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Table 4 Post-aging absorbance 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 0.278 ± 0.011 0.190 ± 0.03 0.104 ± 0.003 <0.001
450 0.257 ± 0.010 0.176 ± 0.03 0.092 ± 0.003 <0.001
500 0.243 ± 0.009 0.168 ± 0.03 0.089 ± 0.003 <0.001
550 0.234 ± 0.009 0.163 ± 0.02 0.087 ± 0.003 <0.001
600 0.226 ± 0.008 0.160 ± 0.02 0.086 ± 0.003 <0.001
650 0.219 ± 0.008 0.157 ± 0.02 0.083 ± 0.004 <0.001
700 0.214 ± 0.008 0.155 ± 0.02 0.080 ± 0.004 <0.001
  1. Significance level p < 0.05