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Table 2 Comparison between the different test foods according to RMS values of the EMG signals of right and left masseter muscles in bilateral balanced occlusion

From: A prospective cross-over study to evaluate the effect of two different occlusal concepts on the masseter muscle activity in implant-retained mandibular overdentures

  Silicon index (n = 12) Peanut (n = 12) Cake (n = 12) KW χ 2 p
Right
Min.–Max. 26.0–66.0 28.0–63.0 28.0–54.0   
Mean ± SD 55.75 ± 13.05 45.67 ± 12.34 38.33 ± 8.24 10.180* 0.006*
Median 60.0 43.50 37.50   
  p 1 = 0.005*, p 2 = 0.037*, p 3 = 0.063   
Left
Min.–Max. 33.0–78.0 21.0–108.0 23.0–85.0   
Mean ± SD 62.17 ± 15.86 57.33 ± 28.65 42.50 ± 21.66 5.013 0.082
Median 64.50 50.50 40.50   
  p 1 = 0.037*, p 2 = 0.354, p 3 = 0.131   
  1. KW χ 2 chi square for Kruskal-Wallis test, p 1 p value for Mann-Whitney test for comparing between Silicon index and Cake, p 2 p value for Mann-Whitney test for comparing between silicon index and peanut, p 3 p value for Mann-Whitney test for comparing between cake and peanut
  2. *Statistically significant at p ≤ 0.05