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

How does fluoride reduce dental caries risk?

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

The answer and the reasoning

D. Enhances remineralization and enamel acid resistance

Fluoride promotes remineralization and makes enamel more resistant to acid dissolution, but it complements rather than replaces plaque control.

Option by option

  • A. Kills every oral bacterium

    It does not sterilize the mouth.

  • B. Replaces daily toothbrushing

    Brushing remains necessary.

  • C. Dissolves plaque mechanically

    It does not physically dissolve plaque.

  • D. Enhances remineralization and enamel acid resistance (correct)

    Correct: fluoride strengthens mineral repair processes.

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.

More Dentistry questions

Questions about this Dentistry question

What is the answer to this Dentistry question?

The best answer is D, Enhances remineralization and enamel acid resistance. Fluoride promotes remineralization and makes enamel more resistant to acid dissolution, but it complements rather than replaces plaque control.

Why is "Kills every oral bacterium" not the answer?

It does not sterilize the mouth.

Why is "Replaces daily toothbrushing" not the answer?

Brushing remains necessary.

Why is "Dissolves plaque mechanically" not the answer?

It does not physically dissolve plaque.

What concept does this question test?

It tests Caries prevention in Dentistry. The correct option holds because: Correct: fluoride strengthens mineral repair processes.

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.