Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key


Play button


Play button




Click to flip

34 Cards in this Set

  • Front
  • Back
in order to cause disease, microbe or toxin must _____
GI system is “loaded” with normal flora
antibiotic therapy that affects normal flora can allow pathogen growth.
Broad spectrum antibiotics and __________ can result in
antiobiotic-associated colitis (pseudomembranous colitis)
Clostridium difficile
Gram + rods:

and Gram – rods:

exist primarily in
Gingival crevice
This gram + cocci is found in large percentages in the tongue, dental plaque, gingival crevice, & saliva
most oral cavity dz is ______--due to dental caries, gingivitis, periodontal, etc
gradual disintegration of the tooth enamel and dentin
dental caries
Microbial shift in odontogenic infections is from nonpathagenic ___________
to pathogenic ____________
facultative G+ cocci & rods (strep mutans, lactobaccillus)


anerobic G- rod and spirochetes
diet that can induce dental caries
fermentable carbohydrates (e.g., sucrose)

acidic conditions
________ are the predominant early colonizers producing plaque
Streptococci (especially of the mutans group)
once bacteria colonize tooth, other bacteria can bind and secrete other factors to allow for ________
biofilm formation
Dental plaque is comprised of sugars (proteins) that allow bacteria to:
1.communicate with each other
2. evade host defense
3. evade antibiotic activity
__________ are good at binding to fissures and the gingival crevice.
Streptococcus mutans
all diseases involving the supportive structures of the teeth (periodontium)
including the gingiva and bone
periodontal disease
calcification of the plaque area
tartar formation (calculus)
play a more important role in periodontitis
Gram negative anaerobic bacteria
few bacteria, mostly Gram positive (Streptococci and Actinomyces)
Normal gingiva
increased numbers of bacteria
especially Actinomyces viscosus and other filamentous bacteria.
appearance of Gram negative anaerobes
predominately anaerobic Gram neg. bacteria and motile spirochetes
white, raised patches of yeast found on the tongue, palate, and other mucous membranes (pseudomembrane)
removal of the pseudomembrane often reveals a red, bleeding surface
thrush-Candida albicans
Herpes simplex virus (HSV)member of the _________ family
Herpes simplex virus (HSV)dsDNA virus with the ability to become _____
= no new viruses being produced
oral infections usually _____
genital infections usually ____
fever blisters, cold sores, gingivostomatitis
Herpes simplex virus (HSV)
HSV lytic infection of epithelial and mucosal cells
results in ______ of infected cells
virus infects ______ and become latent
sensory nerves (trigeminal ganglia)
sunlight, fatigue, fever, menstruation, emotional stress
stimulates recurrent infections
Seen in young adults (18-30 year olds)especially those in the military, sometimes college students

Predisposing factors:
emotional stress (wartime)
fatigue malnutrition, alcohol and/or tobacco use
neglected oral hygiene
local trauma
AIDS patients

Clinical manifestation:
painful, ulcers, bleeding gingiva necrosis, halitosis

increased number of Gram negative fusiform bacteria and spirochetes
Acute Necrotizing Ulcerative Gingivitis (ANUG)
inflammation of the mucous membranes
some supportive evidence for stomatitis due to ________ to S. sanguis and oral cavity protein
cross-reactive antibodies
most common oral mucosa lesion
inflammation of the salivary glands
Acute suppurative parotitis
primary cause of Acute suppurative parotitis
Staphylococcus aureus