Lavstedt S, Bolin A, Henrikson C O, Carstensen J
Acta Odontol Scand. 1986 Jun;44(3):149-57. doi: 10.3109/00016358609026567.
A longitudinal radiographic investigation was made of the progression of the proximal alveolar bone loss over a 10-year period (1970-1980). The material was unselected and consisted of 669 individuals in the county of Stockholm. Sixty-one individuals were randomly selected for evaluation of a recording system using alternative methods of measurement, and 90% of the measurement sites could then be assessed. The correlations between some of the methods were high, such as between measurement of alveolar bone height and root length and between alveolar bone height and tooth length. To reduce the number of measurements, a partial recording was made, giving a high correlation coefficient between the partial recording and total recording. When five measurement sites (12 m, 11 m, 33 d, 31 d, 41 m) were were used, the correlation coefficient was 0.96, and a slight increase of the coefficient was obtained when using additional sites.
对1970年至1980年这10年间近端牙槽骨丧失的进展情况进行了一项纵向影像学研究。该研究材料未经过筛选，来自斯德哥尔摩县的669名个体。随机选择61名个体，使用替代测量方法对记录系统进行评估，随后90%的测量部位能够得到评估。一些测量方法之间的相关性较高，如牙槽骨高度与牙根长度测量之间以及牙槽骨高度与牙冠长度测量之间。为减少测量次数，进行了部分记录，部分记录与全部记录之间具有较高的相关系数。当使用五个测量部位（12 m、11 m、33 d、31 d、41 m）时，相关系数为0.96，使用更多部位时系数略有增加。
