Kanchanakamol U, Tuongratanaphan S, Tuongratanaphan S, Lertpoonvilaikul W, Chittaisong C, Pattanaporn K, Navia J M, Davies G N
Department of Community Dentistry, Faculty of Dentistry, Chiang Mai University, Thailand.
Community Dent Health. 1996 Dec;13(4):204-7.
The prevalence of developmental enamel defects and dental caries was assessed in 344 Karen children aged 1-4 years who were chronically (70 per cent) and acutely malnourished (9.3 per cent) The teeth were cleaned with gauze to facilitate detection of hypoplastic lesions on labial surfaces of maxillary incisors. At least one tooth with defective enamel was seen in 31.9 per cent of children, while enamel hypoplasia was present in 22.7 per cent of children. Enamel defects were found in 21.2 per cent of teeth, with hypoplasia and opacities occurring in 14.6 and 6.6 per cent of teeth, respectively. Gender did not alter the prevalence of defects. The upper central incisors were affected more than lateral incisors. The prevalence of dental caries was 31.9 per cent with a mean dt of 1.1. The prevalence of caries associated with enamel hypoplasia was significantly greater than that associated with opacities and sound enamel (P < 0.0005).
对344名1至4岁的克伦族儿童的发育性釉质缺陷和龋齿患病率进行了评估，这些儿童长期营养不良（70%）和急性营养不良（9.3%）。用纱布清洁牙齿，以便于检测上颌中切牙唇面的发育不全病变。31.9%的儿童至少有一颗牙齿釉质有缺陷，而22.7%的儿童存在釉质发育不全。21.2%的牙齿发现有釉质缺陷，其中发育不全和不透明分别占牙齿的14.6%和6.6%。性别并未改变缺陷的患病率。上颌中切牙比侧切牙受影响更大。龋齿患病率为31.9%，平均龋失补牙数为1.1。与釉质发育不全相关的龋齿患病率显著高于与不透明和健康釉质相关的龋齿患病率（P<0.0005）。
