Pereira Stela Márcia, Tagliaferro Elaine Pereira da Silva, Ambrosano Gláucia Maria Bovi, Cortelazzi Karine Laura, Meneghim Marcelo de Castro, Pereira Antonio Carlos
Department of Community Dentistry, Piracicaba Dental School, State University of Campinas (UNICAMP), Brazil.
Oral Health Prev Dent. 2007;5(4):299-306.
This study attempts to describe the caries experience in 12-year-old schoolchildren in Piracicaba, Brazil, and to verify the relationship between the disease and socioeconomic factors, and behavioural variables related to oral health.
The random sample consisted of 939 individuals from public and private schools in Piracicaba, São Paulo State, Brazil, in 2005. A calibrated dentist performed the examination in an outdoor setting, under natural light, using CPI probes and mirrors, following WHO recommendations. A questionnaire was sent to the parents to collect information on socioeconomic level and behavioural variables related to dental health. The mean number of decayed, missing and filled permanent teeth and surfaces (DMFT/DMFS), the Care Index and the SiC (Significant Caries Index) were determined. Multiple logistic regression analyses using the stepwise procedure were performed in order to identify the risk indicators for the DMFT and for the polarisation group.
The DMFT and the SiC Index were 1.32 (SD = 1.92) and 3.52 (SD = 1.86), respectively, and the Care Index was 75.0%. The regression models showed that females and children with either low family income or low education level of the fathers were prone to have caries or take part in the polarisation group.
The 12-year-old individuals from Piracicaba presented a low prevalence of caries. Nevertheless, those high caries-level individuals showed moderate caries experience. The socioeconomic and the behavioural variables related to dental health were risk indicators of caries in permanent dentition not only for the entire sample, but also for the polarisation group.
本研究旨在描述巴西皮拉西卡巴市12岁学童的龋病经历，并验证该疾病与社会经济因素以及与口腔健康相关的行为变量之间的关系。
2005年，随机样本包括来自巴西圣保罗州皮拉西卡巴市公立和私立学校的939名个体。一名经过校准的牙医在户外自然光下，按照世界卫生组织的建议，使用社区牙周指数（CPI）探针和口镜进行检查。向家长发送问卷，收集有关社会经济水平和与牙齿健康相关的行为变量的信息。确定恒牙龋、失、补牙及牙面的平均数（DMFT/DMFS）、护理指数和显著龋指数（SiC）。采用逐步法进行多元逻辑回归分析，以确定DMFT和极化组的风险指标。
DMFT和SiC指数分别为1.32（标准差=1.92）和3.52（标准差=1.86），护理指数为75.0%。回归模型显示，女性以及家庭收入低或父亲教育水平低的儿童更容易患龋或参与极化组。
皮拉西卡巴市12岁个体的龋病患病率较低。然而，那些高龋水平个体的龋病经历为中度。与牙齿健康相关的社会经济和行为变量不仅是整个样本，也是极化组恒牙龋病的风险指标。
