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Self-Evaluation for the Dental Plaque Be Bad Module

Click on the responses to see if you are correct

1. Which of the following is another word for plaque?

• biofilm
• acquired pellicle
• intracellular polysaccharide
• extracellular matrix
• microcolonies

2. Which of the following is NOT a cariogenic bacterium?

• Streptococcus mutans
• Lactobacillus casei
• Streptococcus sobrinus
• Streptococcus mitis
• Actinomyces species

3, Which of the following causes dental caries?

• High pH from bacterial fermentation of sugar in dental plaque.
• Low pH from bacterial fermentation of sugar in dental plaque.
• High pH from bacterial fermentation of protein in dental plaque.
• Low pH from bacterial fermentation of protein in dental plaque.
• Low pH of saliva for short periods of time.
• High pH of saliva for long periods of time.

4. Which of the following is NOT an important property of a cariogenic bacterium?

• acidogenicity
• aciduricity
• adherence to dentin
• production of intracellular polysaccaride
• production of extracellular polymers

5. Which of the following if removed from the diet can lower the number of cavities a patient will get?

• fat
• protein
• sucrose
• fibrin
• xylitol

6. At which pH does tooth enamel demineralization occur?

• pH 9.5
• pH 8.5
• pH 7.5
• pH 6.5
• pH 5.5

7. Which of the following lowers the pH on the surface of the tooth and causes demineralization?

• acetate
• glucose
• lactate
• pyruvate
• sucrose
• fructose

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© 2016 Neal R. Chamberlain,Ph.D., and Priscilla L. Phillips, Ph.D. All rights reserved.  
Site Last Revised 9/27/16
Neal Chamberlain, PhD. and Priscilla L. Phillips, Ph.D. A. T. Still University of Health Sciences/Kirksville College of Osteopathic Medicine.

Take Care and Think Microbiologically!