Pulp health and calcific healing of a complicated crown–root fracture with additional root fracture in a maxillary incisor: A case report  

作　　者：Na Li Yue-Yue Ren Ying Tang Qi Yang Tian-Tian Meng Song Li Jing Zhang 

机构地区：[1]Stomatological Hospital and College,Anhui Medical University,Hefei 230032,Anhui Province,China [2]Department of Endodontics,The Affiliated Stomatological Hospital of Xuzhou Medical University,Xuzhou 221000,Jiangsu Province,China

出　　处：《World Journal of Clinical Cases》2025年第3期42-49,共8页世界临床病例杂志（英文）

基　　金：Supported by 2021 Disciplinary Construction Project in School of Dentistry,Anhui Medical University,No.2021kqxkFY05.

摘　　要：BACKGROUND Complicated crown–root fracture (CRF) involves severe injury to the crown, root,and pulp, and may be accompanied by multiple root fractures. The loss of a toothhas lifelong consequences for children and teenagers, but the maintenance of pulphealth and the calcific healing of multiple root fractures are rarely reported in theliterature.CASE SUMMARY This case reports healing of a permanent tooth with complicated crown–root andadditional root fractures, in which pulp health was maintained. A 10-year-old girlfell and fractured the root of her maxillary left central incisor at the cervical level.After the coronal fragment was repositioned, the tooth was splinted until thetooth was no longer mobile, 2 years later. Eight years after treatment, the toothhas remained asymptomatic with vital pulp and localized gingival overgrowth.Cone-beam computed tomography revealed not only calcified healing of the CRFbut also spontaneous healing in an additional undiagnosed root fracture. Thefracture line on the enamel could not be healed by hard tissue and formed agroove in the cervical crown. It was speculated that the groove was related to thelocalized gingival overgrowth.CONCLUSION This case provides a clinical perspective of the treatment of a tooth with acomplicated CRF and an additional root fracture.

关 键 词：Complicated crown-root fracture Multiple root fracture Spontaneous healing Cone-beam computed tomography Long-term follow-up Case report 

分 类 号：R78[医药卫生—口腔医学]