Tooth development and dental anatomy: gingival cysts of the newborn: 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 · Tooth development and dental anatomy: gingival cysts of the newborn

Sample item

A newborn has several tiny white nodules along the alveolar ridges. They are keratin-filled epithelial cysts that disappear within weeks. From which epithelial remnants do they usually arise?

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

The answer and the reasoning

C. Dental lamina remnants (rests of Serres)

Gingival cysts of the newborn, also called dental lamina cysts, arise from remnants of the dental lamina in the alveolar mucosa. They rupture spontaneously and need no treatment. Midline palatal cysts instead come from entrapped palatal fusion epithelium.

Option by option

  • A. Epithelial rests of Malassez

    Rests of Malassez lie in the periodontal ligament and are not present in the newborn alveolar mucosa.

  • B. Fused palatal shelf epithelium

    Fused palatal shelf epithelium gives the midpalatal raphe cysts, not alveolar ridge cysts.

  • C. Dental lamina remnants (rests of Serres) (correct)

    Correct. Dental lamina remnants lie in the gingiva and form these small cysts.

  • D. Reduced enamel epithelium

    The reduced enamel epithelium covers the crown of a formed tooth and is not the source here.

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, Dental lamina remnants (rests of Serres). Gingival cysts of the newborn, also called dental lamina cysts, arise from remnants of the dental lamina in the alveolar mucosa.

Why is "Epithelial rests of Malassez" not the answer?

Rests of Malassez lie in the periodontal ligament and are not present in the newborn alveolar mucosa.

Why is "Fused palatal shelf epithelium" not the answer?

Fused palatal shelf epithelium gives the midpalatal raphe cysts, not alveolar ridge cysts.

Why is "Reduced enamel epithelium" not the answer?

The reduced enamel epithelium covers the crown of a formed tooth and is not the source here.

What concept does this question test?

It tests Tooth development and dental anatomy: gingival cysts of the newborn in Dentistry. They rupture spontaneously and need no treatment. Midline palatal cysts instead come from entrapped palatal fusion epithelium.

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 Tooth development and dental anatomy: gingival cysts of the newborn?

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.