TABLE 1.

Evaluation of thoracic vertebral body trabecular bone connectivity by strut analysis. Analysis of the number of free ends (NFE, disconnectivity) and of the number of nodes (NN, connectivity). Trabecular bone parameters (BVF, SA, TbTh, TbN and TbSp), SMI and anisotropy analysis of the thoracic vertebral body in the three strains.

	Fluoride Treatment (ppm)	Strain A/J	Strain SWR/J	Strain 129P3/J
NFE	0	39.67 ± 7.24	42.51 ± 12.83	38.05 ± 8.41
	100	39.25 ± 8.55	50.88 ± 7.09	47.08 ± 7.39
NN	0	10.24 ± 3.26	20.76 ± 3.80	25.36 ± 9.24
	100	7.25 ± 2.26	14.87 ± 5.71	24.36 ± 4.29
BVF (%)	0	0.22 ± 0.03	0.27 ± 0.03	0.30 ± 0.03
	100	0.20 ± 0.02	0.26 ± 0.02	0.27 ± 0.02
SA (mm2)	0	23.58 ± 2.94	27.68 ± 4.42	41.08 ± 4.18
	100	23.64 ± 6.45	28.63 ± 3.88	35.25 ± 7.22
Tb.Th. (µm)	0	0.026 ± 0.002	0.026 ± 0.004	0.028 ± 0.003
	100	0.024 ± 0.003	0.025 ± 0.002	0.027 ± 0.002
Tb.N. (mm−1)	0	8.66 ± 1.19	10.03 ± 0.98	10.66 ± 0.43
	100	8.55 ± 1.55	10.22 ± 0.83	9.92 ± 1.20
Tb.Sp. (µm)	0	0.091 ± 0.014	0.074 ± 0.008	0.066 ± 0.003
	100	0.097 ± 0.021	0.073 ± 0.007	0.075 ± 0.012
SMI	0	1.06 ± 0.40	0.47 ± 0.57	0.37 ± 0.35
	100	1.06 ± 0.38	0.69 ± 0.22	0.48 ± 0.28
a1/a3	0	1.73 ± 0.08	1.46 ± 0.07	1.52 ± 0.04
	100	1.51 ± 0.20	1.45 ± 0.09	1.55 ± 0.13
a1/a2	0	1.53 ± 0.07	1.37 ± 0.05	1.41 ± 0.06
	100	1.32 ± 0.17	1.35 ± 0.03	1.38 ± 0.13
a2/a3	0	1.13 ± 0.07	1.07 ± 0.04	1.08 ± 0.04
	100	1.14 ± 0.05	1.07 ± 0.05	1.12 ± 0.06

Data are presented as means ± SD. No significant statistical differences were noted.