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Progress in Orthodontics

Table 6 Post-aging transmittance values of the three aligners

From: Optical properties of orthodontic aligners—spectrophotometry analysis of three types before and after aging

Wavelength (nm)

All-In

Invisalign

F22

p value

400

51.08 ± 2.6

63.38 ± 3.0

78.25 ± 1.2

<0.001

450

53.84 ± 2.5

65.74 ± 2.8

80.21 ± 1.5

<0.001

500

55.64 ± 2.5

66.96 ± 2.8

80.76 ± 1.5

<0.001

550

56.87 ± 2.6

67.80 ± 2.7

81.10 ± 1.5

<0.001

600

57.94 ± 2.6

68.39 ± 2.6

81.45 ± 1.5

<0.001

650

58.85 ± 2.6

68.87 ± 2.5

81.97 ± 1.6

<0.001

700

59.60 ± 2.6

69.27 ± 2.4

82.45 ± 1.7

<0.001

  1. Significance level p < 0.05
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