Maxillary and Mandibular First Premolars Showing Three-Cusp Pattern: An Unusual Presentation

Figure 1

(a) Mirror image photograph showing 44 with mesiolingual and distolingual cusp. (b) Photograph of mandibular cast showing 44 with typical “Y” shaped occlusal groove with 3 cusps resembling mandibular second premolar.

(a)

(b)