Figure 4 | Scientific Reports

Figure 4

From: Bactericidal activity and recovery effect of hydroxyl radicals generated by ultraviolet irradiation and silver ion application on an infected titanium surface

Figure 4

Results of bactericidal assessments in the Ag(+)L(+) group with or without DMSO (a reactive oxygen species scavenger agent) in (A) S. mutans, (B) A. actinomycetemcomitans. Ag(+)L(+) + DMSO: Mixture of bacterial suspension and silver nitrate solution (400 μM) was irradiated with UV-A light for 1 min with 1.4 M DMSO. Ag(+)(L + ): without DMSO, and Ag(+)L(−): without UV-A light irradiation and DMSO. Ag(−)L(−): initial count. Values and error bars indicate the mean and standard deviation, respectively. Significant differences (p < 0.05) between the groups are denoted by different superscript letters (i.e., bars with the same letter are not significantly different).

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