Infection control: 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 · Infection control

Sample item

What is the purpose of sterilizing dental instruments?

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

The answer and the reasoning

D. Destroy all viable microorganisms

The defining Infection control principle supports Destroy all viable microorganisms; it is the answer that best accounts for the finding or clinical aim described.

Option by option

  • A. Replace surface disinfection

    Replace surface disinfection does not provide the expected imaging or dental conclusion here.

  • B. Polish enamel

    Polish enamel is less appropriate because it does not match the stated infection control feature.

  • C. Improve tooth shade

    Improve tooth shade may be useful in another context but is not supported by this scenario.

  • D. Destroy all viable microorganisms (correct)

    Correct. Destroy all viable microorganisms is the most appropriate interpretation of the key information.

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, Destroy all viable microorganisms. The defining Infection control principle supports Destroy all viable microorganisms; it is the answer that best accounts for the finding or clinical aim described.

Why is "Replace surface disinfection" not the answer?

Replace surface disinfection does not provide the expected imaging or dental conclusion here.

Why is "Polish enamel" not the answer?

Polish enamel is less appropriate because it does not match the stated infection control feature.

Why is "Improve tooth shade" not the answer?

Improve tooth shade may be useful in another context but is not supported by this scenario.

What concept does this question test?

It tests Infection control in Dentistry. The correct option holds because: Correct. Destroy all viable microorganisms is the most appropriate interpretation of the key information.

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 Infection control?

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.