Table 1.

X-ray scores of bone formation and moulding in different groups ()

Time (weeks)	Group A		Group B		Group C		Group D
	N	Score	N	Score	N	Score	N	Score
4	15	2.8 ± 0.30*△	15	4.5 ± 0.45*	15	2.6 ± 0.34*△	15	1.0 ± 0.30
8	10	5.8 ± 0.74*△	10	8.3 ± 0.67*	10	5.2 ± 0.42*△	10	1.5 ± 0.29
12	5	8.8 ± 1.05*△	5	10.6 ± 0.73*	5	8.9 ± 0.78*△	5	2.2 ± 0.57

* Compared with group D P < 0.05

△ Compared with group B P < 0.05