Department of Health Education, School of Medical Sciences, Tarbiat Modares University, Tehran, I.R.Iran.
Med Oral Patol Oral Cir Bucal. 2011 Sep 1;16(6):e822-7. doi: 10.4317/medoral.17074.
To describe the status of dental caries in a sample of Iranian adolescents aged 14 to 18 years in Qazvin, and to identify caries-related factors affecting this group.
Qazvin was divided into three zones according to socio-economic status. The sampling procedure used was a stratified cluster sampling technique; incorporating 3 stratified zones, for each of which a cluster of school children were recruited from randomly selected high schools. The adolescents agreed to participate in the study and to complete a questionnaire. Dental caries status was assessed in terms of decayed teeth (DT), filled teeth (FT) and decayed, missing and filled teeth (DMFT). A multivariate regression analysis was used to determine statistically significant associations between DMFT and other variables.
The study sample comprised 380 adolescents, 188 (49.5%) being male. The mean age of the adolescents was 15.42 (SD= 1.1) years, and the mean DMFT was 2.61 (SD=1.89). Boys had significantly higher DMFT scores than girls (P <0.05). The multivariate regression analyses revealed a significant relation between high DMFT scores and such variables as increasing age, male gender, lower levels of parental education, higher family income, lower frequency of tooth brushing and dental flossing, having a history of no visits to the dentist, and bad perception of own oral health.
The present study reveals that Iranian adolescents have a poor oral hygiene, as very few subjects brush and floss their teeth on a regular basis. Although the incidence of caries was found to be moderate, it was influenced by demographic factors such as age and gender in addition to socio-behavioral variables such as family income, the level of education attained by parents, the frequency of dental brushing and flossing, and both the frequency and type of visit to a dentist.
描述伊朗青少年（14-18 岁）的龋齿状况，并确定影响该人群龋齿的相关因素。
根据社会经济地位，将卡齐万市分为三个区域。采用分层聚类抽样技术进行抽样，包括 3 个分层区域，每个区域从随机选择的高中招募一组学生。青少年同意参与研究并完成问卷。龋齿状况以龋齿数（DT）、补牙数（FT）和龋齿、缺失和补牙数（DMFT）评估。采用多元回归分析确定 DMFT 与其他变量之间的统计学显著关联。
研究样本包括 380 名青少年，其中 188 名（49.5%）为男性。青少年的平均年龄为 15.42 岁（标准差=1.1），平均 DMFT 为 2.61（标准差=1.89）。男孩的 DMFT 得分明显高于女孩（P <0.05）。多元回归分析显示，DMFT 评分与年龄、性别、父母教育程度较低、家庭收入较高、刷牙和使用牙线频率较低、未定期看牙医以及对口腔健康的不良认知等变量之间存在显著关系。
本研究表明，伊朗青少年口腔卫生状况较差，很少有定期刷牙和使用牙线的习惯。尽管龋齿的发病率中等，但它受到年龄和性别等人口统计学因素以及家庭收入、父母教育程度、刷牙和使用牙线频率、看牙医的频率和类型等社会行为变量的影响。
