Table 1: (a) Novel pedicle screw with dimples. (b) Novel pedicle screw with no dimples.
(a)

TimePretest (g)Posttest (g)Differences (g)

First9.74279.71330.0294
Second9.65679.61890.0378
Third9.63409.59990.0341

Average0.0338

(b)

TimePretest (g)Posttest (g)Differences (g)

First9.73759.69670.0408
Second9.75189.71850.0333
Third9.72149.68340.0380

Average0.0374