The Molarized Premolar

Not every maxillary second premolar follows the expected anatomy. This case presented with a rare three-rooted maxillary second premolar, exhibiting a true molar-like configuration with separate mesiobuccal (MB), distobuccal (DB), and palatal (P) roots. The palatal canal was readily identified. The real challenge was the buccal aspect, where a single, narrow buccal orifice concealed two separate canals (MB and DB). Careful exploration under the dental operating microscope, combined with conservative access refinement, allowed successful identification and negotiation of both canals while preserving tooth structure. Instrumentation required meticulous control because of the restricted coronal space and early canal separation. Obturation was equally demanding, requiring precise placement to achieve a three-dimensional seal without compromising the original anatomy. This case serves as a…