摘要
牙外伤一直是口腔医生临床处置的难点。对于冠根折至龈下较深的外伤牙,需通过多学科综合评估,为最终保留创造修复条件。改良牙冠延长术通过少量去骨联合根面改形,拓宽了牙冠延长术的适应证,使冠根折断位于龈下较深的部分天然牙得以保留。文章完整展示了1例外伤导致折裂的上颌侧切牙通过改良牙冠延长术及桩核冠修复恢复功能与美观的诊治过程,随访2年的临床效果令人满意,为推广此类病例实施改良牙冠延长术保留患牙提供了一定的经验。
Management of dental trauma cases is always a challenge for dentists.When crown-root subgingival fracture lines locate in close proximity to or below the alveolar bone crest due to traumatic injury,multidisciplinary assessments are indicated in order to create space for restoration.Modified crown lengthening is presented by conservative removal of the supporting alveolar bone in combination with reshaping the existing tooth surface,as a consequence of which the indication for crown lengthening has been broadened to reserve more natural teeth.This article illustrates a case of the maxillary lateral incisor with crown-root fracture caused by trauma undergoing modified crown lengthening and post-core crown restoration to get functional and esthetic recovery,and the 2-year follow-up shows satisfactory results,which provides experience for clinical management of such cases.
作者
石宇彤
王翠
江雨荷
胡文杰
SHI Yu-tong;WANG Cui;JIANG Yu-he;HU Wen-jie(Department of Periodontology,Peking University School and Hospital of Stomatology&National Center for Stomatology&National Clinical Research Center for Oral Diseases&National Engineering Laboratory for Digital and Material Technology of Stomatology&National Health Commission Research Center of Engineering and Technology for Computerized Dentistry,Beijing 100081,China;Department of Oral Medicine,Peking University International Hospital,Beijing 102206,China;不详)
出处
《中国实用口腔科杂志》
CAS
CSCD
2023年第3期307-311,共5页
Chinese Journal of Practical Stomatology
基金
国家科技基础资源调查专项(2018FY101003)
北京市卫健委住培质量提升探索及推广项目(住培-2022jy01203)
北京大学口腔医学院教改项目(2021-PT-04)。
关键词
上颌侧切牙
改良牙冠延长术
冠根折
桩核冠
maxillary lateral incisor
modified crown lengthening
crown-root fracture
post-core crown
