Orthodontics: overjet: 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 · Orthodontics: overjet

Sample item

A boy has upper incisors that stand 8 mm in front of the lower incisors when in occlusion, and the lip is incompetent. Which term describes this horizontal distance?

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

The answer and the reasoning

A. Increased overjet

Overjet is the horizontal distance between the labial surface of the lower incisor and the incisal edge of the upper incisor, normally 2 to 3 mm. Overbite is the vertical overlap.

Option by option

  • A. Increased overjet (correct)

    Correct. A horizontal separation of 8 mm is an increased overjet.

  • B. Crossbite

    Crossbite is a lingual or buccal relation of upper teeth to lower teeth.

  • C. Increased overbite

    Overbite refers to vertical overlap.

  • D. Anterior open bite

    Open bite is an absence of vertical overlap.

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, Increased overjet. Overjet is the horizontal distance between the labial surface of the lower incisor and the incisal edge of the upper incisor, normally 2 to 3 mm.

Why is "Crossbite" not the answer?

Crossbite is a lingual or buccal relation of upper teeth to lower teeth.

Why is "Increased overbite" not the answer?

Overbite refers to vertical overlap.

Why is "Anterior open bite" not the answer?

Open bite is an absence of vertical overlap.

What concept does this question test?

It tests Orthodontics: overjet in Dentistry. Overbite is the vertical overlap.

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 Orthodontics: overjet?

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.