Table 5.

(b) Comparison of the cross-sectional thickness of masseter, anterior temporalis and orbicularis oris muscles in the relaxed and contracted states (right and left side) of Groups I, II, III and IV with the control group (multiple comparisons: Dunnett test)

Side	Study group	Control group	Masseter				Anterior temporalis				Orbicularis oris
			Relaxed		Contracted		Relaxed		Contracted		Relaxed		Contracted
			Mean difference	p-value	Mean difference	p-value	Mean difference	p-value	Mean difference	p-value	Mean difference	p-value	Mean difference	p-value
Right side	I	Control	−0.34	0.967, NS, p > 0.05	0.62	0.92, NS, p > 0.05	0.51	0.61, NS, p > 0.05	0.004	1.000, NS, p > 0.05	−0.74	0.28, NS, p > 0.05	−0.75	0.478, NS, p > 0.05
	II		−0.05	1.000, NS, p > 0.05	−0.95	0.72, NS, p > 0.05	0.07	1.00, NS, p > 0.05	−0.151	0.99, NS, p > 0.05	−0.36	0.84, NS, p > 0.05	−0.95	0.26, NS, p > 0.05
	III		−0.35	0.963, NS, p > 0.05	−0.05	1.00, NS, p > 0.05	0.93	0.12, NS, p > 0.05	0.415	0.918, NS, p > 0.05	−0.14	0.994, NS, p > 0.05	−0.26	0.975, NS, p > 0.05
	IV		−1.42	0.121, NS, p > 0.05	−2.63	0.02, S, p < 0.05	0.39	0.81, NS, p > 0.05	−0.195	0.995, NS, p > 0.05	1.02	0.074, NS, p > 0.05	−0.68	0.576, NS, p > 0.05
Left side	I	Control	0.17	0.995, NS, p > 0.05	−0.59	0.86, NS, p > 0.05	0.37	0.89, NS, p > 0.05	0.633	0.682, NS, p > 0.05	−0.56	0.479, NS, p > 0.05	−1.15	0.114, NS, p > 0.05
	II		−1.10	0.173, NS, p > 0.05	−1.84	0.05, NS, p > 0.05	−0.43	0.83, NS, p > 0.05	−0.624	0.693, NS, p > 0.05	−0.61	0.393, NS, p > 0.05	−1.17	0.103, NS, p > 0.05
	III		0.29	0.967, NS, p > 0.05	−0.77	0.72, NS, p > 0.05	−0.39	0.87, NS, p > 0.05	−0.214	0.991, NS, p > 0.05	−0.82	0.155, NS, p > 0.05	−1.13	0.124, NS, p > 0.05
	IV		−1.19	0.123, NS, p > 0.05	−3.25	0.00, S, p < 0.05	−0.39	0.87, NS, p > 0.05	−0.547	0.78, NS, p > 0.05	0.67	0.31, NS, p > 0.05	−1.07	0.15, NS, p > 0.05

NS, not significant; S, significant.