Medial | Lateral | ||||
DDwoR | DDwR | DDwoR | DDwR | ||
a | Biconcave | 7 | 1 | 1 | |
b | Even thickness | 2 | 2 | ||
c | Posterior band enlargement | 2 | 2 | 3 | 1 |
d | Folding | 5 | 1 | 6 | 7 |
e | Convex | 4 | 1 | 1 | |
*(p = 0.047) | (p = 0.603) |