Jones S G, Nunn J H
North Lakeland Healthcare, Carlisle, UK.
Community Dent Health. 1995 Sep;12(3):161-6.
A study of the dental health of 135 3-year-old children, with reference to social class group, was undertaken in East Cumbria District between September and December 1993. Caries free subjects numbered 110 (81.5 per cent), the mean number of decayed, missing, and filled teeth was 0.59; the value of the decayed component of the dmft index was 0.49. Caries experience was confined to 25 (18.5 per cent) individuals whose mean dmft was 3.20, seven of these subjects experienced rampant decay to the maxillary incisor teeth and three had received a dental general anaesthetic. An inverse relationship was demonstrated between dental caries and social class. Trauma to the maxillary incisors had occurred in 17 (12.6 per cent) children, with discolouration and fracture of the enamel and dentine the most prevalent types of injuries sustained. A relatively high proportion of the subjects, 39 (28.9 per cent), had experienced erosion to palatal surfaces of the maxillary incisors. The most prevalent type of erosion was that involving both enamel and dentine. Only 14 (10.4 per cent) children examined used fluoride supplements in this low-fluoride area; 98 (72.6 per cent) subjects reported registration with a dentist.
1993年9月至12月期间，在东坎布里亚区对135名3岁儿童的牙齿健康状况进行了研究，并参考了社会阶层分组。无龋儿童有110名（81.5%），龋失补牙的平均数为0.59；dmft指数中龋坏部分的值为0.49。患龋情况仅限于25名（18.5%）个体，其平均dmft为3.20，其中7名受试者上颌切牙发生猖獗龋，3名接受过全身麻醉下的牙科治疗。研究表明龋齿与社会阶层之间存在反比关系。17名（12.6%）儿童上颌切牙受过外伤，最常见的损伤类型是釉质和牙本质变色及骨折。相当比例的受试者，即39名（28.9%），上颌切牙腭面有牙釉质侵蚀。最常见的侵蚀类型是涉及釉质和牙本质的侵蚀。在这个低氟地区，接受检查的儿童中只有14名（10.4%）使用氟补充剂；98名（72.6%）受试者报告已在牙医处登记。
