## 3 Results

Table 2: _Cont._  
\begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline
**Element** & **Tissue** & **n** & **Mean** & **GM** & **Median** & **Range** & **SEM** & **Kruskal–Wallis Test** & _p_-Value** \\ \hline \multirow{4}{*}{Ba} & enamel & 27 & 0.003 a  & 0.003 & 0.003 & 0.001–0.006 & 0.0002 & \\ \cline{2-8}  & dentin & 24 & 0.005 b  & 0.004 & 0.004 & 0.003–0.007 & 0.0002 & \(\mathrm{H}=12.0\) & \(p\) = 0.002 \\ \cline{2-8}  & cementum & 28 & 0.004 ab  & 0.004 & 0.004 & 0.001–0.009 & 0.0004 & \\ \hline \multirow{4}{*}{Cd} & enamel & 27 & 0.012 a  & 0.007 & 0.008 & 0.001–0.048 & 0.0023 & \\ \cline{2-8}  & dentin & 24 & 0.007 b  & 0.004 & 0.006 & 0.0005–0.022 & 0.0014 & \\ \cline{2-8}  & cementum & 28 & 0.008 b  & 0.001 & 0.001 & 0.0001–0.090 & 0.0035 & \\ \hline \multirow{4}{*}{Cu} & enamel & 27 & 0.155 a  & 0.120 & 0.123 & 0.040–0.969 & 0.0331 & \\ \cline{2-8}  & dentin & 24 & 0.526 b  & 0.468 & 0.492 & 0.161–1.114 & 0.0493 & \(\mathrm{H}=37.9\) & \(p\) \(<\) 0.001 \\ \cline{2-8}  & cementum & 28 & 0.166 a  & 0.130 & 0.148 & 0.034–0.523 & 0.0219 & \\ \hline \multirow{4}{*}{Fe} & enamel & 27 & 64.9 a  & 49.2 & 49.2 & 14.9–183.8 & 9.80 & \\ \cline{2-8}  & dentin & 24 & 28.7 a  & 26.7 & 28.6 & 12.2–66.0 & 2.40 & \(\mathrm{H}=26.1\) & \(p\) \(<\) 0.001 \\ \cline{2-8}  & cementum & 28 & 25.3 b  & 12.4 & 12.4 & 2.3–176.4 & 7.46 & \\ \hline \multirow{4}{*}{K} & enamel & 27 & 99.4 a  & 97.6 & 95.7 & 71.7–156.2 & 3.88 & \\ \cline{2-8}  & dentin & 24 & 100.5 a  & 99.7 & 98.0 & 83.7–147.5 & 2.83 & \(\mathrm{H}=0.3\) & \(p\) \(=\) 0.86 \\ \cline{2-8}  & cementum & 28 & 106.7 a  & 101.8 & 97.6 & 60.0–199.3 & 6.63 & \\ \hline \multirow{4}{*}{Li} & enamel & 27 & 0.817 a  & 0.739 & 0.660 & 0.407–1.463 & 0.0740 & \\ \cline{2-8}  & dentin & 24 & 0.474 b  & 0.470 & 0.460 & 0.399–0.677 & 0.0140 & \(\mathrm{H}=14.3\) & \(p\) \(<\) 0.001 \\ \cline{2-8}  & cementum & 28 & 0.673 b  & 0.596 & 0.507 & 0.295–1.258 & 0.0635 & \\ \hline \multirow{4}{*}{Mg} & enamel & 27 & 1083.3 a  & 1069.2 & 1034.0 & 862.4–1493.4 & 35.40 & \\ \cline{2-8}  & dentin & 24 & 1323.8 b  & 1315.8 & 1344.1 & 1087.4–1575.9 & 30.44 & \\ \cline{2-8}  & cementum & 28 & 1447.3 b  & 1336.7 & 1473.5 & 154.4–3196.0 & 92.53 & \\ \hline \multirow{4}{*}{Na} & enamel & 7 & 234.8 & 234.5 & 237.0 & 217.6–252.4 & 4.49 & \\ \cline{2-8}  & dentin & 0 & & & & & \\ \cline{2-8}  & cementum & 12 & 194.2 & 189.3 & 204.3 & 98.1–241.7 & 11.61 & \\ \hline \multirow{4}{*}{Ni} & enamel & 27 & 0.156 a  & 0.134 & 0.120 & 0.047–0.357 & 0.017 & \\ \cline{2-8}  & dentin & 24 & 0.126 a  & 0.087 & 0.090 & 0.018–0.949 & 0.037 & \(\mathrm{H}=44.9\) & \(p\) \(<\) 0.001 \\ \cline{2-8}  & cementum & 28 & 0.022 b  & 0.006 & 0.006 & 0.0002–0.122 & 0.006 & \\ \hline \multirow{4}{*}{Pb} & enamel & 27 & 0.400 a  & 0.388 & 0.398 & 0.256–0.764 & 0.0211 & \\ \cline{2-8}  & dentin & 24 & 0.415 a  & 0.392 & 0.346 & 0.276–0.989 & 0.0336 & \(\mathrm{H}=6.1\) & \(p\) \(=\) 0.05 \\ \cline{2-8}  & cementum & 26 & 0.515 a  & 0.481 & 0.462 & 0.281–1.047 & 0.0411 & \\ \hline \multirow{4}{*}{Sr} & enamel & 27 & 23.6 a  & 22.9 & 23.7 & 11.8–32.5 & 1.088 & \\ \cline{2-8}  & dentin & 24 & 23.2 a  & 22.7 & 23.1 & 14.4–36.1 & 0.961 & \(\mathrm{H}=0.6\) & \(p\) \(=\) 0.75 \\ \cline{2-8}  & cementum & 28 & 25.2 a  & 24.3 & 23.5 & 14.8–52.5 & 1.491 & \\ \hline \multirow{4}{*}{Zn} & enamel & 26 & 15.0 a  & 14.8 & 14.7 & 11.3–21.2 & 0.49 & \\ \cline{2-8}  & dentin & 24 & 17.5 b  & 17.4 & 17.3 & 13.9–22.7 & 0.43 & \(\mathrm{H}=49.6\) & \(p\) \(<\) 0.001 \\ \cline{2-8}  & cementum & 28 & 26.