本文对7例重度牙周炎患者的下领前牙多个牙齿松动Ⅰ°～Ⅱ°,个别牙齿松动Ⅲ°的保留方法进行探讨。通过常规的口腔卫生宣教,教会患者正确刷牙方法,洁治、刮治、调,用0.2mm 不锈钢丝结扎固定,观察时间最长五年,最短半年,均完好保留。提出牙周炎患者为保持牙列完整,松动Ⅲ°的牙齿可以保留,扩太了保留牙龄的适应症。 In this paper, 7 cases of severe periodontitis in patients with lower anterior teeth multiple loosening Ⅰ ° ~ Ⅱ °, some teeth loose Ⅲ ° retention methods were discussed. Through routine oral health education, the church patients correct brushing method, Jieji, scraping, adjusting, with 0.2mm stainless steel wire ligation fixed, the longest observation time of five years, the shortest six months, are well preserved. Proposed periodontitis patients in order to maintain complete dentition, loosening Ⅲ ° of the teeth can be retained, expanding the age reserved for indications.