美学区牙冠延长术联合树脂修复改善露龈笑并关闭牙间隙的初步探索  

Preliminary exploration of the esthetic crown lengthening with direct composite resin restorations for the treatment of gummy smile and diastema closure

作　　者：韦宁 危伊萍 邱淑婷 胡文杰[1] 刘云松[2] 姬爱萍 寻春雷[4] WEI Ning;WEI Yi-ping;QIU Shu-ting;HU Wen-jie;LIU Yun-song;JI Ai-ping;XUN Chun-lei(Department of Periodontology&Prosthodontics,Peking Unirersity School and Hospital of Stomatology&National Center of Stomatology&National Clinical Research Center for 0ral Diseases&National Engi-neering Laboratory for Digial and Material Technology of Stomatology,Bejjing 100081,China;不详)

机构地区：[1]北京大学口腔医学院·口腔医院牙周科,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,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,北京100081 [3]北京大学口腔医学院·口腔医院急诊科,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,北京100081 [4]北京大学口腔医学院·口腔医院正畸科,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,北京100081

出　　处：《中国实用口腔科杂志》2021年第4期398-404,共7页Chinese Journal of Practical Stomatology

基　　金：国家自然科学基金(61876005);2018北京市住院医师规范化培训质量提高项目(住培2018009);北京大学口腔医学院2018年教改重点项目(2018-ZD-01)。

摘　　要：上颌前牙美学区作为微笑过程关注的重点,区域内任何粉白美学的缺陷都可能损害整体的微笑美学,对于高位笑线伴有被动萌出不足的患者,微笑时显露牙龈过多是常见的美学问题之一。而美学区牙冠延长术通过对牙周软硬组织的切除和成形,可有效重建协调、美观的龈缘位置和曲线,增加被动萌出不足的临床冠高度,同时改善牙冠宽长比等相关白色美学缺陷。文章完整展示了1例针对因被动萌出不足所致露龈笑且存在上中切牙牙间隙的美学治疗过程,包括美学分析、治疗计划的制定、临床实施过程和随访效果观察,详细介绍了美学区牙冠延长术的手术过程,并采用美学树脂直接修复关闭窄牙间隙,为此类患者的临床诊治积累经验。As the main focus during smiling,any defect of teeth and gingiva in the maxillary esthetic zone may compromise the smile esthetics. The gummy smile,which means smiling with excessive gingiva displayed,is often seen in patients with a high smile line and altered passive eruption. By excising and shaping the periodontal soft and hard tissues,esthetic crown lengthening can effectively establish the position of gingival margin. The increased clinical crown height after surgery can also improve the white esthetics related to crown width-to-length ratio. This article illustrates a case of gummy smile accompanied with diastema in maxillary central incisors which received esthetic crown lengthening and composite resin restorations,including esthetic analysis,treatment planning,clinical implementation process and followup observation. This case provides evidence and clinical experience for the management of such patients.

关 键 词：上前牙 牙冠延长术 牙间隙 树脂 直接修复 

分 类 号：R78[医药卫生—口腔医学]