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目的分析甘肃省靖远县小学生龋齿流行趋势和不同特征及恒牙、乳牙龋患程度,为评价和促进靖远县的小学生防龋工作提供依据。方法根据小学生第一恒磨牙萌出情况,选择靖远县4所小学7~10岁的2 102名小学生,由口腔专业医师按照世界卫生组织的诊断标准及方法进行口腔检查。结果口腔检查的2 102名小学生中,7~10岁小学生第一恒磨牙患龋率城乡结合部(6.36%)高于城区(4.37%),差异有统计学意义(χ~2=4.11,P<0.05);城区小学生恒牙龋齿填充构成比高于城乡结合部小学生,差异有统计学意义(χ~2=7.92,P<0.05);城区和城乡结合部小学生乳牙患龋率分别为66.58%和67.15%,差异无统计学意义(χ~2=0.08,P>0.05);女生乳牙患龋率(67.12%)高于男生(66.42%),差异有统计学意义(χ~2=30.06,P<0.05);不同年龄组小学生第一恒磨牙萌出率(χ~2=333.51)、乳牙完整率(χ~2=6.75)均随年龄增加逐渐增高,差异有统计学意义(均P<0.05);第一恒磨牙萌出率性别分布差异无统计学意义(χ~2=3.04,P>0.05);乳牙完整率女生高于男生,差异有统计学意义(χ~2=47.09,P<0.05)。结论靖远县小学生龋患率及龋齿填充情况不容乐观,应加大龋齿防控力度,建立健全覆盖全县的学校口腔保健网,开展综合干预。
Objective To analyze the prevalence and characteristics of dental caries among primary school students in Jingyuan County, Gansu Province, and the degree of dental caries among permanent teeth and deciduous teeth in primary school students in Jingyuan County, Gansu Province. Methods Based on the eruption of the primary molars of primary school students, 2 102 primary school students from 7 to 10 years old in 4 primary schools in Jingyuan County were selected and their oral examinations were conducted by the oral specialists in accordance with the diagnostic criteria and methods of the World Health Organization. Results Among the 2 102 pupils examined, the prevalence of dental caries at the primary molar of 7 ~ 10 years old was 6.36% higher than that of the urban area (4.37%) (χ ~ 2 = 4.11, P (Χ ~ 2 = 7.92, P <0.05). The dental caries prevalence of primary teeth of primary school students in urban area and urban-rural areas were 66.58% And 67.15%, respectively. There was no significant difference between them (χ ~ 2 = 0.08, P> 0.05). The prevalence of dental caries among girls was 67.12% higher than that of boys (66.42%), the difference was statistically significant (Χ ~ 2 = 333.51), complete rate of deciduous teeth (χ ~ 2 = 6.75) increased with increasing age, the difference was statistically significant (P <0.05, P <0.05) (Χ ~ 2 = 3.04, P> 0.05). There was a significant difference in the rate of complete deciduous teeth between girls and boys (χ ~ 2 = 47.09, P <0.05) ). Conclusions The caries prevalence rate and dental caries filling in primary school students in Jingyuan County are not optimistic. Prevention and control of dental caries should be strengthened and a comprehensive oral health care network covering the whole county should be established and comprehensively interfered with.