Which of the following teeth is most likely to have a furcal concavity?

Name: Which of the following teeth is most likely to have a furcal concavity?
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Question

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The mandibular second molar is the tooth most likely to have a concavity on the distal side of its mesial root, the surface toward the interradicular area. The mesial root of this tooth is elliptical in shape with narrow facial/lingual and broad proximal surfaces. There is a prominent concavity on both the mesial and distal surfaces of this root.

Which of the Following Teeth Is Most Likely to Have