Case Report
Copyright ©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Jun 26, 2022; 10(18): 6261-6268
Published online Jun 26, 2022. doi: 10.12998/wjcc.v10.i18.6261
Management of type IIIb dens invaginatus using a combination of root canal treatment, intentional replantation, and surgical therapy: A case report
Jing Zhang, Na Li, Wu-Li Li, Xian-Yu Zheng, Song Li
Jing Zhang, Na Li, Wu-Li Li, Xian-Yu Zheng, Song Li, Stomatological Hospital and College, Key Laboratory of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei 230032, Anhui Province, China
Author contributions: Zhang J, Li N, and Li WL analyzed and interpreted the imaging findings; Zhang J and Zheng XY reviewed the literature and drafted the manuscript; Li S was the patient’s dentist and was responsible for the revision of the manuscript; all authors issued final approval for the version to be submitted.
Supported by Health and Medical Research Fund of the Food and Health Bureau, Hong Kong, China, No. 06171376; Natural Science Foundation of Anhui Province, China, No. 2008085MH255; and Scientific Research Funding of Anhui Medical University, China, No.2020xkj148.
Informed consent statement: Consent was obtained from the patient’s parents for publication of this report.
Conflict-of-interest statement: The authors declare that they have no conflicts of interest to disclose.
CARE Checklist (2016) statement: The authors have read the CARE Checklist (2016), and the manuscript was prepared and revised according to the CARE Checklist (2016).
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Song Li, PhD, Doctor, Professor, Stomatological Hospital and College, Key Laboratory of Oral Diseases Research of Anhui Province, Anhui Medical University, No. 69 Meishan Road, Hefei 230032, Anhui Province, China. 3197053337@qq.com
Received: December 17, 2021
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
Abstract
BACKGROUND

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.

CASE SUMMARY

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 tomography images showed bone loss in the mesial of the mid-root. Based on methylene blue staining and microscopy images, the lateral foramen located at the middle third of the root was surgically treated. After 3 years of follow-up, the clinical findings and radiographic assessment presented a favorable prognosis of bone healing without root absorption or ankylosis.

CONCLUSION

Type Ⅲb DI with a lateral canal can be successfully treated by root canal treatment, intentional replantation, and surgical therapy.

Keywords: Dens invaginatus, Intentional replantation, Surgical therapy, Lateral canal, Case report

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.