Widest Permanent Tooth — NDEB AFK MCQ
Instant feedback + full explanation. One question, done properly.
Educational content. Not a substitute for clinical judgement or local policy.
Reveal the answer and explanation
Correct answer: A — Maxillary first molar
The maxillary first molar has the greatest buccolingual (buccopalatal) crown dimension of any permanent tooth, approximately 11.0-11.5 mm. This wide dimension accommodates the four main cusps (mesiobuccal, distobuccal, mesiopalatal, distopalatal) and sometimes a fifth cusp (cusp of Carabelli). The broad base provides stability and houses the largest pulp chamber volume. This tooth also has the greatest overall crown volume of any tooth.
Reference: Ash – Wheeler's Dental Anatomy, Physiology, and Occlusion, 11th ed., 2020