Tagliaferro E P S, Meneghim M C, Ambrosano G M B, Pereira A C, Sales-Peres S H C, Sales-Peres A, Bastos J R M
Faculdade do Odontologia de Piraciaba, UNICAMP, Piracicaba, Brazil.
Int Dent J. 2008 Apr;58(2):75-80. doi: 10.1111/j.1875-595x.2008.tb00179.x.
To compare caries prevalence and severity, as well as the disease distribution in the permanent dentition of 12-year-old schoolchildren in Bauru, Brazil, from 1976 to 2006.
Probabilistic samples were obtained in six surveys, from 1976 to 2006, which were conducted by calibrated examiners, following the same protocol. For data analysis, the DMFT (decayed, missing and filled teeth), Significant Caries Index (SiC Index), percentage of caries-free children, Gini Coefficient and Care Index were determined.
The means (SD) for DMFT were 9.89 (3.96), 6.98 (3.80), 4.30 (3.11), 4.29(3.44), 1.53(2.07), and 0.90(1.53) in 1976, 1984, 1990, 1995, 2001 and 2006, respectively. Except for years 1990 and 1995 and also for 2001 and 2006, there were statistically significant differences in mean DMFT among the surveys (p < 0.05). The number of caries-free children (DMFT=0), which has significantly increased over the years (p < 0.001), ranged from 0.4% in 1976 to 63.8% in 2006. The SiC Indexes were 14.34, 11.42, 7.74, 8.06, 3.89, and 2.63; the Care Index were 31.9%, 57.4%, 68.7%, 50.5%, 66.4%, and 56.3%; and the Gini Coefficients were 0.23, 0.30, 0.39, 0.43, 0.66, and 0.76 in the surveys.
Dental caries experience and prevalence in 12-year-old schoolchildren have declined significantly during the last 30 years in Bauru.
比较1976年至2006年巴西包鲁市12岁学童恒牙列的龋病患病率、严重程度及疾病分布情况。
在1976年至2006年期间进行的六项调查中获取概率样本，由经过校准的检查人员按照相同方案进行。数据分析时，确定了龋失补指数（DMFT）、龋均指数（SiC指数）、无龋儿童百分比、基尼系数和护理指数。
1976年、1984年、1990年、1995年、2001年和2006年的DMFT均值（标准差）分别为9.89（3.96）、6.98（3.80）、4.30（3.11）、4.29（3.44）、1.53（2.07）和0.90（1.53）。除1990年和1995年以及2001年和2006年外，各次调查间的DMFT均值存在统计学显著差异（p < 0.05）。无龋儿童（DMFT = 0）的数量多年来显著增加（p < 0.001），从1976年的0.4%增至2006年的63.8%。各次调查的SiC指数分别为14.34、11.42、7.74、8.06、3.89和2.63；护理指数分别为31.9%、57.4%、68.7%、50.5%、66.4%和56.3%；基尼系数分别为0.23、0.30、0.39、0.43、0.66和0.76。
在过去30年里，包鲁市12岁学童的龋病患病情况和患病率显著下降。
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