case_images: PMC10985509_01
case_images: (A) Initial clinical view showing severe loss of clinical crown. (B) The outcome of gingivectomy with a tissue trimmer bur
case_images: FID-21-3-g001.jpg
case_images: PMC10985509_01_FID-21-3-g001.jpg
case_images: F1
case_images: The clinical crown was lost approximately to the level of the gingiva (Figure 1). After removing the temporary restorative material, a gingivectomy was carried out to half the depth of the gingival sulcus (1mm) using a tissue trimmer ceramic bur (CSTT, Ceramic Burs FG, Dia-Tessin, Vanetti SA) (Figure 1).
case_images: (A) Initial radiograph showing flared root canal space with thin dentinal walls. (B) Radiographic view at the stage of gutta-percha removal. Note the extremely thin dentinal wall in the mid-mesial portion of the root (approximately 0.3mm)
case_images: FID-21-3-g002.jpg
case_images: PMC10985509_01_FID-21-3-g002.jpg
case_images: F2
case_images: Since the dentinal wall was very thin in the middle third of the root (approximately 0.3mm in the mid-mesial portion of the root (Figure 2)), gutta-percha removal was limited to this level due to the risk of root perforation.
case_images: Post and core made of PEEK material
case_images: FID-21-3-g003.jpg
case_images: PMC10985509_01_FID-21-3-g003.jpg
case_images: F3
case_images: Then, tungsten carbide burs were used to achieve the desired shape (Figure 3).
case_images: Occlusal view before (Left) and after (Right) ultrasonic cleaning. Note that the remaining gutta-percha in the narrow channel in the distobuccal portion of the root canal was not completely removed due to the risk of root perforation
case_images: FID-21-3-g004.jpg
case_images: PMC10985509_01_FID-21-3-g004.jpg
case_images: F4
case_images: (A) Cementation of polyether ether ketone post and core (B) Tint was applied with a brush (C) Composite resin placement
case_images: FID-21-3-g005.jpg
case_images: PMC10985509_01_FID-21-3-g005.jpg
case_images: F5
case_images: Final view of the restoration on the lower left lateral incisor
case_images: FID-21-3-g006.jpg
case_images: PMC10985509_01_FID-21-3-g006.jpg
case_images: F6
case_images: Figure 6 shows the outcome of the restorative procedure at the end of the session.