Dentists sometimes give a patient antibiotics after a teeth-cleaning procedure, especially if the patient is older or has heart disease. What is the best explanation for this?
A. The materials used during a teeth-cleaning procedure are high in low-density lipoproteins, and contribute to atherosclerosis.
B. Antibiotics help remove the plaque that remains on the teeth after a teeth-cleaning procedure.
C. Antibiotics help kill the bacteria that move from the mouth to the bloodstream, and prevent the bacteria from contributing to atherosclerosis.
D. Teeth-cleaning procedures add bacteria to a person's mouth, and antibiotics are needed to control the bacteria.
Ans: C. Antibiotics help kill the bacteria that move from the mouth to the bloodstream, and prevent the bacteria from contributing to atherosclerosis.
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