Voters Have Recently Decided to Have Fluoride Added to the City

question 6

Multiple Choice

Voters have recently decided to have fluoride added to the city water system. Epidemiologists now want to study the effect of fluoride on dental caries in this population. Which of the following would be conducted by the epidemiologists?

• A) Ecological study
• B) Double-blind study
• C) Community trial
• D) Screening

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Definitions:

Corpus Callosum

A broad band of nerve fibers joining the two hemispheres of the brain, facilitating communication between them.

Cerebral Hemispheres

The two halves of the brain, each controlling different functions and processes, with the left hemisphere typically managing logic and language, and the right, creativity and spatial abilities.

Spinal Nerves

Nerves that originate from the spinal cord and branch out to various parts of the body, transmitting signals between the brain and the rest of the body.

Sensory Fibers

Nerve fibers that transmit sensory information from the body to the central nervous system.