黔东南州初一年级学生恒上前牙邻面龋影响因素调查

Proximal-surface caries on smooth surfaces of maxillary permanent teeth in junior school students in Qiandongnan

目的了解黔东南州初一年级学生恒上前牙邻面龋的致龋因素,为儿童龋病防控提供依据。方法在黔东南州16个县(市)初中一年级学生中随机抽取2 467名进行问卷调查及临床检查,并进行病例对照研究,通过Logistic回归分析筛选出恒上前牙邻面龋的保护性因素及危险因素。结果有90名学生患有恒上前牙邻面龋,患龋率为3.65%,其中男生为3.21%,女生为4.12%,差异无统计学意义(χ2=1.461,P>0.05);各县市恒上前牙邻面龋患龋率差异有统计学意义(χ2=41.650,P<0.01)。上前牙各牙位中中切牙最易患龋,占81.73%;其次为侧切牙,占16.75%;尖牙最少,占1.52%。多因素Logistic回归分析显示,每次刷牙时间为保护因素(OR=0.556,P<0.05),每周饮用酸性饮料的次数、甘蔗上市期间每周吃甘蔗的次数、其他牙患龋数是为危险因素(OR值分别为1.229,1.410,1.226,P值均<0.05)。结论进食甜食及饮用酸性饮料的频率越高,直接食用甘蔗的次数越多越容易患恒上前牙邻面龋,龋病易患者同样容易患恒上前牙邻面龋,能够有效清除邻面菌斑的口腔清洁措施能够预防恒上前牙邻面龋的发生。

Objective To evaluate proximal-surface caries on smooth surfaces of maxillary permanent teeth in junior school students in Qiandongnan. Methods Questionnaire survey and oral examination were conducted among 2467 students in grade one of junior schools in 16 counties（ cities） in Qiandongnan by using cluster sampling method. Logistic regression analysis was used to assess protective and risk factors for proximal surface caries in the permanent maxillary anterior teeth. Results A total of 90（ 3. 65%） students suffered from proximal surface caries in the permanent maxillary anterior teeth of all the students was, with boys being 3. 21% and of girls being 4. 12%. Significant differences of caries rate among different counties was found（ χ2= 41. 650, P〈0. 01）. In all the permanent maxillary anterior teeth, the central incisor teeth were most susceptible to caries, accounting for81. 73%, followed by lateral incisor（ 16. 75%）, canine（ 1. 52%）. Brushing time, family members＇ caries were protective factors（ OR = 0. 507, 0. 480, P〈0. 05）. Conclusion The occurrence of the caries in the permanent maxillary anterior teeth is very common among junior students in Qiandongnan.