major etiology of perio. disease =>Gram - )

-Orange complex: Campylobacter gracillis,


C. rectus, P. intermedia, F periodonticum



-Red complex: T. forsythia, P. gingivalis,


Tr. denticola

Majority nutrients for biofilm come from ...

-Saliva



-Cervicular fluid


Non-Specific Plaque Hypothesis

-Quantity of plaque



-Gingivitis +Time = Periodontitis

Specific Plaque Hypothesis

-Not about the quantity but the TYPE of bacteria



-Gram - (Anaerobic bacteria)


Criteria of


Periodontal Pathogens

-Association between bacteria species and periodontal disease


-The elimination should release the disease


-The host response must be detectable


-The bacteria must have virulent factors which play a role in the disease process


-Reproducibility in animal model study