Caries prevention: practice question

A Dentistry question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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Dentistry · Caries prevention

Sample item

What is a major benefit of topical fluoride?

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

B. Enhances enamel acid resistance

Fluoride promotes remineralization and formation of more acid-resistant enamel mineral, reducing caries risk when used appropriately with plaque control.

Option by option

  • A. Dissolves dentin

    Fluoride does not dissolve dentin.

  • B. Enhances enamel acid resistance (correct)

    Correct: fluoride strengthens resistance to acid demineralization.

  • C. Stops salivary flow

    Fluoride does not stop saliva production.

  • D. Removes all calculus

    Calculus requires professional removal, not fluoride alone.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

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Questions about this Dentistry question

What is the answer to this Dentistry question?

The best answer is B, Enhances enamel acid resistance. Fluoride promotes remineralization and formation of more acid-resistant enamel mineral, reducing caries risk when used appropriately with plaque control.

Why is "Dissolves dentin" not the answer?

Fluoride does not dissolve dentin.

Why is "Stops salivary flow" not the answer?

Fluoride does not stop saliva production.

Why is "Removes all calculus" not the answer?

Calculus requires professional removal, not fluoride alone.

What concept does this question test?

It tests Caries prevention in Dentistry. The correct option holds because: Correct: fluoride strengthens resistance to acid demineralization.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Caries prevention?

Learn the dental formula, eruption ages and tooth structure once, as tables. Then use the flashcards and the other Dentistry questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.