Paterson L J, Raab G M, Hunter R, Laxen D P, Fulton M, Fell G S, Halls D J, Sutcliffe P
Department of Actuarial Mathematics and Statistics, Heriot-Watt University, Edinburgh, United Kingdom.
Sci Total Environ. 1988 Aug 1;74:219-33. doi: 10.1016/0048-9697(88)90139-8.
Data collected for the Edinburgh Lead Study have been used to investigate lead concentrations in children's naturally shed deciduous teeth. A within-child multiple-regression analysis has shown that the upper jaw has a higher concentration of lead than the lower, and that there is a gradient of decreasing concentration from the front to the back of the mouth. Even after the effects of jaw and tooth type have been allowed for, the concentration is still found to be negatively correlated with the weight of the tooth and with the age at which the tooth was shed. No statistically significant effects could be attributed to caries, fillings, or the incomplete resorption of roots. A single-valued index of tooth lead has been derived for each child, taking into account the fact that children gave different types of teeth.
为“爱丁堡铅研究”收集的数据已用于调查儿童自然脱落的乳牙中的铅浓度。一项儿童内部多元回归分析表明，上颌的铅浓度高于下颌，并且口腔内从前往后存在浓度递减的梯度。即使考虑了颌骨和牙齿类型的影响，仍发现铅浓度与牙齿重量以及牙齿脱落时的年龄呈负相关。龋齿、补牙或牙根不完全吸收均未产生统计学上的显著影响。考虑到儿童牙齿类型不同这一事实，为每个儿童得出了一个单一值的牙齿铅指数。
