[Interpretation of the European Federation of Periodontology S3 level clinical practice guideline for treatment of stage Ⅳ periodontitis].

The S3 level clinical practice guideline for the treatment of stage Ⅳperiodontitis, developed by the European Federation of Periodontology, was published in April 22, 2022 (DOI: 10.1111/jcpe.13639). According to the severity and complexity, stage Ⅳ periodontitis was grouped into four case types, and comprehensive treatment plans were formulated correspondingly in the guideline, including tooth splinting, occlusal adjustment, orthodontic therapy, restorative therapy, and personalized supportive periodontal care as well. The aim of present work is to intensively interpret the key points of the guideline and help the clinicians to understand this guideline better, in order to improve the treatment level of stage Ⅳ periodontitis in China.欧洲牙周病学会（European Federation of Periodontology）于2022年4月发布了Ⅳ期牙周炎治疗S3级临床指南（DOI：10.1111/jcpe.13639），该指南根据Ⅳ期牙周炎的严重性和复杂性，将其分为4种类型，并制订了相应的综合治疗方案，包括牙周夹板、调（牙合）、正畸、修复治疗和个性化的牙周支持治疗，以防止其复发。本文旨在对该指南进行要点梳理和解读，以帮助临床医师更好地理解这一指南，提高我国Ⅳ期牙周炎的治疗水平。.