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. 2013 Dec 26;5(6):101–107.

Table 5: Post hoc analysis (using Bonferroni multiple comparison test)

GROUP (P) GROUP (Q) MEAN DIFF(P-Q) SIG (p VALUE)
Group IB
(Control)
Group IIB
Group IIIB
Group IVB
5.943
4.642
1.477
.000
.000
.131
Group II (Bleaching w/o antioxidant) Group IB
Group IIIB
Group IVB
-5.943
-1.301
-4.466
.000
.025
.000
Group III (Bleaching with Na ascorbate) Group IB
Group IIB
Group IVB
-4.642
1.301
-3.165
.000
.025
.000
Group IV(Bleaching with GSE) Group IB
Group IIB
Group IIIB
-1.477
4.466
3.165
.131
.000
.000