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Bactericidal activities of hBD-3 and chlorhexidine against S. mutans (A to D) and A. actinomycetemcomitans (E to H) after 1.5 h of incubation in SPB (A, E); 80, 40, or 20% saliva (B, F); 10, 5, or 2.5% serum (C, G); or 80% saliva combined with 5% serum (D, H). Data are means ± standard deviations of three independent experiments. chlor, chlorhexidine; SL, saliva; SR, serum.
