With the increasing number of the orthodontic patients, the relationship between periodontal and orthodontic becomes increasingly close. Orthodontic treatment can improve periodontal status, but the adverse clinical problems of periodontal tissue during orthodontic treatment are relatively common. In this paper, we discuss the problems of soft tissue, including causes, prevention, and treatment of gingivitis, gingival enlargement, gingival recession, and gingival invagination in orthodontic treatment.
牙周健康与正畸的关系密不可分。良好的正畸治疗可以改善患者的口颌系统功能，排列整齐的牙齿有利于口腔卫生清洁，降低龋病及牙周病的发生风险；但是如果正畸治疗过程忽略定期牙周评估，也可能出现牙周软硬组织不良等临床问题。本文通过阐述正畸治疗中常见的牙周软组织异常，主要包括牙龈炎、牙龈肥大、牙龈退缩、牙龈内陷的发生原因、预防及处理原则，以期保护正畸患者的牙周健康，辅助正畸治疗方案的顺利实施。.
Keywords: gingival enlargement; gingival invagination; gingival recession; gingivitis; orthodontic treatment; principle of treatment.