TABLE 5.

Statistical significance of the effect of F⁻ dose on mechanical properties between the 0 and 100ppm levels [9] and the Pearson Correlation Coefficient (r) between the bone crystallite width (HA width) and the mechanical property for all F⁻ doses (2-tailed significance). NS: not statistically significant

The crystallite width increase correlated with most of the decreased mechanical properties described in the susceptible (A/J) and intermediate (SWR/J) strains.

	A/J		SWR/J		129P3/J
	F− dose	HA width	F− dose	HA width	F− dose	HA width
Fultimate load	p < 0.001	r = −0.70 ***	NS	r = −0.56 **	NS	NS
F stiffness	0.001<p<0.05	r = −0.45 **	NS	r = −0.40 *	NS	NS
F ultimate stress	0.001<p<0.05	r = −0.67 **	0.001<p<0.05	r = −0.65 **	NS	NS
F modulus	NS	NS	NS	r = −0.47 **	NS	NS
VB ultimate load	NS	r = −0.48 **	p<0.001	r = −0.68 **	NS	NS
VB stiffness	0.001<p<0.05	r = −0.40 *	NS	NS	NS	NS
VB ultimate stress	NS	r = −0.46 *	p<0.001	r = −0.82 ***	NS	NS
VB modulus	0.001<p<0.05	r = −0.39 *	NS	NS	NS	NS
FN ultimate load	0.001<p<0.05	r = −0.72 ***	0.001<p<0.05	r = −0.61 **	NS	NS
FN stiffness	NS	r = −0.50 **	NS	NS	NS	NS