Abstract: Objective To analyze the pit and fissure selant in recent years of Qingdao city,and to provide some interventions to protect the health of the first molars. Method In 2013-2015,the examination of the first molars of students (7~9 years old)in five schools was taken,to record and analyze the first permanent molars′ health,the pit and fissure sealant. Results In 2013-2015,the first molars caries prevalence rates were 17.36%,15.72%,10.94% respectively,and there was no statistical difference.In 2013-2015,the rate of selant was 69.53%,74.31%,79.09% respectively,and there were significant differences(χ²=15.954,P<0.05).There was no significant difference in caries rate in each year.There was statistical difference in the rate of pit and fissure sealant.There was no statistical difference between the five schools.The sealant agreed rate increased year by year. Conclusions The caries rate of the first permanent molars in Qingdao Shibei district is higher,so the prevention and health care work still need to be strengthened.Parents′ recognition of pit and fissure sealant has increased.

Key words: the pit and fissure selant, the first permanent molars, children

摘要： 目的 研究分析二年级学生六龄齿的健康状况,以了解六龄齿的保健现状与需求,更好的完善儿童口腔健康保障项目。方法 按照《青岛市儿童口腔疾病基本预防项目实施方案》,分别在2013-2015年对于市北区五所小学的二年级学生(7~9岁)进行检查,记录分析六龄齿健康及窝沟封闭相应情况。结果 2013年六龄齿牙位患龋率为17.36%,窝沟封闭率为69.53%;2014年患龋率为15.72%,窝沟封闭率为74.31%;2015年患龋率为10.94%,窝沟封闭率为79.09%;各年度六龄齿患龋率差异无统计学意义,窝沟封闭率差异有统计学意义(χ²=15.954,P<0.05)。市北区五所小学之间的六龄齿患龋率和窝沟封闭率无统计学差异。随着窝沟封闭项目的实施和普及教育,窝沟封闭率逐年上升。结论 青岛市北区二年级学生的六龄齿患龋率较高,对于提高家长早期窝沟龋的预防保健工作仍需加强宣传指导。

关键词: 窝沟封闭, 六龄齿, 儿童