Question 575 · LDEK · Etiology and pathogenesis of caries
Select the correct statements about cariogenic bacteria:
1) sticky extracellular polysaccharides produced by carious bacteria protect acids from the neutralising effects of saliva;
2) cariogenic bacteria can directly adhere to the tooth surface;
3) there is a positive correlation between the presence of cariogenic bacteria in dental plaque and caries severity;
4) no cariogenic bacteria are found in the edentulous oral cavity.
The correct answer is:
2) cariogenic bacteria can directly adhere to the tooth surface;
3) there is a positive correlation between the presence of cariogenic bacteria in dental plaque and caries severity;
4) no cariogenic bacteria are found in the edentulous oral cavity.
The correct answer is:
- A. 1,2.
- B. 2,3.
- C. 1,3.
- D. 2,4.
- E. 3,4.
Hint
Consider how bacteria actually attach to enamel and whether cariogenic species survive after loss of all teeth.
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