Do the Microshear Test Variables Affect the Bond Strength Values?

Table 1

Materials, batch number, composition, and mode of application.

Materials/batch number	Composition	Mode of application
Adper single bond [7 MR]	Bis-GMA, HEMA, dimethacrylates, polyalkenoic acid copolymer, initiators, water, and ethanol	(1) Apply phosphoric acid to dentin for 15 s
		(2) Rinse for 15 s
		(3) Keep dentin wet
		(4) Apply two consecutive coats of adhesive for 15 s with gently agitation
		(5) Gently air for 5 s to evaporate the solvent (10 cm, 45^∘ inclination with 1-bar pressure)
		(6) Light polymerize for 10 s
XP Bond [0710004024]	TCB-resin, PENTA,UDMA, TEGDMA, HEMA, butylated benzenediol, ethyl-4-dimethylaminobenzoate, camphorquinone, nanofiller, t-butanol	(1) Apply phosphoric acid to dentin for 15 s
		(2) Rinse for 15 s
		(3) Apply the adhesive, and leave undisturbed for 20 seconds
		(4) Gently air for 5 s to evaporate the solvent (10 cm, 45^∘ inclination with 1-bar pressure)
		(5) Light polymerize for 20 s
Filtek Z250 [7 WN]	(1) Filler type—zirconia, silica	(1) Light polymerize each increment for 40 s
	(2) Resin—Bis-GMA, UDMA, and Bis-EMA

Bis-GMA: 2,2-bis[4-(2-hydroxy-3-methacryloyloxypropoxy)]-phenyl propane; HEMA: 2-hydroxyethylmethacrylate; TEGDMA: tryethyleneglycol dimethacrylate; UDMA: urethane dimethacrylate; TCB-resin: carboxylic acid-modified dimethacrylate; PENTA: phosphoric acid-modified acrylate resin; Bis-EMA: bisphenol-A, ethoxylate 0110 dimethacrylate.