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了解中小学生口腔卫生状况,掌握其口腔疾病的发病原因及规律,是开展中小学生口腔疾病防治和口腔卫生保健工作的基础。为此,我们于1990年9月,采用“牙菌斑指数法”对我市557名中小学生进行了口腔卫生状况调查评价及分析。1 调查对象选小学每年级各一班,中学初1～3年级及高中1～3年级各一班的男女学生。
To understand the oral hygiene status of primary and middle school students and to grasp the causes and rules of their oral diseases is the basis for the prevention and control of oral diseases and oral hygiene in primary and middle school students. To this end, we in September 1990, the “plaque index method” 557 primary and secondary students in our city conducted oral health survey evaluation and analysis. 1 The survey participants selected primary and secondary school students in each grade, grade 1 to grade 3 in middle school and grade 1 to grade 3 in high school.