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Brazilian Journal of Oral Sciences
Piracicaba Dental School - UNICAMP
EISSN:
Vol. 13, No. 1, 2014, pp. 64-69
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Bioline Code: os14013
Full paper language: English
Document type: Research Article
Document available free of charge
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Brazilian Journal of Oral Sciences, Vol. 13, No. 1, 2014, pp. 64-69
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Shear bond strength of a “solvent-free” adhesive versus contemporary adhesive systems
Koliniotou-Koumpia, Eugenia; Kouros, Pantelis; Koumpia, Effimia & Helvatzoglou-Antoniades, Maria
Abstract
Aim: To compare the shear bond strength (SBS) of a solvent free self-etch adhesive with solvent
containing adhesives. Methods: Forty-five human teeth were sectioned longitudinally to expose
superficial dentin and substrates polished with 600-grit SiC paper. The adhesive area was
isolated with a cylindrical Teflon mold 3x4 mm. Fifteen specimens were prepared for each material.
Were evaluated a solvent free self-etch adhesive (Bond 1 SF), an ethanol self-etch adhesive
(Futurabond M), and a water-acetone-ethanol self-etch adhesive (Optibond All-In-One). All
specimens were subjected to an aging procedure by thermo-cycling (5000 cycles). Thirty-six
specimens were stressed in shear at a rate of 0.5mm/min. Mean data values were analyzed
statistically using the Welch robust analysis of variance and the Games-Howell statistic. Failure
patterns were analyzed using stereomicroscope and scanning electron microscopy (SEM).
Additional more dentin specimens were prepared for SEM. Results: The Bond 1 SF showed the
statistically significant lowest SBS to dentin (Welch statistic p<0.001). Failures for Bond 1 SF were
mainly adhesive failures with partial cohesive failures in the adhesive resin, while for Futurabond
M and Optibond All-In-One were mainly mixed. SEM findings confirm the results. Conclusions:
Eliminating solvents from self-etch adhesive systems may decrease the bonding strength to dentin.
Keywords
adhesives; bonding systems; shear bond strength; solvents
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© Brazilian Journal of Oral Sciences Alternative site location: http://www.fop.unicamp.br/brjorals
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