The lower canine has a rather different anatomy than its upper counterpart. It is longer and narrower. Still, the reduction of this tooth is large, anyhow, because of its generally wide surface anatomy in all of its aspects. When we look at the incisal edge, we can see that the distal cusp ridge is longer, so the incisal tip is more mesially located.
The lower canine, though its narrower mesiodistally than the upper, still has a narrow cervical constriction, so proximal reduction is relatively easier on this tooth.
The labial surface has a biplanar reduction: gingival and incisal. When the typodont is closed to occlusion, the incisal portion should be adequately reduced enough to have an adequate clearance from the opposing upper canine and lateral.
The lingual area still has two lingual fossa with a lingual ridge in between. The cingulum is less prominent, so be careful not to strip out this structure.
Explanation of lower canine anatomy and how it influences the crown preparation
