Table 4.

Changes of serum RANKL/OPG levels in the two groups of patients before and after treatment.

Group		OPG (ng/L)	RANKL (ng/L)
Control group (n = 50)	Before treatment	301.33 ± 32.76	14.47 ± 3.88
	After treatment	335.76 ± 27.89b	11.09 ± 4.21b
Observation group (n = 50)	Before treatment	300.98 ± 19.88	15.01 ± 4.09
	After treatment	387.95 ± 25.66ab	8.13 ± 1.44ab

Note. Compared with the control group in the same period, ^aP<0.05; compared with before treatment, ^bP < 0.05.