ATYPICAL ANATOMY

This case represents a rare anatomic variant of a tooth anatomy much more commonly seen in the mandible: “c-shape”. Because the maxillary variant often has fused roots with DB/P canals that join very early in the pulp chamber with a separate MB canal that joins near the apex, some refer to this rare tooth as having a “semi-colon” anatomy. Take a look at the clinical photograph; can you see the semi-colon