Kabue M M, Moracha J K, Ng'ang'a P M
Dental Surgeon, Kenyatta National Hospital, Nairobi, Kenya.
East Afr Med J. 1995 Apr;72(4):210-2.
The prevalence of malocclusion in the deciduous dentition of 221 children aged 3-6 years in Nairobi, Kenya is reported. The children were drawn from six randomly selected preprimary schools (kindergarten, nurseries, and pre-units) from different areas of the city. Overall, 51% of the children were found to have some form of malocclusion. Maxillary overjet accounted for 13%, deep bite 13%, dental midline displacement 6%, frontal openbite 12% and anterior crossbite 5%. Anthropoid spaces were observed in 85% of the children, while over 60% had spacing in the incisor region. Straight terminal plane of the deciduous second molars was diagnosed in 53% of the children, mesial step in 43% and distal step occlusion in one percent of the children. The results suggest a need for interceptive orthodontic treatment in some of the children.
报告了肯尼亚内罗毕221名3至6岁儿童乳牙列错牙合的患病率。这些儿童来自该市不同地区随机挑选的六所学前学校（幼儿园、托儿所和学前班）。总体而言，发现51%的儿童有某种形式的错牙合。上颌前突占13%，深覆牙合占13%，牙中线移位占6%，前牙开牙合占12%，前牙反牙合占5%。85%的儿童观察到类人猿间隙，而超过60%的儿童在切牙区有间隙。53%的儿童乳牙第二磨牙为直终末平面，43%为近中阶梯，1%为远中阶梯咬合。结果表明，部分儿童需要进行阻断性正畸治疗。
