Figure 6: (a) Preoperative periapicel radiograph of case 10; a 30-year-old female with chief complaint of sinus tract on maxillary left central incisor and history of impact trauma. The tooth was necrotic with internal and apical resorption. Treatment was performed without inter-appointment dressing. Because of presence of internal resorption in midroot, the canal space completely obturated with CEM cement. (b) Follow-up radiograph at 12 months after treatment. The sinus tract resolved and preiapical osseous lesion healed.