Patient suffered from swelling and sinus tract in area of frontal anterior teeth. It was about trauma of #11 (8) that happened approximately 8-9 months before the visit. Percussion and palpation was painful.
X-ray showed internal resorption with perforation of the wall. I spent 3 visits to remove all soft tissue from insight the tooth (NaOCl and Ca(OH)2 between visits). Clinical symptoms disappeared 3-4 days after the first visit.