Abstract:

With the development of implant surgery，more and more dentists and patients restore the function and aesthetics of the edentulous area with implant restorations. The preservation and reconstruction of the alveolar ridge and the gingiva is a prerequisite for long-term success in the restoration of satisfactory functional and aesthetic effects. The molars with severe periodontal lesions were affected by many factors，which resulted in severe infection and alveolar bone absorption before removal. This paper presents a case of a molar with severe periodontal lesion，which was removed with periodontal traditional incision technique and minimally invasive extraction. By completely removal of the sockets infection，the surgery promotes the healing of follow-up site preservation，and achieved good clinical effect.

Key words: molar, severe periodontitis, minimally invasive extraction, ridge preservation

摘要：

随着种植手术的发展，越来越多的医生与患者选择通过种植修复体来恢复缺牙区的功能与美观，而良好的牙槽嵴和牙龈解剖形态的保存或重建是修复体获得满意的功能和美学效果并取得长期成功的先决条件。重度牙周病变的磨牙由于多种因素导致其在拔除前存在较严重感染与牙槽骨吸收。文章展示了1例罹患重度牙周病变磨牙的临床处置过程，包括结合牙周传统切口技术与微创拔牙，彻底清除拔牙窝感染，促进后续位点保存术后组织愈合手术的操作流程与技术要点，并取得了良好的临床效果。

关键词: 磨牙, 重度牙周炎, 微创拔牙, 位点保存术