Figure 2: (a) Preoperative radiograph showing presence of a large periapical radioluscency and two vertical lines extending from the cervical aspect of the crown till the root apex in relation to tooth #7.(b) Gutta percha tracing of the sinus tract and gingival sulcus on the palatal aspect of tooth #7 (c) After placement of Calcium hydroxide into the root canal (d) Immediate post obturation radiograph (e) Immediate post operative radiographic after surgical f ap reflection and sealing of radicular groove.(f) Follow up radiograph at 6 months showing excellent healing