T0   5 strokes 10 strokes 20 strokes 30 strokes 50 strokes GroupI X ± SD 0.2700 ± 0.1120 0.3202 ± 0.0539 0.0260 ± 0.0004 0.0179 ± 0.0035 0.0033 ± 0.0015 Group II X ± SD 0.0949 ± 0.0181 0.0372 ± 0.0168 0.0094 ± 0.0007 0.0064 ± 0.0009 0.0037 ± 0.0006 Mann-Whitney test (p value) 0.018* 0.018* 0.015* 0.017* 0.10   T3   5 strokes 10 strokes 20 strokes 30 strokes 50 strokes Group I X ± SD 0.0093 ± 0.0024 0.00437 ± 0.0072 0.00395 ± 0.0073 0.0243 ± 0.0083 0.0029 ± 0.0005 Group II X ± SD 0.0910 ± 0.0459 0.0788 ± 0.0484 0.00292 ± 0.0082 0.0057 ± 0.0010 0.0011 ± 0.0011 Mann-Whitney test (p value) 1.0 1.0 0.23 0.018* 0.011*   T6   5 strokes 10 strokes 20 strokes 30 strokes 50 strokes Group I X ± SD 0.0766 ± 0.0289 0.0362 ± 0.0057 0.0237 ± 0.0182 0.0198 ± 0.0143 0.0029 ± 0.0004 Group II X ± SD 0.1617 ± 0.0065 0.0939 ± 0.0318 0.0462 ± 0.0173 0.0185 ± 0.0104 0.0059 ± 0.0016 Mann-Whitney test (pvalue) 0.015* 0.012* 0.045* 1.0 0.018* *UF significantly decreased with advance time.

Table 1: Shows the difference in unmixed fraction (UF) between the numbers of chewing strokes at different observation times for both groups.