INBDE Practice Exam 2025 – Complete Study Guide

Question: 1 / 1180

Which tooth is the widest MD (mesiodistal)?

maxillary first molar

mandibular second molar

mandibular first molar

The mesiodistal measurement refers to the width of a tooth from the front (mesial) to the back (distal) direction. The mandibular first molar is the widest tooth in this direction because it has five cusps, which leads to a larger overall size compared to the other options. The maxillary first molar has four cusps and is slightly narrower MD. The mandibular second molar has four cusps as well, but it is generally smaller in size compared to the first molar. The maxillary second molar also has four cusps but is typically narrower MD than the first molar.

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maxillary second molar

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