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Average concentration of lead in hard tissues of impacted teeth (μg/g).
| Tissue | Enamel | Dentin | Total | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Place of residence | Concentration (μg/g) |
SD | α = 0.05 | Concentration (μg/g) |
SD | α = 0.05 | Concentration (μg/g) |
SD | α = 0.05 |
| Urban | 1.655 | 0.145 | p = 0.0001 | 2.315 | 0.171 | p = 0.0507 | 1.985 | 0.158 | p = 0.0010 |
| Rural | 1.208 | 0.276 | 2.110 | 0.344 | 1.659 | 0.260 | |||
