改良牙冠延长术及桩核冠修复保留外伤上颌侧切牙的临床效果观察(附1例2年随访报告)  

Efficacy of modified crown lengthening procedure and post-core crown restoration in maxillary lateral incisor with dental trauma:a case report of 2-year follow-up

作　　者：石宇彤 王翠[1] 江雨荷 胡文杰[1] 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)

机构地区：[1]北京大学口腔医学院·口腔医院牙周科,北京100081 [2]北京大学口腔医学院·口腔医院修复科、国家口腔医学中心、国家口腔疾病临床医学研究中心、口腔数字化医疗技术和材料国家工程实验室、国家卫生健康委员会口腔医学计算机应用工程技术研究中心,北京100081 [3]北京大学国际医院口腔科,北京102206

出　　处：《中国实用口腔科杂志》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)。

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.

关 键 词：上颌侧切牙 改良牙冠延长术 冠根折 桩核冠 

分 类 号：R78[医药卫生—口腔医学]