Oral Microbiota Flashcards
What’s the meaning of a symbiotic relationship?
Mutually beneficial between host and microbe
What’s meant by opportunistic pathogens?
Microbe that can cause infections in certain circumstances
What are common sauces of nutrients for oral Microbiota?
- biofilm
-saliva
-carbs
-dairy
-sweeteners
What are the names of microbes that metabolise:
1. Sugar->acids
2. Proteins->acids
- Saccharolytic
- Asaccarolytic
What are factors that can influence growth of oral Microbiota?
- Host defences
- Availability of nutrients
- Temp
- O2
- PH
What do the following mean?
- psychrophiles
- mesophiles
- thermophiles
Microbiota that thrive in:
Cold
Med (mouth temp)
Hot
What’s the name of Microbiota that need these conditions to grow?
-cold
-med
-hot
Psychrophiles
Mesophiles
Thermophiles
What’s an obligate anaerobe?
Killed by normal o2 conc.
(Found in plaque)
What’s an faculatative anaerobe?
An anaerobe that prefers to do aerobic respiration but can survive via fermentation too.
What’s an aerotolerent anaerobe?
Uses fermentation to protect itself from o2 species.
What’s a microaerophile?
Require low o2 levels.
What are the 5 oxygen species in the mouth.
O2
1o2
O22-
O2-radical
OH radical
What are o2 derivatives classified as?
‘Toxic oxygen’
What’s the job of detoxifying enzymes in the oral habitat?
Convert ‘toxic oxygen’ into less toxic ones
What’s the definition of a REDOX potential (Eh)?
The tendency of a solution to give or take e-
