Abstract: Orthodontic treatment for patients with periodontitis faces new challenges due to the bipolarization of patient age distribution，calling for individualization as the core principle. Adequate periodontal evaluation and individualized treatment planning are essential for achieving a balance between periodontal health and orthodontic outcomes. This article systematically discusses the key points of combined orthodontic and periodontal treatment for young and aging patients with periodontitis，including periodontal assessment，treatment goal setting based on alveolar bone resorption patterns，extraction decision-making and surgical timing，appliance selection，clinical considerations on age differences，multidisciplinary collaboration，and post-treatment retention，aiming to provide references for clinicians.

Key words: periodontitis, orthodontic treatment, young patients, aging patients, individualized treatment

摘要： 牙周炎患者的正畸治疗面临患者年龄分布两极化的新挑战，需以个体化原则为核心。充分的牙周评估与个体化方案设计是实现牙周健康与正畸治疗目标平衡的关键。文章从牙周状况评估、基于牙槽骨吸收特征的矫治目标设定、拔牙决策与牙周手术时机、矫治器选择、年龄差异的临床考量、多学科协作及治疗后保持等方面，系统阐述年轻化和老龄化牙周炎患者正畸与牙周联合治疗的要点，为临床医生提供参考。

关键词: 牙周炎, 正畸治疗, 年轻患者, 中老年患者, 个体化治疗