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Correlation between the surface roughness and the S. mutans attachment. (a) The correlation between the surface roughness and the initial adhesion force. (b) The correlation between the surface roughness and the number of attached S. mutans after incubation for 2 h. (c) The correlation between the surface roughness and A570 after incubation for 4 h, 8 h, 12 h, and 24 h.
