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Effects of erbium, chromium-doped yttrium, scandium, gallium, and garnet (Er,Cr:YSGG) laser–treated Ti discs on NIH3t3 fibroblast alkaline phosphatase (ALP) activity. Cells were incubated from day 1 to 5. O.D., optical density. Statistically significant differences were found in all days. * p < 0.05.
