Table 2 Pairwise comparisons with respect to bleaching agent (Factor 3) for each intraorifice barrier and each time frame

0.325 ± 0.042^a

0.188 ± 0.069 ^a

0.106 ± 0.049 ^a

0.312 ± 0.142^a

0.191 ± 0.056 ^a

0.094 ± 0.015 ^a

0.034 ± 0.015^b

0.026 ± 0.010 ^a

0.018 ± 0.005 ^a

1.324 ± 0.292 ^a

0.515 ± 0.226 ^a

0.103 ± 0.037 ^a

0.434 ± 0.136 ^b

0.235 ± 0.104 ^b

0.079 ± 0.010 ^a

0.039 ± 0.013^c

0.026 ± 0.007 ^b

0.021 ± 0.005 ^a

0.391 ± 0.218 ^a

0.224 ± 0.055 ^a

0.112 ± 0.027 ^a

0.277 ± 0.097^ab

0.187 ± 0.027 ^a

0.073 ± 0.041 ^a

0.048 ± 0.018 ^b

0.030 ± 0.005 ^a

0.026 ± 0.006 ^a

0.819 ± 0.358 ^a

0.565 ± 0.261 ^a

0.136 ± 0.023 ^a

0.369 ± 0.194 ^b

0.247 ± 0.048 ^b

0.080 ± 0.011 ^a

0.045 ± 0.020^c

0.028 ± 0.009^b

0.027 ± 0.006 ^a