No abstract

No abstract

AD Loguercio D Salvalaggio AE Piva CA Klein-Jú nior M de LR Accorinte MM Meier RHM Grande A Reis Clinical RelevancePreheating ethanol/water-based adhesive systems could be useful to improve the hybrid layer quality. SUMMARYObjectives: To evaluate the effect of adhesive temperature on the resin-dentin bond strength (lTBS), nanoleakage (NL), adhesive layer thickness (AL), and degree of conversion (DC) of ethanol/water-(SB) and acetone-based (PB) etch-and-rinse adhesive systems.Methods: The bottles of the two adhesives were kept at each temperature (58C, 208C, 378C, and 508C) for 2 hours before application to demineralized dentin surfaces of 40 molars. Specimens were prepared for lTBS testing. Bonded sticks (0.8 mm 2 ) were tested under tension (0.5 mm/min). Three bonded sticks from each tooth were immersed in silver nitrate and analyzed by scanning electron microscopy. The DC of the adhesives was evaluated by Fourier transformed infrared spectroscopy.Results: Lower lTBS was observed for PB at 508C. For SB, the lTBS values were similar for all temperatures. DC was higher at 508C for PB. Higher NL and thicker AL were observed for both adhesives in the 58C and 208C groups

No abstract

No abstract