The Evaluation of the Clinical Effects of Botulinum Toxin on Nocturnal Bruxism

Table 4

Test statistics. Wilcoxon signed ranks test. Based on positive ranks. Based on negative ranks.

	vas2w-vaspi	Vas1m-vaspi	Vas3m-vaspi	Vas4m-vaspi	Vas6m-vaspi
	−4,390	−4,410	−4,395	−4,392	−4,124
Asymp.Sig. (2-tailed)	,000	,000	,000	,000	,000
	vas1m-vas2w	vas3m-vas2w	Vas4m-vas2w	vas6m-vas2w
	−3,257	−2,751	−1,629	−2,644
Asymp.Sig. (2-tailed)	,001	,006	,103	,008
	vas3m-vas1m	vas4m-vas1m	vas6m-vas1m	vas4m-vas3m
	−,736	−2,656	−4,234	−2,762
Asymp.Sig. (2-tailed)	,461	,008	,000	,006
	vas6m-vas3m	Vas6m-vas4m
	−4,148	−4,239
Asymp.Sig. (2-tailed)	,000	,000

vaspi: VAS score at preinjection; vas2w: VAS score at 2 weeks (after injection); vas1m: VAS score in first month; vas3m: VAS score in third month; vas4m: VAS score in fourth month; vas6m: VAS score in sixth month.