Hansen B F, Gjermo P, Bellini H T, Ihanamaki K, Saxén L
Department of Oral Diagnosis, University of Oslo, Norway.
Int Dent J. 1995 Feb;45(1):54-61.
In a multinational study of alveolar bone loss, bite-wing radiographs of 8,703, 15-17-year-old adolescents from 18 centres in 16 countries were examined. Of these, 13 per cent were excluded as non-informative because of bad quality radiographs or missing first molars. Bone loss was a common finding globally (mean prevalence rate of subjects with bone loss 10.2 per cent), although there were great geographical variations. The bone loss was mostly horizontal, infrabony lesions were rare. The most frequently affected sites were the mesial aspects of the first maxillary molars followed by the distal aspects of the same teeth. Twenty-three subjects from the Finnish bite-wing study were examined for clinical conditions. When subjects with and without radiographic bone loss were compared, no statistically significant differences in the mean Gingival Index were found. The subjects were re-examined 5 years later. The gingival condition and the oral hygiene tended to be better at the end of the period than they had been at the start, but it was only in males that the differences were statistically significant. Periodontal destruction cannot be predicted from the gingival condition, but bite-wing radiographs of adolescents seem to be a valuable diagnostic tool for early detection of periodontal bone loss.
在一项关于牙槽骨丧失的跨国研究中，对来自16个国家18个中心的8703名15 - 17岁青少年的咬合翼片进行了检查。其中，13%因X线片质量差或第一磨牙缺失而被排除，被视为无效数据。牙槽骨丧失在全球范围内是一个常见现象（牙槽骨丧失受试者的平均患病率为10.2%），尽管存在很大的地域差异。牙槽骨丧失大多为水平型，骨下袋病变罕见。最常受累的部位是上颌第一磨牙的近中面，其次是同一牙齿的远中面。对芬兰咬合翼片研究中的23名受试者进行了临床状况检查。比较有和没有影像学牙槽骨丧失的受试者时，发现平均牙龈指数无统计学显著差异。5年后对这些受试者进行了复查。在这一阶段结束时，牙龈状况和口腔卫生状况往往比开始时更好，但只有男性的差异具有统计学意义。牙周破坏无法从牙龈状况预测，但青少年的咬合翼片似乎是早期检测牙周骨丧失的一种有价值的诊断工具。
