Carvalho J C, D'Hoore W, Van Nieuwenhuysen J P
School of Dentistry, Catholic University of Louvain, Brussels, Belgium.
Community Dent Oral Epidemiol. 2004 Aug;32(4):277-82. doi: 10.1111/j.1600-0528.2004.00166.x.
(1) To investigate changes in caries prevalence in the primary dentition of children resident in Brussels, Belgium between 1983 and 1998, (2) to analyse associations between changes in caries and children's socioeconomic and ethnic aspects.
In the Brussels region, children in the first grade at the same schools were sampled in cohort 1983 (n = 396) and cohort 1998 (n = 473). Caries experience of Belgian and non-Belgian nationals was summarized in dmf scores. The socioeconomic status of the children was established based on their parents' education and profession. The children were categorized in eight subgroups in relation to their socioeconomic status, ethnic origin and cohort (SESEC subgroups).
The percentage of caries-free children increased significantly from 31.5% to 47.5%. A reduction was observed in the dmft scores from 3.9 to 2.3 (P < 0.001) and in the dmfs scores from 6.9 to 5.0 (P < 0.001). The odds ratio of being caries-free was 2.5 times higher for privileged children and 2.3 times higher for children belonging to cohort 1998. The ANCOVA analyses revealed that most of the SESEC subgroups showed significant reduction in dmft scores from 1983 to 1998 (P < 0.003).
Children resident in Brussels showed caries decline in their primary dentition over 15 years. Diversity in caries decline was associated with children's socioeconomic status and ethnic origin.
（1）调查1983年至1998年间比利时布鲁塞尔儿童乳牙列龋齿患病率的变化；（2）分析龋齿变化与儿童社会经济和种族因素之间的关联。
在布鲁塞尔地区，对1983年队列（n = 396）和1998年队列（n = 473）中同一学校的一年级儿童进行抽样。用dmf分数总结比利时和非比利时国籍儿童的龋齿经历。根据孩子父母的教育程度和职业确定其社会经济地位。根据孩子的社会经济地位、种族和队列将其分为八个亚组（SESEC亚组）。
无龋儿童的百分比从31.5%显著增加到47.5%。dmft分数从3.9降至2.3（P < 0.001），dmfs分数从6.9降至5.0（P < 0.001）。特权儿童无龋的优势比高2.5倍，1998年队列中的儿童高2.3倍。协方差分析显示，从1983年到1998年，大多数SESEC亚组的dmft分数显著降低（P < 0.003）。
居住在布鲁塞尔的儿童在15年中乳牙列龋齿患病率下降。龋齿患病率下降的差异与儿童的社会经济地位和种族有关。
