牙龈炎是青少年患病率较高的疾病。据统计,我国城市学生的患病率为30～89.44％,如不及时治疗将发展为牙周病,造成严重后果。如何防治牙龈炎的发生与发展,采用简便的易于推广的防治措施,是我们学校医务工作者的一项重要工作。为此,我们设计了本组实验,用洗必太和多贝尔氏液含漱一个月,以观察其对牙龈炎的防治作用。1 材料与方法选择我校在校大学生(18～22岁)中自愿配合者96名,按宿舍居住距离随机分成5个组。每组17～21人,指定2名同学督促执行,医生定期检查监督,为期一个月。在试验 Gingivitis is a disease with a high prevalence in adolescents. According to statistics, the prevalence of urban students in our country is 30 ~ 89.44%. If not treated in time, it will develop into periodontal disease with serious consequences. How to prevent the occurrence and development of gingivitis, the use of easy to promote prevention and control measures, is our school medical workers an important task. To this end, we designed this group of experiments, using chlorhexidine and Dorbel’s solution for a month to observe its prevention and treatment of gingivitis. 1 Materials and Methods 96 college students (18 ~ 22 years old) who volunteered to cooperate in our school were randomly divided into 5 groups according to the living distance of the dormitory. Each group of 17 to 21 people, designated two students to supervise the implementation of regular inspections and supervision of doctors for a period of one month. In test