Fig. 7From: Bactericidal effects of 310 nm ultraviolet light-emitting diode irradiation on oral bacteriaProduction of hydrogen peroxide in Ca9–22 cells by irradiation with the 310 nm UVB-LED. Monolayers of Ca9–22 cells were irradiated with 310 nm UVB-LED for 60 s and incubated for 0–6 h. Hydrogen peroxide production into cells was then examined using a kitBack to article page