Table 1 Mean and standard deviation values of peroxide diffusion (µg/mL) for each experimental group (n = 10). Pairwise comparisons are given with respect to intraorifice barrier (Factor 1) and time frame (Factor 2) for each bleaching agent and control

0.325 ± 0.042^Aa

0.188 ± 0.069 ^Aa

0.106 ± 0.049 ^Aa

1.324 ± 0.292^Ab

0.515 ± 0.226^Bb

0.103 ± 0.037^Ca

0.391 ± 0.218^Aa

0.224 ± 0.055^ABa

0.112 ± 0.027^Ba

0.819 ± 0.358^Ac

0.565 ± 0.261^Bb

0.136 ± 0.023^Ca

0.312 ± 0.142^Aa

0.191 ± 0.056 ^Aa

0.094 ± 0.015 ^Aa

0.434 ± 0.136 ^Aa

0.235 ± 0.104 ^ABa

0.079 ± 0.010^Ba

0.277 ± 0.097 ^Aa

0.187 ± 0.027 ^Aa

0.073 ± 0.041 ^Aa

0.369 ± 0.194 ^Aa

0.247 ± 0.048 ^ABa

0.080 ± 0.011^Ba

0.034 ± 0.015 ^Aa

0.026 ± 0.010 ^Aa

0.018 ± 0.005 ^Aa

0.039 ± 0.013 ^Aa

0.026 ± 0.007 ^Aa

0.021 ± 0.005 ^Aa

0.048 ± 0.018 ^Aa

0.030 ± 0.005 ^Aa

0.026 ± 0.006 ^Aa

0.045 ± 0.020 ^Aa

0.028 ± 0.009 ^Aa

0.027 ± 0.006 ^Aa