Right upper second molar (PA837) (o: occlusal, B or b: buccal, M or m: mesial, l: lingual, d: distal. I and II: The occlusal (I) and lingual (II) views of dentine surface reconstructed from micro-CT scanning).

<p>Dotted lines point to the mesial accessory ridges of the occlusal surface and to the expression of a Carabelli’s cusp on the lingual surface of the crown. I and II are not scaled.