case_images: PMC7475962_01
case_images: A) front view of preoperative intra-oral photo of traumatized upper right central incisor;
  B) occlusal preoperative photo;
  C) three month follow up; and
  D) 12-month follow-up.
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case_images: PMC7475962_01_f1000research-8-25673-g0000.jpg
case_images: f1
case_images: An 8.5-year-old Egyptian girl came to the outpatient clinic of Pediatric Dentistry and Dental Public Health Department, Faculty of Dentistry, Cairo University with the chief complaint of fractured upper right central incisor due to trauma one and half months previously ( Figure 1A and B). Clinical examination of the patient revealed no adverse signs and symptoms at three, six-, nine- and 12-month follow-up periods ( Figure 1C and 1D).
case_images: A) preoperative periapical radiograph;
  B) immediate postoperative radiograph after mineral trioxide aggregate coronal plug application;
  C) follow up radiograph at six months; and
  D) follow-up radiograph at 12 months.
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case_images: PMC7475962_01_f1000research-8-25673-g0001.jpg
case_images: f2
case_images: Preoperative radiographic examination revealed a wide root canal with an open apex ( Figure 2A) using conventional periapical radiograph. Then, white mineral trioxide aggregate (MTA) (Angelus, Brazil) was placed over the matrix with placement of a moistened pellet of cotton and glass ionomer ( Figure 2B). Radiographic examination revealed an increase in root length and root thickness at six months ( Figure 2C) and complete root closure at 12 months ( Figure 2D) using digital radiography (Digora  Optime UV) and digital software (Soredex, Finland).