Table 1.
Surface roughness in all stem areas.
| SUS Group | CoCr Group | ||||||
|---|---|---|---|---|---|---|---|
| No.1 | No.2 | No.3 | No.1 | No.2 | No.3 | ||
| Front | proximal | 50.67 (22.19) | 35.00 (9.64) | 49.33 (22.12) | 54.00 (1.00) | 38.67 (0.58) | 46.33 (1.15) |
| middle | 41.33 (3.21) | 40.00 (3.61) | 43.00 (3.46) | 48.33 (3.06) | 49.00 (5.29) | 46.33 (4.04) | |
| distal | 58.67 (10.40) | 66.33 (6.03) | 54.33 (10.26) | 54.33 (8.50) | 55.33 (14.01) | 57.33 (8.14) | |
| Back | proximal | 47.00 (1.73) | 32.00 (2.65) | 43.67 (2.31) | 60.00 (7.21) | 51.33 (6.43) | 42.33 (1.52) |
| middle | 57.33 (10.12) | 37.00 (1.00) | 59.00 (10.39) | 56.33 (3.21) | 53.00 (5.57) | 42.00 (5.29) | |
| distal | 67.00 (8.89) | 45.67 (9.02) | 65.67 (9.45) | 64.33 (10.50) | 68.33 (7.64) | 58.67 (1.53) | |
Surface roughness was assessed on the front and back surfaces of the stem: proximal, middle, and distal from the top of the stem as shown in Figure 2. Numbers indicate mean thickness in each group. Numbers within ( ) are standard deviation. The notation unit is nm.