Site G2 in vivo
(n = 18)
G2 in vitro
(n = 18)
t-test
df = 34
P-valuea
Mean (SD) Mean (SD)
Anterior 1605.7 (122.3) 841.3 (10.6) 26.4 0.001
Posterior 194.2 (436.2) 1208.1 (26) 7.1 0.001
Lateral 1719.4 (143.1) 922.1 (35.3) 22.9 0.001
Central 2074.1 (131.9) 1344.6 (46.2) 22.1 0.001

aP statistically significant at level P < 0.05. Comparisons with independent t-test.
SD = standard deviation; df = degree of freedom.