Abdul Razak I, Nik Hussein N N
Dent J Malays. 1986 May;9(1):23-8.
Enamel defects were studied in a group of 11-12 year-old children in a fluoridated area using the DDE index. The mouth prevalence of this condition was 72.5 per cent with a tooth prevalence of 40.4 per cent. Enamel opacities accounted for 96.5 per cent of the total condition of which the diffuse patchy type predominates. The defects on the affected posterior teeth occurred most commonly on both the buccal and lingual/palatal surfaces, with most defects being located in the incisal one-half, gingival one-half and occlusal simultaneously. In the affected incisors, the highest proportion of defects affected the buccal surface only, with the most frequent location being the incisal one-half and gingival one-half simultaneously. In 20.9 per cent of the affected subjects, there was a 100 per cent tooth involvement.
在一个使用DDE指数的氟化地区，对一组11至12岁的儿童进行了牙釉质缺陷研究。这种情况的口腔患病率为72.5%，牙齿患病率为40.4%。牙釉质混浊占总情况的96.5%，其中以弥漫性斑片状类型为主。受影响的后牙上的缺陷最常见于颊面和舌面/腭面，大多数缺陷同时位于切缘一半、牙龈一半和咬合面。在受影响的切牙中，最高比例的缺陷仅影响颊面，最常见的位置是同时位于切缘一半和牙龈一半。在20.9%的受影响受试者中，牙齿受累率为100%。
