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Dens Evaginatus — NDEB AFK MCQ

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ModerateDental Anatomy & OcclusionDens EvaginatusNDEB AFK

Which of the following permanent teeth is most commonly affected by dens evaginatus (an accessory cusp on the occlusal surface)?

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Correct answer: C — Mandibular premolar

Dens evaginatus is an anomalous tubercle or accessory cusp projecting from the occlusal surface, most commonly found on mandibular premolars (particularly in individuals of East Asian, Inuit, and First Nations descent). The tubercle contains a pulp horn extension that may be exposed by wear or fracture, causing pulp necrosis and periapical pathology in a young, otherwise healthy tooth. Prophylactic management includes gradual occlusal reduction with fluoride application or preventive resin coverage of the tubercle.

Reference: Neville – Oral and Maxillofacial Pathology, 4th ed., 2016