Ekanayaka A
Community Dent Oral Epidemiol. 1984 Apr;12(2):128-35. doi: 10.1111/j.1600-0528.1984.tb01425.x.
The tooth mortality of 787 Sri Lanka tea plantation workers and residents aged between 15 and 85 yr was studied in terms of missing teeth as well as teeth requiring extraction for various reasons. The mean number of missing teeth per person was 6.7 +/- 9.0. A pattern relating actual tooth loss and tooth loss adjusted to take account of teeth needing extraction was observed. Such adjustment increased the mean number of missing teeth per person by about two teeth in most age groups. The age specific pattern of tooth loss was calculated. There was an abrupt increase in tooth mortality at the ages 45-54. The age specific tooth mortality for the Sri Lankan group was consistently less than for people in several Western countries. These trends were also apparent in the mortality pattern of individual tooth types. Although there was a tendency for more women to be edentulous, a significantly higher proportion of women than men had a full complement of teeth.
对787名年龄在15至85岁之间的斯里兰卡茶园工人和居民的牙齿死亡率进行了研究，研究内容包括缺失牙以及因各种原因需要拔除的牙齿。每人平均缺失牙数为6.7±9.0。观察到实际牙齿缺失与考虑到需要拔除的牙齿后调整的牙齿缺失之间的一种模式。在大多数年龄组中，这种调整使每人平均缺失牙数增加了约两颗。计算了特定年龄的牙齿缺失模式。45至54岁年龄段的牙齿死亡率急剧上升。斯里兰卡人群的特定年龄牙齿死亡率一直低于几个西方国家的人群。这些趋势在个别牙齿类型的死亡率模式中也很明显。虽然女性无牙的倾向更大，但拥有完整牙齿的女性比例明显高于男性。
