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Dentistry · Dental radiology: condensing osteitis
Sample itemA lower first molar with a large carious lesion shows widened periodontal space and a uniform radiopacity at the apex that is not fused to the root. What is the diagnosis?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
D. Condensing osteitis
Condensing osteitis is a sclerotic bone reaction to low-grade pulpal inflammation, seen as a radiopacity next to the apex of a non-vital or inflamed tooth. Cementoblastoma fuses with the root of a vital tooth.
Option by option
A. Periapical abscess
An abscess is radiolucent.
B. Radicular cyst
A radicular cyst is radiolucent.
C. Cementoblastoma
Cementoblastoma is fused to the root and the tooth is vital.
D. Condensing osteitis (correct)
Correct. Low-grade infection causes bone sclerosis.
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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