Heilmann H H, Kuhl K, Steckhan F, Steckhan F
Poliklinik für Konservierende Stomatologie, Humboldt-Universität, Berlin.
Zahn Mund Kieferheilkd Zentralbl. 1990;78(7):587-92.
The concentration of zinc, magnesium, calcium and lead in four layers of dental hard tissue was analysed in 108 deciduous teeth of children from nine different places of the G.D.R. The result was a contrary gradient from enamel to dentine of magnesium in comparison with zinc, lead and calcium.
对来自民主德国九个不同地区的108颗儿童乳牙的四层牙硬组织中的锌、镁、钙和铅浓度进行了分析。结果显示,与锌、铅和钙相比,镁从牙釉质到牙本质呈现相反的梯度。