11. Which trait CANNOT be used to distinguish the mesial from the distal surface on a permanent mandibular molar? A. The distobuccal cusp is shorter than the mesigbuccal cusp. B. If there are three buccal cusps, the distal cusp is shorter and smaller than the distobuccal cusp. C. Mandibular second molars are wider huccolingually in the mesial half compared to the distal half.D. The buccal crest of curvature (height of contour) is more cervical than the lingual crest of curvature. E. The longest cusp is the mesiolingual cusp.

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