Table 1 Subjective (0–10 scale) and objective (N) dislodgement force at each angle

0

0.19 ± 0.18^a

8.11 ± 0.91^a

2

1.24 ± 0.16^a

9.10 ± 0.29^a

4

1.43 ± 0.16^a

9.33 ± 0.26^a

6

2.38 ± 0.30^a

10.46 ± 0.30^a

8

2.62 ± 0.13^a

10.66 ± 0.26^ab

10

2.81 ± 0.18^a

11.23 ± 0.27^ab

12

3.57 ± 0.25^a

11.50 ± 0.31^b

14

5.48 ± 0.18^b

12.51 ± 0.33^bc

16

6.71 ± 0.23^b

13.57 ± 0.45^c

18

9.71 ± 0.23^c

25.40 ± 0.66^d

20

10.00 ± 0.00^c

35.22 ± 0.64^d

KWT P value

< 0.001*

< 0.001*