Different endodontic treatments induced root development of two nonvital immature teeth in the same patient: A case report

Figure 2 Treatment process of revascularization in the right maxillary second premolar. A: Blood filled in the root canal space after penetration of the periapical tissue by a #20 K-file; B: The coronal third of the root canal was sealed with iRoot BP plus; C: The access cavity was temporarily restored with glass ionomer cement; D: Postoperative periapical radiograph of the right maxillary second premolar. Note the obvious hypodense area around the root apex and the wide-open apex (white arrow); the root canal is wide, and the dentinal wall is relatively thin.