Periodontology: 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 · Periodontology

Sample item

What is dental plaque?

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

The answer and the reasoning

A. Biofilm on tooth surfaces

The essential Periodontology principle supports Biofilm on tooth surfaces; it is the option that most directly explains the image characteristic, safe modality choice, or oral-health finding described.

Option by option

  • A. Biofilm on tooth surfaces (correct)

    Correct. Biofilm on tooth surfaces matches the decisive detail in this sample.

  • B. Normal enamel layer

    Normal enamel layer can be useful elsewhere but is not the best answer here.

  • C. Hardened bone

    Hardened bone does not fit the stated periodontology feature.

  • D. Salivary gland tumor

    Salivary gland tumor is unsupported by the imaging or dental information provided.

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 A, Biofilm on tooth surfaces. The essential Periodontology principle supports Biofilm on tooth surfaces; it is the option that most directly explains the image characteristic, safe modality choice, or oral-health finding described.

Why is "Normal enamel layer" not the answer?

Normal enamel layer can be useful elsewhere but is not the best answer here.

Why is "Hardened bone" not the answer?

Hardened bone does not fit the stated periodontology feature.

Why is "Salivary gland tumor" not the answer?

Salivary gland tumor is unsupported by the imaging or dental information provided.

What concept does this question test?

It tests Periodontology in Dentistry. The correct option holds because: Correct. Biofilm on tooth surfaces matches the decisive detail in this sample.

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 Periodontology?

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.