Retreatment of Upper Premolars
Upper Right Premolars (UR4 and UR5)
Clinical Radiographs
Case Details
Patient
Male, mid-50s
Presentation
Upper right premolars (UR4 and UR5) with failing previous root canal treatments. Both teeth had persistent low-grade infection causing intermittent gum tenderness.
The Challenge
The old root filling material must be completely removed - a painstaking process that risks pushing infected debris beyond the root tip. In both teeth, the previous fillings were short of the apex, suggesting untreated portions of the canals.
Treatment
Old filling material was removed using solvents and ultrasonic techniques under microscope guidance. The full length of each canal was re-negotiated past the previous fill endpoints. Fresh cleaning, shaping, and obturation ensured disinfection of the previously untreated apical segments.
Outcome
Post-operative radiographs confirmed satisfactory root canal fill in both teeth. Symptoms resolved fully.
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