Ethanol-wet bonding may improve root dentine bonding performance of hydrophobic adhesive

Journal of Dentistry
Dandan PeiJing Zhang

Abstract

The current study aimed to assess ethanol-wet dentine surfaces by atomic force microscopy (AFM), and to evaluate the efficacy of ethanol-wet bonding on root dentine by determining the shear bond strength (SBS) and interfacial nanoleakage expression. Flat dentine slices from human premolar roots were randomly grouped into five. All specimens were acid-etched, rinsed, and left moist. They were then treated with 100% ethanol for 0s (control group), 20s (Group 1), 60s (Group 2), three 60s periods (Group 3), or stepwise ethanol application (Group 4). After treatment, each group was bonded either with Adper™ Scotchbond™ Multi-Purpose (Scotchbond) or experimental hydrophobic adhesive. Nano-scale adhesion forces (Fad) were probed by AFM and analysed using one-way ANOVA. The SBS results were analysed using two-way ANOVA. Tukey's test was employed for multiple comparisons. Ethanol-wet protocols significantly decreased the value of Fad (p<0.001). When bonded with Scotchbond, ethanol treatment did not affect the bond strength (p>0.05), but decreased the interfacial nanoleakage. The SBS values of the groups bonded with hydrophobic adhesive varied with different ethanol-wet protocols (p<0.05). Decreased nanoleakage was manifested in all expe...Continue Reading

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Citations

May 1, 1993·Dental Materials : Official Publication of the Academy of Dental Materials·B HallerU Bloching
Feb 25, 2014·Journal of Dentistry·Manikandan EkambaramNigel Martyn King
Jun 19, 2018·Journal of Prosthodontic Research·Taichi IwashitaHirofumi Yatani
May 4, 2018·Brazilian Oral Research·Carlos Augusto de Morais Souto PantojaJosé Flávio Affonso de Almeida
Jun 15, 2021·Clinical Oral Investigations·Esra KosanKerstin Bitter

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