Karahalil B, Aykanat B, Ertaş N
Toxicology Department, Faculty of Pharmacy, Gazi University, 06330 Hipodrom, Ankara, Turkey.
Int J Hyg Environ Health. 2007 Mar;210(2):107-12. doi: 10.1016/j.ijheh.2006.08.009. Epub 2006 Nov 3.
The lead content of shed primary teeth has proved to be a reliable measure of cumulative lead exposure in children as it is an indicator of the degree of exposure over several years, from in utero life to loss of the tooth. Totally 297 shed deciduous teeth were collected from 263 children between ages 4 and 15 to determine the level of lead exposure in Ankara and Balikesir in Turkey. Ankara is the capital of Turkey and characterized by heavy traffic and high air pollution. On the other hand, Balikesir has less traffic. Balikesir-Centre (R) had the highest mean (SD) lead level (1.77+/-1.03microg/g) whereas Ankara-Centre (U) had the lowest level (1.30+/-0.59microg/g). We could not observe a statistically significant difference between urban and suburban regions (Table 1), and in terms of type of tooth, incisors had a statistically significant higher lead level than canines and molars (p<0.05, Table 2). No difference was observed between boys and girls and the accumulation of lead in teeth (p<0.05, ).
已证实，脱落乳牙中的铅含量是衡量儿童铅累积暴露的可靠指标，因为它能反映从子宫内生活到牙齿脱落这几年间的暴露程度。从263名4至15岁儿童中总共收集了297颗脱落乳牙，以测定土耳其安卡拉和巴勒克埃西尔的铅暴露水平。安卡拉是土耳其首都，交通繁忙，空气污染严重。另一方面，巴勒克埃西尔的交通流量较小。巴勒克埃西尔市中心（R）的平均（标准差）铅含量最高（1.77±1.03微克/克），而安卡拉市中心（U）的含量最低（1.30±0.59微克/克）。我们未观察到城市和郊区之间存在统计学上的显著差异（表1），就牙齿类型而言，门牙的铅含量在统计学上显著高于犬齿和臼齿（p<0.05，表2）。未观察到男孩和女孩以及牙齿中铅的累积情况之间存在差异（p<0.05）。
