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数字化规划的外科牙冠延长术：一种矫正露龈笑的新型骨减量策略。

Digitally planned surgical crown lengthening: a novel bone reduction strategy to correct a gummy smile.

作者信息

Cong Nguyen Thai, Nam Pham Hoai, Viet Hoang, Marya Anand

机构信息

Department of Periodontology and Implantology, Faculty of Dentistry, Van Lang University, Ho Chi Minh City 700000, Vietnam.

Department of Orthodontics and Pedodontics, Faculty of Dentistry, Van Lang University, Ho Chi Minh City 700000, Vietnam.

出版信息

J Surg Case Rep. 2024 Apr 4;2024(4):rjae202. doi: 10.1093/jscr/rjae202. eCollection 2024 Apr.

DOI:10.1093/jscr/rjae202
PMID:38577268
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10994202/
Abstract

This report describes the bone reduction guide which was digitally obtained to improve diagnosis, treatment outcome and follow-up. Treatment of gingival smiles due to altered passive eruption should include interdisciplinary planning and smile design to facilitate the prediction of treatment outcome. Crown lengthening surgery can be supported by digital tools to improve surgical planning and follow-up. A 30-year-old female patient was referred to a private dental clinic seeking solutions for her gingival smile. Based on the anatomical crown length, a smile design was created, and the patient was presented with a simulated smile before treatment. In the surgical phase, a full-thickness flap was raised in the upper jaw to achieve the desired outcome. Using cone-beam computed tomography to determine cementoenamel junction for smile design and treatment planning brings many benefits. Patients and clinicians can foresee treatment results. From there, appropriate changes can be made. The bone reduction guide is designed to rest on the bone to help the clinician cut the bone accurately and thoroughly follow the established plan.

摘要

本报告介绍了通过数字化获取的骨量减少导板，以改善诊断、治疗效果和随访。因被动萌出改变导致的牙龈微笑的治疗应包括多学科规划和微笑设计，以促进对治疗效果的预测。冠延长手术可借助数字工具来改善手术规划和随访。一名30岁女性患者被转诊至一家私立牙科诊所，寻求解决其牙龈微笑问题的方案。根据解剖冠长度，设计了一个微笑方案，并在治疗前向患者展示了模拟微笑。在手术阶段，在上颌掀起全厚瓣以达到预期效果。使用锥形束计算机断层扫描来确定用于微笑设计和治疗规划的牙骨质釉质界带来诸多益处。患者和临床医生可以预见治疗结果。据此，可以做出适当的改变。骨量减少导板设计为放置在骨上，以帮助临床医生准确地切割骨并完全按照既定方案操作。

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