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

Figure 3 Treatment process of the right mandibular second premolar. A: There was no obvious blood in the root canal after penetration of the periapical tissue by a #20 K-file; B: iRoot BP plus was placed in the apical third of the root canal and pressed tightly to form an apical barrier; C: Intraoral radiograph of the right mandibular second premolar after the placement of iRoot BP plus at the apical third of the root canal (black arrow); D and E: The coronal and middle third of the root canal was filled with hot gutta-percha; F: The access cavity was restored with light-cured composite resin.