Effect of Bleaching and Thermocycling on Resin-Enamel Bond Strength

Table 2

Mean values and respective standard deviations of microshear bond strength (MPa) in experimental groups.

Experimental groups abbreviation	Mean (MPa)	Std. deviation		value
Filtek Z350 resin composite (group M)
MT	44.64a	11.62	12	<0.001
M	18.18b	5.68
MBT	39.93a	11.03	13
MB	21.09b	4.79
Filtek silorane resin composite (group S)
ST	26.33b	8.61	11	<0.001
S	16.56bc	3.55
SBT	24.20b	7.60	12
SB	9.73d	2.38
value

Significant changes in column for experimental groups are demonstrated by different letters for tests (Tukey’s test ).