Published online Jun 26, 2022. doi: 10.12998/wjcc.v10.i18.6261
Peer-review started: December 17, 2021
First decision: January 26, 2022
Revised: February 8, 2022
Accepted: April 21, 2022
Article in press: April 21, 2022
Published online: June 26, 2022
Type Ⅲb dens invaginatus (DI) with a lateral canal located at the mid-third of the root is rarely reported. Here, we report a rare case of type Ⅲb DI in the left upper anterior tooth with a lateral canal that led to persistent periodontitis.
A 15-year-old female patient presented with a chief complaint of pain associated with recurrent labial swelling in the area of the left anterior tooth. A diagnosis of type Ⅲb DI and chronic periodontitis was made. Intentional replantation was performed after conventional endodontic treatment failed. After 6 mo, the patient was asymptomatic, but a sinus tract was observed. Cone-beam computed tomo
Type Ⅲb DI with a lateral canal can be successfully treated by root canal treatment, intentional replantation, and surgical therapy.
Core Tip: Type Ⅲb dens invaginatus (DI) with a lateral canal located at the mid-third of the root is first reported. Here, we report a rare case of type Ⅲb DI in the left upper anterior tooth with a lateral canal that led to persistent periodontitis and it was successfully treated by a combination of root canal treatment, intentional replantation, and surgical therapy.