Endodontic Retreatment Using Reciprocal File System in Underfilled Root Canal: A Case Report

Underfills in endodontic treatment increases failure rates by 14%. A 23-year-old female patient came with chief complaint of slight pain on #35. The periapical radiograph showed underfilled root canal and periodontal ligament space widening. The root canal filling was removed with reciprocal file system. Follow-up visit showed no recurrence pain and the tooth function was fully restored using a fiber-reinforced post and an all-ceramic crown.