Accessory Root Incidence — NDEB AFK MCQ
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Correct answer: C — Mandibular third molar
Mandibular third molars have the highest variability in root number, with frequent occurrence of supernumerary roots (3, 4, or more roots reported). Maxillary third molars also show significant variability but tend toward fused/conical roots rather than supernumerary roots. Mandibular premolars can occasionally have two or three roots. Root morphology should always be assessed radiographically before extraction to anticipate complications.
Reference: Ash – Wheeler's Dental Anatomy, Physiology, and Occlusion, 11th ed., 2020