Abstract:

The dentogingival complex damages of anterior teeth with biological width infringed by unfitting restorations set difficult problems for both the restorative dentists and the periodontal dentists. Periodontal treatment，crowns restored again，is not the right concept of restorative dentistry. Outcomes of periodontal surgery can be more predictable and effective based on esthetics. Meanwhile，a constant challenge for clinicians and technicians come out accordingly. In this study，therapeutic principle and operative procedure was summarized by combined scientific literature and the experience of our team.

Key words: esthetics, restoration, biologic width, crown lengthening surgery

摘要：

由于前牙不良修复体侵犯牙周生物学宽度引起的牙体-牙周联合病损是口腔修复学与牙周病学的共同难题，单纯恢复牙周健康，再次制作精良的修复体已不符合现代口腔医学的治疗理念。从美学角度出发进行修复设计，指导牙周手术，才能更有效、更可控地实现理想的治疗效果。同时，对口腔修复科医生、牙周科医生、技师的治疗团队提出了挑战。文章结合科学文献及作者所在团队的临床经验，对此类病损的治疗原则和操作流程进行总结。

关键词: 美学, 修复, 生物学宽度, 牙冠延长术