Gradients of inorganic components in enamel and dentin of deciduous teeth. I. Lead concentration in children with variable environmental conditions

: The concentration of lead in four layers of dental hard tissues was analysed in 108 deciduous teeth of children from nine places of the G.D.R.. The result was a typical gradient from enamel to dentine. The average concentration of lead corresponds with that of other industrial countries. Although regional differences were found equal exposition of lead for both urban and rural areas can be assumed.