Stems | Contact angle (˚) | |
Group-1 E1 + E3 + E4 + E6 | Group-2 E2 | |
Narrow | 112.16 ± 10.80 | 113.28 ± 7.91 |
Medium | 117.8 ± 16.03 | 127.78 ± 14.33 |
Wide | 126.11 ± 20.8 | 118.35 ± 12.85 |