Dental materials and radiology: fibrous dysplasia: 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 and radiology: fibrous dysplasia

Sample item

A 14-year-old has a slowly growing painless expansion of the maxilla. A radiograph shows a uniform ground glass appearance without clear borders. What is the likely diagnosis?

AOsteosarcomaBFibrous dysplasiaCOdontomaDPeriapical abscess

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

The answer and the reasoning

B. Fibrous dysplasia

Fibrous dysplasia replaces normal bone with fibrous tissue and woven bone, giving a ground glass look with blended margins. The maxilla is commonly affected, and the lesion usually stabilises after puberty.

Option by option

A. Osteosarcoma
Osteosarcoma is painful, destructive and shows periosteal reaction.
B. Fibrous dysplasia (correct)
Correct. Ground glass with ill-defined edges is typical.
C. Odontoma
An odontoma is a well-defined radiopaque mass.
D. Periapical abscess
An abscess is painful and localised around a tooth.

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.

Questions about this Dentistry question

What is the answer to this Dentistry question?

The best answer is B, Fibrous dysplasia. Fibrous dysplasia replaces normal bone with fibrous tissue and woven bone, giving a ground glass look with blended margins.

Why is "Osteosarcoma" not the answer?

Osteosarcoma is painful, destructive and shows periosteal reaction.

Why is "Odontoma" not the answer?

An odontoma is a well-defined radiopaque mass.

Why is "Periapical abscess" not the answer?

An abscess is painful and localised around a tooth.

What concept does this question test?

It tests Dental materials and radiology: fibrous dysplasia in Dentistry. The maxilla is commonly affected, and the lesion usually stabilises after puberty.

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 and radiology: fibrous dysplasia?

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.