[Guidelines for the design and clinical protocols of surgical guides in crown lengthening via digital workflow(2026)].

内容摘要

Crown lengthening serves as a key procedure for addressing aesthetic concerns such as gummy smile, short clinical crowns, and uneven gingival contours. Advances in digital technology, particularly computer-aided design and computer-aided manufacturing (CAD/CAM), now allow precise translation of preoperative plans into surgical execution, enabling accurate control over gingival margin and alveolar ridge positioning. To standardize the clinical application of this technology, the Chinese Society of Digital Dental Industry (CSDDI) convened a panel of experts to develop this guideline document. It aims to define steps for digital data acquisition, integration, and design in guided crown lengthening within the aesthetic zone; standardize the digital workflow for designing surgical guides for aesthetic crown lengthening; assist clinicians in formulating appropriate digital surgical plans through thorough digital analysis and diagnosis; and offer practical guidance on performing crown lengthening surgery using digital guides in aesthetic areas. Ultimately, this guideline seeks to standardize the surgical protocol for digital guide assisted crown lengthening, thereby improving procedural accuracy and predictability of treatment outcomes. 牙冠延长术常用于改善露龈笑、临床牙冠短等口腔美学缺陷及相关功能问题，其美学效果取决于对软硬组织切除位置、形态和量的精确控制。随着数字化技术的发展，计算机辅助设计与辅助制作技术可通过导板将术前规划准确转移至手术中，从而精确引导龈缘与牙槽嵴位置。为规范该技术的临床应用，全国卫生产业企业管理协会数字化口腔产业分会（CSDDI）组织专家制订本指南，旨在建立明确的导板引导下前牙美学区牙冠延长术的数字化资料采集、整合与设计步骤，规范前牙美学区牙冠延长手术导板的数字化设计流程；指导临床医师在临床工作中通过全面的数字化分析和诊断，为前牙美学区制订适宜的牙冠延长术数字化手术方案；对临床医师应用数字化手术导板进行前牙美学区牙冠延长术操作给予指导，规范数字化手术导板的操作流程，提升治疗精准性和结果的可预期性。.