Clark D C, Berkowitz J
Department of Clinical Dental Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, Canada.
J Public Health Dent. 1997 Summer;57(3):171-5. doi: 10.1111/j.1752-7325.1997.tb02969.x.
The purpose of this investigation was to determine the prevalence of sound, decayed, filled, and sealed permanent tooth surfaces for children and adolescents from three fluoridated communities in British Columbia and to develop a predictive model of sealant use that included the dental caries status of tooth surfaces.
Children in grades 2 and 3 (n = 2,715) and adolescents in grades 8 and 9 (3,317) were surveyed to determine the prevalence of sound, decayed, filled, and sealed permanent tooth surfaces. The DMFS index, modified to include incipient (D1) and cavitated (D2) lesions, was used to measure the status of all tooth surfaces. The prevalence of D1D2MF and sealed tooth surfaces was estimated by age group and tooth type. Logistic regression models were developed to analyze the association between a number of independent variables and sealant use.
About 60 percent of surveyed students had one or more sealants present, with a mean of 3.2 sealants per subject. Of all pit and fissure surfaces on permanent first molars, 23.4 percent and 20.1 percent were sealed for the 11 years and younger and 12 years and older age groups, respectively. For these same two age groups, the percentages of pit and fissure surfaces that were decayed and filled were 6.7 percent and 19.7 percent, respectively. For both age groups combined, 10.8 percent and 23.7 percent of all pit and fissure surfaces on second molars and premolars, respectively, were sealed. The prevalence of decayed and filled pit and fissure surfaces was 5.6 percent and 1.8 percent, respectively, for second molars and premolars. Premolars were being sealed at a rate of 13 to 1 compared to the number of decayed and filled surfaces. Logistic regression failed to identify meaningful predictors of sealant use.
Results from this study found an increase in the prevalence of sealants in the three communities surveyed, yet failed to identify criteria used by dentists or auxiliaries when making decisions about sealant placement. Professional education in the appropriate use of sealants may be necessary.
本调查旨在确定不列颠哥伦比亚省三个氟化社区儿童和青少年恒牙完好、龋坏、充填及封闭牙面的患病率，并建立一个包括牙面龋病状况的窝沟封闭剂使用预测模型。
对二年级和三年级学生（n = 2715）以及八年级和九年级青少年（3317）进行调查，以确定恒牙完好、龋坏、充填及封闭牙面的患病率。采用经修改后纳入早期（D1）和有龋洞（D2）病变的DMFS指数来衡量所有牙面的状况。按年龄组和牙型估算D1D2MF及封闭牙面的患病率。建立逻辑回归模型以分析多个自变量与窝沟封闭剂使用之间的关联。
约60%的受访学生有一处或多处窝沟封闭剂，平均每人3.2处。在恒牙第一磨牙的所有窝沟面中，11岁及以下和12岁及以上年龄组分别有23.4%和20.1%进行了封闭。对于这两个年龄组，窝沟面龋坏和充填的百分比分别为6.7%和19.7%。两个年龄组合计，第二磨牙和前磨牙所有窝沟面分别有10.8%和23.7%进行了封闭。第二磨牙和前磨牙窝沟面龋坏和充填的患病率分别为5.6%和1.8%。前磨牙封闭率与龋坏和充填面数量之比为13比1。逻辑回归未能确定窝沟封闭剂使用的有意义预测因素。
本研究结果发现，在所调查的三个社区中窝沟封闭剂的患病率有所上升，但未能确定牙医或辅助人员在决定是否进行窝沟封闭时所采用的标准。可能需要开展关于正确使用窝沟封闭剂的专业教育。
