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Dentistry · Dental materials
Sample itemWhat material is used to obturate a prepared root canal?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
D. Gutta-percha
The defining Dental materials principle supports Gutta-percha; it is the answer that best accounts for the finding or clinical aim described.
Option by option
A. Alginate
Alginate may be useful in another context but is not supported by this scenario.
B. Impression wax
Impression wax does not provide the expected imaging or dental conclusion here.
C. Amalgam
Amalgam is less appropriate because it does not match the stated dental materials feature.
D. Gutta-percha (correct)
Correct. Gutta-percha is the most appropriate interpretation of the key information.
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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