Lavstedt S, Bolin A, Henrikson C O
Acta Odontol Scand. 1986 Aug;44(4):199-205. doi: 10.3109/00016358608997721.
Four hundred and six individuals from an unselected sample from the County of Stockholm aged 18-65 years in 1970 were examined radiographically in 1970 and 1980. The differences in proximal alveolar bone height were recorded, attention being paid to the divergences in projection between the two investigations. The mean of the alveolar bone difference was 5.5% of the mean root length, which corresponds to an average annual bone loss of 0.09 mm. Ninety per cent of the individuals had a difference in alveolar bone height of less than 10% of the root length--that is, an average bone loss of 1.6 mm or less during 10 years. By linear regression analysis it was shown that the difference in alveolar bone height is a function of the initial bone loss; that is, the greater the initial bone loss, the greater the alveolar bone loss during the 10-year period. The result of the regression analysis may facilitate predictions of alveolar bone loss.
1970年，对来自斯德哥尔摩县18 - 65岁未经过筛选的406名个体进行了X光检查，检查时间分别为1970年和1980年。记录了近中牙槽骨高度的差异，并留意了两次检查之间投影的差异。牙槽骨差异的平均值为平均牙根长度的5.5%，这相当于每年平均骨丢失0.09毫米。90%的个体牙槽骨高度差异小于牙根长度的10%，也就是说，在10年期间平均骨丢失为1.6毫米或更少。通过线性回归分析表明，牙槽骨高度差异是初始骨丢失的函数；也就是说，初始骨丢失越大，10年期间的牙槽骨丢失就越大。回归分析的结果可能有助于预测牙槽骨丢失。
