Endodontic Retreatment - Removal of Old Filling and Re-preparation under Microscope

Retreatment may be considered when there is persistent pain, sinus tracts, increased periapical radiolucency, or marginal leakage of the restoration or material defects after previous root canal treatment. The decision is affected by root canal complexity, posts/cores/broken instruments, periodontal support, overall health, and alternative options (apical surgery, extraction and restoration).