Endodontic treatment of the maxillary first molar with palatal canal variations: A case report and review of literature  

作　　者：Kai Chen Xing Ran Yan Wang 

机构地区：[1]Department of Stomatology,Shanghai Tenth People's Hospital,Tongji University School of Medicine,Shanghai 200072,China [2]Department of Stomatology,Shanghai Jiading District Center for Dental Disease Prevention and Control,Shanghai 201899,China [3]Department of Stomatology,Eye and Dental Diseases Prevention&Treatment of Pudong New Area,Shanghai 201399,China

出　　处：《World Journal of Clinical Cases》2022年第32期12036-12044,共9页世界临床病例杂志

基　　金：Supported by The Health Discipline Construction Project in Pudong New Area,No.PWYts2021-20.

摘　　要：BACKGROUND Root canal variations frequently occur in maxillary first molars,which greatly affects the success of its treatment.The second mesiobuccal(MB)root canal is the most common root canal variation.However,only a few studies have been conducted on palatal root canal variations.Herein,we report the presence of two separate root canals in a palatal root of the maxillary first molar.CASE SUMMARY A 39-year-old woman complained of pain in the maxillary right region for 1 year,which recently worsened.Clinical examination revealed a poorly restored right maxillary first molar and caries detected at the filling marginal.Cold and heat test results indicated severe pain in the right maxillary first molar.The patient was diagnosed with irreversible pulpitis,and subsequently,root canal treatment(RCT)was performed.In total,five root canals were found in the maxillary first molar,including two separate root canals in the palatal root.RCT was successfully performed using an endodontic microscope and cone-beam computed tomography(CBCT).The CBCT image revealed a vertucci type I canal morphology in the distobuccal root,while the MB and palatal root canals were typeⅣ.At the 1-mo follow-up,the maxillary first molar was completely asy-mptomatic,and the X-ray results indicated a successful RCT.Finally,the ceramic crown restoration was performed.CONCLUSION An endodontic microscope and CBCT are useful in effectively identifying and treating root canal variations.

关 键 词：MOLAR Root canal ENDODONTICS Dental pulp cavity PULPITIS Case report 

分 类 号：R781.05[医药卫生—口腔医学]