Dental materials: gutta-percha: 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.

Try it

Dentistry · Dental materials: gutta-percha

Sample item

Which material, with a sealer, is used to fill a root canal after pulp removal?

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

The answer and the reasoning

C. Gutta-percha

Gutta-percha, a thermoplastic form of trans-polyisoprene, is the standard root canal obturation material and is placed with a sealer to fill voids.

Option by option

  • A. Amalgam

    Amalgam is used for crown restorations and rarely for root-end filling.

  • B. Acrylic resin

    Acrylic is a denture material.

  • C. Gutta-percha (correct)

    Correct. It is the standard obturating material.

  • D. Glass ionomer base

    Glass ionomer bases are used under restorations.

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 C, Gutta-percha. Gutta-percha, a thermoplastic form of trans-polyisoprene, is the standard root canal obturation material and is placed with a sealer to fill voids.

Why is "Amalgam" not the answer?

Amalgam is used for crown restorations and rarely for root-end filling.

Why is "Acrylic resin" not the answer?

Acrylic is a denture material.

Why is "Glass ionomer base" not the answer?

Glass ionomer bases are used under restorations.

What concept does this question test?

It tests Dental materials: gutta-percha in Dentistry. The correct option holds because: Correct. It is the standard obturating material.

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: gutta-percha?

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.