Patient was sent to consult and retreatment if possible. There was urgent situation: it was symptomatic, buccal swelling, face asymmetry, patient takes antibiotics. No-end pocket on the buccal side in fact was sinus truct.I have removed all old gutta. One distal canal was missed and fragment was broken in one of the mesials. If you look at the preop x-ray – you see it insude the filling. It was easily washed out. Calcium hydroxide for 2 weeks then obturation.