Endodontics · single question
After biomechanical preparation, on irrigation a patient suddenly experiences severe pain, facial edema, and bleeding from the canal. What is the most likely complication?
Show answer and explanation
Correct answer: A. Sodium hypochlorite (NaOCl) accident
✓ A) Sodium hypochlorite accident is correct.
NaOCl accident (sodium hypochlorite extrusion beyond the apex) causes: immediate severe burning pain, rapid tissue edema/ecchymosis in the face/neck, possible neurological symptoms, interstitial hemorrhage (bleeding from the canal is characteristic), and intense inflammation. It occurs from inadvertent injection under pressure beyond the apical foramen. Management: stop irrigation immediately, copious saline flush, analgesics, antibiotics, corticosteroids, and monitoring for airway compromise. This is a recognized endodontic emergency.
NaOCl accident (sodium hypochlorite extrusion beyond the apex) causes: immediate severe burning pain, rapid tissue edema/ecchymosis in the face/neck, possible neurological symptoms, interstitial hemorrhage (bleeding from the canal is characteristic), and intense inflammation. It occurs from inadvertent injection under pressure beyond the apical foramen. Management: stop irrigation immediately, copious saline flush, analgesics, antibiotics, corticosteroids, and monitoring for airway compromise. This is a recognized endodontic emergency.