Mestriner Soraya Fernandes, Pardini Luiz Carlos, Mestriner Wilson Júnior
University of Franca (UNIFRAN).
J Appl Oral Sci. 2006 Jun;14(3):167-71. doi: 10.1590/s1678-77572006000300004.
The pattern of development of carious lesions has changed. The carious lesion has been progressive and reaches the dentin without showing alterations in the clinical aspects.
To determine the prevalence of caries in 12-year-old students in the city of Franca - São Paulo, Brazil, during the year of 2003, and to evaluate the additional value of bitewing radiograph to detect hidden carious lesions in permanent molar dentin.
A probabilistic sample composed of two hundred and fifty six (256) students, from public and private schools, was submitted to a cross-sectional study through examination by a calibrated examiner, in order to detect the caries prevalence, using the methodology recommended by the World Health Organization (WHO). For 66% of the sample, bitewing radiographs of the permanent molar region were obtained. The images were analyzed by a calibrated examiner, who established the presence of hidden caries in teeth with radiolucency in dentin, yet considered healthy in the epidemiological survey.
The prevalence of dental caries in epidemiological exam without (WHO) and with (WHO/R) the inclusion of hidden caries lesion was 54% and 64%, and the DMFT index was 1.73 and 1.92 respectively.
Utilization of the method of bitewing radiographic diagnosis significantly increased (p<0.001) the prevalence of caries in the studied population.
龋损的发展模式已经发生了变化。龋损呈进行性发展，在临床外观未出现改变的情况下就已累及牙本质。
确定2003年巴西圣保罗州弗朗卡市12岁学生的龋齿患病率，并评估咬合翼片在检测恒牙磨牙牙本质隐匿性龋损方面的附加价值。
采用概率抽样法，从公立和私立学校选取了256名学生作为样本，由经过校准的检查者按照世界卫生组织（WHO）推荐的方法进行检查，以检测龋齿患病率，开展横断面研究。对66%的样本获取了恒牙磨牙区域的咬合翼片。图像由经过校准的检查者进行分析，检查者确定牙本质出现透射区但在流行病学调查中被视为健康的牙齿中隐匿性龋的存在情况。
在不纳入（WHO）和纳入（WHO/R）隐匿性龋损的情况下，流行病学检查中的龋齿患病率分别为54%和64%，DMFT指数分别为1.73和1.92。
使用咬合翼片放射诊断方法显著提高了（p<0.001）研究人群中的龋齿患病率。
