What causes the critical pH to be reached during formation of dental caries?
A) The saliva stagnates and putrefies, producing a large amount of acid.
B) The bacteria in saliva cause an immune response to occur, lowering the pH in the mouth.
C) Lysozyme in saliva lyses bacteria, causing the release of internal chemicals from the dead bacterial cells, which lower the pH in the mouth.
D) Plaque bacteria convert dietary sugar into acids.
Correct Answer:
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Q1: What is the most caries-conductive component of
Q2: For microorganisms to colonize the mouth (become
Q4: The pellicle is best defined as:
A)part of
Q5: Untreated dental caries can lead to:
A)strep throat.
B)necrotizing
Q6: How many different genera of bacteria may
Q7: Calculus is:
A)accumulated food debris that occurs in
Q8: What actually destroys the tooth enamel in
Q9: Oral biofilm (dental plaque) is:
A)accumulated food debris
Q10: Mutans streptococci convert _ to glucans that
Q11: Further progression of a periapical infection may
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