随着固定正畸技术的普及,正畸装置给患者带来的影响越来越受关注,牙龈炎就是其中之一。为了找出牙龈炎的主要原因和预防措施,本文对100例固定正畸牙龈炎患者进行分析,其结果发现主要原因是患者口腔卫生状况不佳和患者口内矫治装置的不良刺激。因此,引导患者保持良好的口腔卫生和尽量避免矫治装置对牙龈的刺激是控制牙龈炎发生的关键。 With the popularity of fixed orthodontic techniques, the impact of orthodontic devices on patients is receiving increasing attention, and gingivitis is one of them. In order to find out the main causes and preventive measures of gingivitis, 100 cases of orthodontic patients with gingivitis were analyzed. The main reason was found to be poor oral hygienic condition and poor stimulation of the patient’s oral appliance. Therefore, to guide patients to maintain good oral hygiene and try to avoid orthodontic device to stimulate the gums is the key to control the occurrence of gingivitis.