Influence of Polishing Methods on the Bonding Effectiveness and Durability of Different Resin Cements to Dentin

Table 2

Microtensile bond strengths (mean ± SD, MPa) for all specimen groups.

Resin cement	Polishing method	Water storage time
		24 hours	2 years
Etch-and-rinse	A	24.4 ± 7.	25.6 ± 7.
	B	24.4 ± 9.	23.5 ± 7.
Self-etch	A	60.8 ± 14.	15.7 ± 8.
	B	71.3 ± 11.	28.0 ± 12.
Self-adhesive	A	21.9 ± 5.	7.3 ± 5.
	B	36.5 ± 6.	8.8 ± 2.

Means with same letters are not significantly different by Turkey’s test . Means with the same lowercase letters within same column are not statistically different, and means with the same uppercase letters within same row are not statistically different.