Endodontics · single question
Complicated crown fracture — pulp exposed to the oral environment.
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Correct answer: A. Complicated crown fracture (enamel + dentin + pulp)
Complicated crown fracture Uncomplicated = enamel ± dentin only. Complicated = fracture involving the pulp. Root fracture involves root cementum, dentin, and pulp but with intact crown. Crown-root fracture crosses the CEJ.