Table 3 Mean values (MW), standard deviations (SD) and p-values during standing (sonoSens monitor) of all measurement conditions in rest position (N), with ready-made mouthguard (rMG) and individual, custom-made mouthguard (iMG). The respective units of measurement are shown at the individual parameter. Significant p-values are marked in bold

 Cervical spine left (mm)

109.14

101.90

102.09

33.64

34.78

33.36

0.17

 Cervical spine right (mm)

109.06

99.72

103.49

27.95

22.13

23.40

0.19

 Thoracic spine left (mm)

301.25

302.69

314.86

29.53

35.66

63.81

0.01

 Thoracic spine right (mm)

305.76

304.74

317.19

32.02

40.79

69.70

0.10

 Lumbar spine left (mm)

125.92

114.96

123.34

31.31

33.19

33.42

0.08

 Lumbar spine right (mm)

150.01

115.25

123.35

98.85

30.55

27.63

0.11

 Cervical spine left (mm)

117.39

113.39

122.97

25.55

20.39

23.38

0.32

 Cervical spine right (mm)

118.61

115.76

114.84

26.38

29.54

28.28

0.54

 Thoracic spine left (mm)

348.51

321.27

358.29

89.83

37.15

100.28

0.04

 Thoracic spine right (mm)

317.67

319.77

320.66

37.30

38.99

68.91

0.20

 Lumbar spine left (mm)

144.69

136.68

153.32

27.00

29.64

30.77

0.01

 Lumbar spine right (mm)

145.84

145.90

150.59

23.77

29.41

30.96

0.32