Managing Maxillary First Premolars: A Conservative and Predictable Approach

This case describes the endodontic treatment of a maxillary first premolar (1.4) presenting with pulp necrosis and a canal anatomy characterized by a split in the coronal third. This configuration require careful mechanical and chemical management to ensure complete debridement while preserving tooth structure. Following access and canal identification, shaping was performed using reciprocating instruments size 25 with a 5% taper, allowing controlled negotiation of the bifurcated anatomy. To enhance apical cleaning and refinement, apical finishing was extended to size 35 with a reduced taper of 3%, achieving a balance between effective debridement and dentin preservation. Irrigation played a central role throughout the procedure. Solutions were delivered using flexible needles capable of reaching deeper portions of the canal system, while…