. 2014 Jul 17;2014:542678. doi: 10.1155/2014/542678

Table 2.

Flexural strength mean and standard deviation (MPa) for the interaction between %wt of glass fibers and type of resinous material. Statistical comparisons by ANOVA following Tukey-HSD test and paired comparisons by Student t-test (α = 0.05).

Quantity of glass fibers (%wt)	Type of resinous materials
Quantity of glass fibers (%wt)	Filled resin	Unfilled resin
0	442.78 ± 140.65^Ca	187.76 ± 120.37^Bb
10	772.81 ± 446.33^ABCa	795.48 ± 688.19^Ba
15	854.78 ± 297.35^ABb	1999.91 ± 1258.65^Aa
20	863.46 ± 418.05^Ab	1911.55 ± 596.88^Aa
30	459.55 ± 140.59^BCb	2090.61 ± 656.79^Aa

Different capital letters (vertical analysis) and lower case letters (horizontal analysis) mean statistical significant differences with P < 0.05.