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Table 1 Minimal range concentration to reduce 6 log10 of S. mutans and S. sanguis and 5 log10 of C. albicans

From: In vitro effect photodynamic therapy with differents photosensitizers on cariogenic microorganisms

Pre-irradiation Incubation time (h) MB RB CUR
S. mutans ATCC 35668
<1 min 1.25–2.5 μg/ml 0.31–0.62 μg/ml 80–160 μg/ml
1 h 0.62–1.25 μg/ml 0.15–0.31 μg/ml 160–320 μg/ml
3 h 0.62–1.25 μg/ml 0.31–0.62 μg/ml 160–320 μg/ml
S. sanguis ATCC 10556
<1 min 1.25–2.5 μg/ml 0.62–1.25 μg/ml 160–320 μg/ml
1 h 0.31–0.62 μg/ml 0.15–0.31 μg/ml 40–80 μg/ml
3 h 0.15–0.31 μg/ml 0.15–0.31 μg/ml 40–80 μg/ml
C. albicans ATCC 1023
<1 min 80–160 μg/ml 320–640 μg/ml >1280 μg/ml
1 h 80–160 μg/ml >1280 μg/ml >1280 μg/ml
3 h 40–80 μg/ml >1280 μg/ml >1280 μg/ml
  1. Irradiation with metal halide lamp, λ 420–700 nm, fluence 37 J.cm−2