case_images: PMC8092086_01
case_images: Preoperative radiograph illustrating fractured upper left central incisor
case_images: CCD-12-94-g001.jpg
case_images: PMC8092086_01_CCD-12-94-g001.jpg
case_images: F1
case_images: On intraoral examination, the tooth 21 was fractured [Figure 1] and had no response to Endo-Ice (Coltene/Whaledent), electric pulp test (SybronEndo), and nontender to percussion.
case_images: Intraoral photograph depicting fractured upper left central incisor
case_images: CCD-12-94-g002.jpg
case_images: PMC8092086_01_CCD-12-94-g002.jpg
case_images: F2
case_images: Radiographic examination revealed that tooth 21 had open apex [Figure 2].
case_images: Intraoperative photograph depicting Gengigel being injected in the canal of the upper left central incisor
case_images: CCD-12-94-g003.jpg
case_images: PMC8092086_01_CCD-12-94-g003.jpg
case_images: F3
case_images: After that Gengigel (Ricerfarma, Milano, Italy) was inserted into the canal space [Figure 3].
case_images: Immediate postoperative radiograph with mineral trioxide aggregate placed inside the canal of the upper left central incisor
case_images: CCD-12-94-g004.jpg
case_images: PMC8092086_01_CCD-12-94-g004.jpg
case_images: F4
case_images: The MTA exhibited a hard set [Figure 4].
case_images: Postoperative photograph with restored upper left central incisor
case_images: CCD-12-94-g005.jpg
case_images: PMC8092086_01_CCD-12-94-g005.jpg
case_images: F5
case_images: To have immediate seal of the canal space, the composite build was done [Figure 5].
case_images: Postoperative radiograph after 1-year follow-up illustrating apical closure in the upper left central incisor
case_images: CCD-12-94-g006.jpg
case_images: PMC8092086_01_CCD-12-94-g006.jpg
case_images: F6
case_images: Radiographs revealed normal periapical structure with continued root development, but it was nonresponsive to stimulation with CO2 ice [Figure 6].