Muscle Activity in Pre-Treatment and Post-Treatment Oral Submucous Fibrosis Patients: Electromyography Study
Table 7
Left side masseter muscle amplitude before and after treatment.
Groups
Before
After
Mean difference
% Of mean change
t value
value
Mean
SD
Mean
SD
Group A
361.57
33.62
361.49
39.38
0.08
0.02
0.030
0.976
Group B
361.82
16.84
361.62
17.88
0.20
0.06
0.096
0.924
Group C
362.44
21.85
362.34
29.02
0.10
0.03
0.027
0.978
Group D
344.97
22.23
343.46
26.21
1.51
0.44
1.318
0.194
Control
359.99
17.14
359.84
21.51
0.15
0.04
0.034
0.973
F-value
4.635
3.766
—
-value
, 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).
