Community dentistry: OHI-S: 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 · Community dentistry: OHI-S

Sample item

The simplified oral hygiene index (OHI-S) of Greene and Vermillion records which two components?

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

The answer and the reasoning

C. Debris and calculus

OHI-S scores debris and calculus on selected surfaces of six index teeth. The scores range from 0 to 3 for each component.

Option by option

  • A. Fluorosis and hypoplasia

    Fluorosis is graded by Dean's index.

  • B. Caries and fillings

    Caries and fillings are in DMFT.

  • C. Debris and calculus (correct)

    Correct. Debris and calculus are scored.

  • D. Bleeding and pocket depth

    Bleeding and pocketing are periodontal indices.

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 C, Debris and calculus. OHI-S scores debris and calculus on selected surfaces of six index teeth.

Why is "Fluorosis and hypoplasia" not the answer?

Fluorosis is graded by Dean's index.

Why is "Caries and fillings" not the answer?

Caries and fillings are in DMFT.

Why is "Bleeding and pocket depth" not the answer?

Bleeding and pocketing are periodontal indices.

What concept does this question test?

It tests Community dentistry: OHI-S in Dentistry. The scores range from 0 to 3 for each component.

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 Community dentistry: OHI-S?

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.