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. 2019 Jun 3;25:e20190001. doi: 10.1590/1678-9199-JVATITD-2019-0001

Figure 4. (A) Average height in micrometers, for the different formulations tested and surface scans. Bars represent the standard deviation of the mean of at least 30 measurements. *, P < 0.05; ***, P < 0.001. (B) Surface roughness (Ra) in micrometers, for the different formulations tested and surface scans. Bars represent the standard deviation of the mean of at least 30 measurements. *, P < 0.05; **, P < 0.01.

Figure 4.