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Table 2 EMG clench measures while wearing the appliances

From: Occlus-o-Guide®versus Andresen activator appliance: neuromuscular evaluation

EMG measure with appliance Appliance used EMG examination datapoint
   T0 T1 T2
POC-ATM (%) Occlus-o-Guide® 79 ± 13 82 ± 7 83 ± 4
Andresen activator 73 ± 17 81 ± 10 82 ± 16
p 0.25 0.72 0.09
POC-MM (%) Occlus-o-Guide® 84 ± 8 85 ± 7 86 ± 4
Andresen activator 80 ± 8 84 ± 6 84 ± 12
p 0.02 0.05 0.11
%RATM Occlus-o-Guide® 60 ± 29 64 ± 19 68 ± 23
Andresen activator 46 ± 27 68 ± 36 88 ± 37
p 0.05 0.96 0.001
%LATM Occlus-o-Guide® 66 ± 39 65 ± 18 71 ± 26
Andresen activator 52 ± 28 58 ± 26 86 ± 24
p 0.10 0.04 0.009
%RMM Occlus-o-Guide® 87 ± 36 89 ± 26 99 ± 36
Andresen activator 60 ± 30 90 ± 32 99 ± 29
p 0.001 0.92 0.40
%LMM Occlus-o-Guide® 85 ± 43 88 ± 24 95 ± 31
Andresen activator 60 ± 30 87 ± 29 98 ± 32
  p 0.005 0.77 0.16
  1. Data are means ± standard deviation. T0, first use; T1, after 6 months; T2, 12 after months; POC-ATM, percent overlapping coefficient of the anterior temporalis muscles; POC-MM, percent overlapping coefficient of the masseter muscles; %RATM, %LATM, %RMM, %LMM, clench percentages for each muscle; p, significance between appliances (Mann–Whitney test).