Dental materials: glass ionomer cement: 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 materials: glass ionomer cement

Sample item

Which restorative material bonds chemically to enamel and dentin and releases fluoride, suiting cervical lesions in high-caries-risk patients?

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

The answer and the reasoning

C. Glass ionomer cement

Glass ionomer cement adheres to tooth structure through ion exchange and acts as a fluoride reservoir. It is useful for cervical lesions, root caries and atraumatic restorative treatment.

Option by option

  • A. Amalgam

    Amalgam requires mechanical retention and releases no fluoride.

  • B. Heat-cured acrylic

    Acrylic does not bond to or protect tooth structure.

  • C. Glass ionomer cement (correct)

    Correct. It bonds chemically and releases fluoride.

  • D. Cast gold

    Cast gold is retained by cement and mechanical form.

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, Glass ionomer cement. Glass ionomer cement adheres to tooth structure through ion exchange and acts as a fluoride reservoir.

Why is "Amalgam" not the answer?

Amalgam requires mechanical retention and releases no fluoride.

Why is "Heat-cured acrylic" not the answer?

Acrylic does not bond to or protect tooth structure.

Why is "Cast gold" not the answer?

Cast gold is retained by cement and mechanical form.

What concept does this question test?

It tests Dental materials: glass ionomer cement in Dentistry. It is useful for cervical lesions, root caries and atraumatic restorative treatment.

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 materials: glass ionomer cement?

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.