９２名中学生刷牙知识与行为比较广东省肇庆市第一人民医院（５２６０２１）程肇祺谢卫江刷牙情况的调查多是采用问卷方式，其调查结果容易受到多种因素的影响。为了避免这些因素的影响，确保数据资料的准确性，本文除了采用问卷方式进行调查外，还采用现场调查方式分析调... 92 secondary school students brush their teeth knowledge and behavior Zhaoqing City, Guangdong Province First People's Hospital (526021) Cheng Zhaoqi Xie Weijiang Most of the investigation of brushing is the use of questionnaires, the survey results are vulnerable to many factors. In order to avoid the influence of these factors and ensure the accuracy of the data, this paper uses the method of on-site investigation to analyze and survey in addition to the questionnaire ...