改良冠延长术序列治疗儿童复杂冠根折1例及文献回顾  

Sequential treatment of a complicated crown-root fracture in children with modified crown lengthening and literature review

作　　者：武敏科 贺娇娇 陈宇江 吴礼安 Minke Wu;Jiaojiao He;Yujiang Chen;Li′an Wu(State Key Laboratory of Military Stomatology&National Clinical Research Center for Oral Diseases&Shaanxi Clinical Research Center for Oral Diseases,Department of Pediatric Dentistry,School of Stomatology,the Fourth Military Medical University,Xi′an 710032,China;State Key Laboratory of Military Stomatology&National Clinical Research Center for Oral Diseases&Shaanxi Clinical Research Center for Oral Diseases,Department of Orthodontics,School of Stomatology,the Fourth Military Medical University,Xi′an 710032,China)

机构地区：[1]军事口腔医学国家重点实验室,国家口腔疾病临床医学研究中心,陕西省口腔疾病临床医学研究中心,第四军医大学口腔医院儿童口腔科,西安710032 [2]军事口腔医学国家重点实验室,国家口腔疾病临床医学研究中心,陕西省口腔疾病临床医学研究中心,第四军医大学口腔医院正畸科,西安710032

出　　处：《中华口腔医学研究杂志（电子版）》2023年第2期101-106,共6页Chinese Journal of Stomatological Research(Electronic Edition)

基　　金：国家自然科学基金(82100954);陕西省重点研发计划项目(2022KW-12)。

摘　　要：复杂冠根折是一种涉及牙体硬组织、牙髓及牙周组织损伤的牙外伤,通常需要综合考量确定治疗方案,以期重建牙周组织健康,获得良好的预后。本文介绍了1例儿童恒中切牙复杂冠根折的序列治疗,通过改良冠延长术暴露牙根折断面,粘接断冠,完成根管治疗术并辅以纤维桩修复,最大限度地保留了患牙原本的牙周支持。经过2年随访,患牙重建了生物学宽度并形成生理性屏障,维持了良好的美学效果与牙周组织健康。Complicated crown-root fracture involves enamel,dentin,pulp,cementum and periodontal tissue,which usually requires comprehensive consideration to determine the treatment plan,rebuild the health of periodontal tissue and retain a favorable long-term prognosis.This article presented the sequential treatment to a complicated crown-root fractured permanent central incisor in children,which included the exposure of the fracture margin by the modified crown lengthening,fragment reattachment,root canal treatment,and fiber post reinforcement.The modified crown lengthening surgery removed a small amount of bone tissue,which maximally preserved the original periodontal support of the affected tooth.After 2 years of follow-up,the biological width was reconstructed around the affected tooth,which maintained the desirable aesthetics and periodontal health.

关 键 词：复杂冠根折 冠延长术 断冠再接 序列治疗 纤维桩 

分 类 号：R788[医药卫生—口腔医学]