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Dentistry · Oral pathology: cysts and odontogenic tumours: peripheral ossifying fibroma
Sample itemA 22-year-old has a firm pink nodule arising from the interdental papilla between two upper incisors. Histology shows cellular fibrous tissue containing trabeculae of woven bone. It recurred after being shaved off. How should it be treated?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
D. Excise down to periosteum and scale the adjacent teeth
Peripheral ossifying fibroma is a reactive gingival growth related to local irritants. Recurrence follows incomplete excision, so the base and periodontal ligament source must be removed with the irritant.
Option by option
A. Block resection of the maxilla
A block resection is far beyond what a reactive gingival lesion requires.
B. Observe, as it regresses on its own
It does not regress and needs surgery.
C. Radiotherapy
It is a benign reactive lesion and radiotherapy is not used.
D. Excise down to periosteum and scale the adjacent teeth (correct)
Correct. Complete excision with removal of local irritants prevents recurrence.
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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