Management of type IIIb dens invaginatus using a combination of root canal treatment,intentional replantation,and surgical therapy:A case report  

作　　者：Jing Zhang Na Li Wu-Li Li Xian-Yu Zheng Song Li 

机构地区：[1]Stomatological Hospital and College,Key Laboratory of Oral Diseases Research of Anhui Province,Anhui Medical University,Hefei 230032,Anhui Province,China

出　　处：《World Journal of Clinical Cases》2022年第18期6261-6268,共8页世界临床病例杂志

基　　金：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;Scientific Research Funding of Anhui Medical University,China,No.2020xkj148。

摘　　要：BACKGROUND TypeⅢb 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 typeⅢb 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 typeⅢb 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 TypeⅢb DI with a lateral canal can be successfully treated by root canal treatment,intentional replantation,and surgical therapy.

关 键 词：Dens invaginatus Intentional replantation Surgical therapy Lateral canal Case report 

分 类 号：R781.05[医药卫生—口腔医学]