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. 2020 Jun 19;10:9964. doi: 10.1038/s41598-020-66472-1

Figure 1.

Figure 1

Analysis of the concentration of trace elements in tooth dentine. (a) The concentration of all toxic elements analyzed in the different study groups; (b) The concentration of essential elements with statistically significant differences between the different groups. Each point represents the mean concentration value of each trace element. Statistical analysis was performed using the Kruskal-Wallis test. P < 0.05 was taken to be statistically significant. *p < 0.05; **p < 0.01; ***p < 0.001. This figure has been generated using GraphPad Prism 5 software.