Dental trauma: subluxation: 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 · Dental trauma: subluxation

Sample item

A child has a tender permanent incisor with increased mobility but no displacement after trauma. What injury is most likely?

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

The answer and the reasoning

A. Tooth subluxation

Subluxation is injury to supporting tissues causing tenderness and mobility without displacement. Follow-up is needed because pulpal and periodontal complications can develop.

Option by option

  • A. Tooth subluxation (correct)

    Correct. Mobility without displacement defines subluxation.

  • B. Intrusion

    Intrusion is displacement of the tooth into alveolar bone.

  • C. Avulsion

    Avulsion is complete displacement out of the socket.

  • D. Lateral luxation only

    Lateral luxation includes displacement from the original position.

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, Tooth subluxation. Subluxation is injury to supporting tissues causing tenderness and mobility without displacement.

Why is "Intrusion" not the answer?

Intrusion is displacement of the tooth into alveolar bone.

Why is "Avulsion" not the answer?

Avulsion is complete displacement out of the socket.

Why is "Lateral luxation only" not the answer?

Lateral luxation includes displacement from the original position.

What concept does this question test?

It tests Dental trauma: subluxation in Dentistry. Follow-up is needed because pulpal and periodontal complications can develop.

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 Dental trauma: subluxation?

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.