Spontaneous healing of complicated crown-root fractures in children: Two case reports

Figure 1 Initial intraoral photographs. A: Case 1, bleeding from the gingival crevice of tooth 11; B: Case 2, complicated crown fracture in tooth 11 with discolored crown and pulp chamber filled by resin, and mild inflammation in the marginal gingiva of teeth 11 and 21; C: Case 1, tooth 11 taken 1 yr later.

Figure 2 Cone beam computed tomography and periapical radiograph images showing an oblique crown-root fracture from the labial surface of the tooth 11 to the palatal alveolar ridge, which had signs of healing. A: Sagittal; B: Coronal; C: Cross-sectional; D: Periapical.

Figure 3 Cone beam computed tomography images showing an oblique crown-root fracture from the labial surface of the tooth 21 with hard tissue deposition at the pulpal side across the fracture line. A: Sagittal; B: Coronal; C: Cross-sectional.

Figure 4 Periapical radiographs. A: Periapical radiograph of teeth 11 and 21 after the first injury 1 yr ago showed fracture on tooth 21; B-D: Periapical radiographs of teeth 11 and 21 after tooth 11 was treated with apexification. The fracture line on tooth 21 became more evident over the time (B: 3 mo after initial injury; C: 6 mo after initial injury; D: 9 mo after initial injury).

Figure 5 Treatment photographs. A: Intraoral photograph after wearing a mandible occlusal pad; B: Tooth 21 was stabilized with a fiber splint; C and D: Completion of root canal therapy for tooth 11; E: Tooth 11 was restored with resin composite.

Figure 6 Periapical radiographs. A-D: Periapical radiographs of tooth 11 taken 1 (A), 2 (B), 3 (C), and 4 yr later (D).

Figure 7 Periapical radiograph and cone beam computed tomography images. A: Periapical radiograph of teeth 11 and 21 taken 9 mo after the restoration of tooth 11; B-D: Sagittal (B), coronal (C), and cross-sectional (D) cone beam computed tomography images taken 4 yr later showing sign of repair.