Muscle Activity in Pre-Treatment and Post-Treatment Oral Submucous Fibrosis Patients: Electromyography Study

Table 10

Sidewise comparison of masseter muscle amplitude.

Groups	Times	Right		Left		Mean difference	t value	value
		Mean	SD	Mean	SD
Group A	Before	361.08	26.13	361.57	33.62	0.49	0.077	0.939
	After	360.48	24.73	361.49	39.38	1.01	0.147	0.883
Group B	Before	362.37	16.92	361.82	16.84	0.55	0.154	0.878
	After	362.14	20.03	361.62	17.88	0.52	0.128	0.899
Group C	Before	363.15	16.51	362.44	21.85	0.71	0.174	0.862
	After	362.99	16.52	362.34	29.02	0.65	0.131	0.896
Group D	Before	346.23	23.10	344.97	22.23	1.26	0.263	0.793
	After	345.83	30.06	343.46	26.21	2.37	0.399	0.691
Control	Before	359.07	20.41	359.99	17.14	0.92	0.232	0.817
	After	358.41	14.04	359.84	21.51	1.43	0.374	0.709

, Group A (mouth opening more than 35 mm), Group B (mouth opening between 30 and 35 mm), Group C (mouth opening between 20 and 30 mm), and Group D (mouth opening less than 20 mm).