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Table 1 Surface roughness

From: Effect of surface roughness of biomaterials on Staphylococcus epidermidis adhesion

  Ra (nm)  
Fine group Coarse group P-value
Oxinium 8.5 (0.5)b,d,e 30.0 (2.0)b,e 0.004
Co-Cr-Mo 5.8 (0.2)a,c,e 12.0 (1.9)a 0.004
Ti-6Al-4 V 7.1 (0.4)b,d,e 16.5 (14.5) 0.003
Cp-Ti 5.6 (1.2)a,c,e 22.0 (6.0) 0.004
SUS316L 1.8 (0.4)a,b,c,d 7.2 (1.9)a 0.002
  1. Data were expressed as a mean (standard deviation (SD)).
  2. Ra: arithmetic mean of the departure of the roughness profile from the profile center-line.
  3. a P < 0.01 compared with Oxinium.
  4. b P < 0.01 compared with Co-Cr-Mo.
  5. c P < 0.01 compared with Ti-6Al-4 V.
  6. d P < 0.01 compared with Cp-Ti.
  7. e P < 0.01 compared with SUS316L.