## 3 Results
\begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline \multicolumn{2}{c}{**Element**} & \multirow{2}{*}{**Tissue**} & \multirow{2}{*}{**n**} & \multirow{2}{*}{**Mean**} & \multirow{2}{*}{**GM**} & \multirow{2}{*}{**Median**} & \multirow{2}{*}{**Range**} & \multirow{2}{*}{**SEM**} & \multicolumn{2}{c}{**Kruskal-Wallis Test**} & \multirow{2}{*}{\(p\)-Value**} \\ \cline{3-4} \cline{6-9} \multicolumn{1}{c}{} & & & & & & & & \\ \hline \multirow{3}{*}{Al} & enamel & 9 & 0.045 \({}^{\text{a}}\) & 0.043 & 0.045 & 0.0222–0.070 & 0.0046 & \\ \cline{2-9}  & dentin & 10 & 0.045 \({}^{\text{a}}\) & 0.042 & 0.048 & 0.0204–0.067 & 0.0051 & \\ \cline{2-9}  & cementum & 9 & 0.054 \({}^{\text{a}}\) & 0.046 & 0.057 & 0.0145–0.094 & 0.0095 & \\ \hline \multirow{3}{*}{Ba} & enamel & 9 & 0.008 \({}^{\text{a}}\) & 0.007 & 0.007 & 0.0027–0.012 & 0.0011 & \\ \cline{2-9}  & dentin & 10 & 0.006 \({}^{\text{a}}\) & 0.004 & 0.006 & 0.0007–0.016 & 0.0014 & \\ \cline{2-9}  & cementum & 9 & 0.011 \({}^{\text{a}}\) & 0.008 & 0.009 & 0.0008–0.024 & 0.0025 & \\ \hline \multirow{3}{*}{Cd} & enamel & 9 & 0.017 \({}^{\text{a}}\) & 0.007 & 0.005 & 0.0004–0.091 & 0.0095 & \\ \cline{2-9}  & dentin & 10 & 0.003 \({}^{\text{a}}\) & 0.001 & 0.001 & 0.001–0.016 & 0.0015 & \\ \cline{2-9}  & cementum & 9 & 0.017 \({}^{\text{a}}\) & 0.003 & 0.005 & 0.0002–0.075 & 0.0096 & \\ \hline \multirow{3}{*}{Cu} & enamel & 9 & 0.350 \({}^{\text{a}}\) & 0.278 & 0.242 & 0.136–0.830 & 0.0921 & \\ \cline{2-9}  & dentin & 10 & 0.278 \({}^{\text{a}}\) & 0.250 & 0.239 & 0.129–0.460 & 0.0411 & \\ \cline{2-9}  & cementum & 9 & 0.183 \({}^{\text{a}}\) & 0.152 & 0.129 & 0.068–0.439 & 0.0410 & \\ \hline \multirow{3}{*}{Fe} & enamel & 9 & 59.6 \({}^{\text{a}}\) & 45.4 & 36.5 & 18.8–177.7 & 18.01 & \\ \cline{2-9}  & dentin & 10 & 30.7 \({}^{\text{a}}\) & 25.4 & 21.3 & 13.4–100.7 & 8.14 & \\ \cline{2-9}  & cementum & 9 & 30.1 \({}^{\text{a}}\) & 15.1 & 19.6 & 1.6–81.1 & 10.42 & \\ \hline \multirow{3}{*}{K} & enamel & 9 & 138.1 \({}^{\text{a}}\) & 133.8 & 135.7 & 75.3–199.5 & 11.80 & \\ \cline{2-9}  & dentin & 10 & 94.8 \({}^{\text{b}}\) & 85.8 & 90.9 & 25.9–190.6 & 13.31 & \\ \cline{2-9}  & cementum & 9 & 120.2 \({}^{\text{ab}}\) & 111.9 & 120.6 & 35.5–169.6 & 12.64 & \\ \hline \multirow{3}{*}{Li} & enamel & 9 & 1.031 \({}^{\text{a}}\) & 0.923 & 1.312 & 0.464–1.504 & 0.1553 & \\ \cline{2-9}  & dentin & 10 & 0.829 \({}^{\text{ab}}\) & 0.673 & 0.767 & 0.127–1.452 & 0.1485 & \\ \cline{2-9}  & cementum & 9 & 0.421 \({}^{\text{b}}\) & 0.399 & 0.440 & 0.146–0.564 & 0.0387 & \\ \hline \multirow{3}{*}{Mg} & enamel & 9 & 1107.8 \({}^{\text{a}}\) & 1094.2 & 1156.6 & 736.7–1294.3 & 57.19 & \\ \cline{2-9}  & dentin & 10 & 1211.8 \({}^{\text{ab}}\) & 1128.1 & 1305.1 & 377.4–1822.2 & 127.47 & \\ \cline{2-9}  & cementum & 9 & 1592.9 \({}^{\text{b}}\) & 1519.4 & 1599.1 & 608.0–2078.9 & 141.13 & \\ \hline \multirow{3}{*}{Na} & enamel & 5 & 228.4 & 228.4 & 226.0 & 223.1–237.2 & 2.48 & \\ \cline{2-9}  & dentin & 6 & 179.3 & 157.4 & 219.9 & 44.6–229.3 & 30.50 & \\ \cline{2-9}  & cementum & 1 & 53.5 & 53.5 & 53.5 & 53.5–53.5 & & \\ \hline \multirow{3}{*}{Ni} & enamel & 9 & 0.040 \({}^{\text{a}}\) & 0.034 & 0.035 & 0.010–0.092 & 0.0082 & \\ \cline{2-9}  & dentin & 10 & 0.019 \({}^{\text{a}}\) & 0.009 & 0.018 & 0.00001–0.043 & 0.0037 & \\ \cline{2-9}  & cementum & 9 & 0.003 \({}^{\text{b}}\) & 0.002 & 0.002 & 0.0002–0.007 & 0.0009 & \\ \hline \multirow{3}{*}{Pb} & enamel & 9 & 0.420 \({}^{\text{a}}\) & 0.399 & 0.445 & 0.195–0.611 & 0.0435 & \\ \cline{2-9}  & dentin & 10 & 0.409 \({}^{\text{a}}\) & 0.378 & 0.382 & 0.137–0.747 & 0.0508 & \\ \cline{2-9}  & cementum & 9 & 0.357 \({}^{\text{a}}\) & 0.348 & 0.387 & 0.195–0.444 & 0.0272 & \\ \hline \multirow{3}{*}{Sr} & enamel & 9 & 21.8 \({}^{\text{a}}\) & 21.6 & 22.3 & 16.9–25.8 & 0.89 & \\ \cline{2-9}  & dentin & 10 & 20.1 \({}^{\text{a}}\) & 18.6 & 21.9 & 6.2–32.4 & 2.23 & \\ \cline{2-9}  & cementum & 9 & 21.3 \({}^{\text{a}}\) & 20.2 & 22.2 & 7.6–28.4 & 1.95 & \\ \hline \hline \end{tabular}
\end{table}