The objective was to evaluate the influence of active bonding applications (ABA) for different time intervals after selective dentin etching (SDE) for 3 s on the microtensile bond strength (μTBS) to dentin of two universal adhesive systems (UAs): one containing 2-hydroxyethyl methac-rylate (HEMA) (Scotchbond Universal, SBU), and one that was HEMA-free (Prime&Bond Univer-sal, PBU). Dentin bovine specimens were divided into four groups: self-etch as control (SE), SDE + ABA for 15 s (SDE15), SDE + ABA for 20 s (SDE20), and SDE + ABA for 25 s (SDE25). The μTBS test was performed after a water storage of 24 h and 6 months. Scanning electron microscopy (SEM) was used in order to examine the resin–dentin interface. For the PBU, the μTBS was significantly influ-enced only by the aging factor (p < 0.026). A statistically significant decrease in the μTBS after 6 months of aging was observed only for the SDE15 group. For SBU, μTBS was significantly influ-enced by the protocol application and the aging time (p ≤ 0.041). The groups SDE15, SDE20, and SDE25 achieved statistically significant higher values (after 24 h and 6 months). No considerable variances were noticed in the homogeneity and continuity of the hybrid layer (HL) among the groups. In conclusion, SDE and ABA improved the μTBS only of a HEMA-containing universal adhesive.
Effect of Active Bonding Application after Selective Dentin Etching on the Immediate and Long-Term Bond Strength of Two Universal Adhesives to Dentin / Hardan, L.; Orsini, G.; Bourgi, R.; Cuevas-Suarez, C. E.; Nicastro, M.; Lazarescu, F.; Filtchev, D.; Cornejo-Rios, E.; Zamarripa-Calderon, J. E.; Sokolowski, K.; Lukomska-Szymanska, M.. - In: POLYMERS. - ISSN 2073-4360. - 14:6(2022), p. 1129. [10.3390/polym14061129]
Effect of Active Bonding Application after Selective Dentin Etching on the Immediate and Long-Term Bond Strength of Two Universal Adhesives to Dentin
Orsini G.Co-primo
Conceptualization
;
2022-01-01
Abstract
The objective was to evaluate the influence of active bonding applications (ABA) for different time intervals after selective dentin etching (SDE) for 3 s on the microtensile bond strength (μTBS) to dentin of two universal adhesive systems (UAs): one containing 2-hydroxyethyl methac-rylate (HEMA) (Scotchbond Universal, SBU), and one that was HEMA-free (Prime&Bond Univer-sal, PBU). Dentin bovine specimens were divided into four groups: self-etch as control (SE), SDE + ABA for 15 s (SDE15), SDE + ABA for 20 s (SDE20), and SDE + ABA for 25 s (SDE25). The μTBS test was performed after a water storage of 24 h and 6 months. Scanning electron microscopy (SEM) was used in order to examine the resin–dentin interface. For the PBU, the μTBS was significantly influ-enced only by the aging factor (p < 0.026). A statistically significant decrease in the μTBS after 6 months of aging was observed only for the SDE15 group. For SBU, μTBS was significantly influ-enced by the protocol application and the aging time (p ≤ 0.041). The groups SDE15, SDE20, and SDE25 achieved statistically significant higher values (after 24 h and 6 months). No considerable variances were noticed in the homogeneity and continuity of the hybrid layer (HL) among the groups. In conclusion, SDE and ABA improved the μTBS only of a HEMA-containing universal adhesive.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.