Table 3.

Results of the Mixed-Effects Models

	Pain	Discomfort	Frequency of clenching
Group	0.688 (.503)	0.947 (.388)	0.905 (.405)
Time	13.633 (< .001)*	24.002 (< .001)*	28.691 (< .001)*
Sex	0.513 (.471)	0.013 (0.911)	0.044 (.883)
Stress	18.333 (< .001)*	24.816 (< .001)*	4.055 (.044)*
Group*time	2.459 (.007)*	4.954 (< .001)*	1.815 (.055)

Data are reported as F value (P value). Each construct was measured using a 100-mm visual analog scale. *Statistically significant at P < .05.