采用文字、电化、语言三种健康教育形式，对小学生进行半年口腔卫生知识普及教育，并以教育前后牙菌斑指数测定为效果比较依据，观察到经过三种形式的教育，特别是语言教育，有明显改善学生口腔卫生的效果。 Using three forms of health education, including text, electro-chemical and language, primary school students were educated about oral hygiene knowledge for half a year, and based on the comparison of dental plaque index before and after education, it was observed that after three forms of education, especially language education, There is a clear improvement in the effectiveness of oral hygiene.