Table 2. Three dimensional parameters of the ROI in the two groups (n = 6, x ± s).

	TAV	TNZS	t	P
4 weeks (n = 6)
BV (mm3)	9.15±1.56	10.82±1.73	−1.756	0.110
TMD (mg/cc)	574.58±57.08	625.47±64.39	−1.449	0.178
12 weeks (n = 6)
BV (mm3)	15.26±2.27	18.92±2.73*	−2.525	0.031
TMD (mg/cc)	861.25±80.08	981.37±90.26*	−2.438	0.035

ROI indicates region of interest, BV bone volume, TMD tissue mineral density.

^*significant differences were found compared with TAV group (P<0.05).