The bonding effect of adhesive systems and bulk-fill composites to sound and caries-affected dentine. Issue 2 (17th January 2016)

• Record Type: Journal Article
• Authors: Tekçe, Neslihan; Tuncer, Safa; Demirci, Mustafa; Pashaev, Diial
• Is Part Of: Journal of adhesion science and technology. Volume 30:Issue 2(2016)
• Page Start: 171
• Page End: 185
• Publication Date: 2016-01-17
• Subjects: Bulk fill -- incremental fill -- resin composites -- restorative dentistry -- shear bond strength; Adhesion -- Periodicals; Adhesives -- Periodicals; 668.3
• DOI: 10.1080/01694243.2015.1095627
• Languages: English
• ISSNs: 0169-4243

Abstract

Abstract: Purpose: To investigate the influence of adhesive type and increment thickness on shear bond strength of flowable bulk-fill resin composites compared with a flowable conventional resin composite, in both sound and caries-affected dentine. Methods: Shear bond strength was tested in 100 extracted human molars with coronal dentine caries. Half of the teeth were restored with Adper™ Easy Bond and the other half with Adper™ Single Bond Plus. Bonded surfaces were restored with Filtek™ Ultimate Flow and two bulk-fill composites (SDR and X-tra base) ( n = 10 teeth for each subgroup). Restorations of 4 mm were performed with incremental or bulk-fill technique. The shear bond was determined and statistically analysed using three-way ANOVA and Bonferroni multiple comparison post hoc tests ( p ≤ 0.05). Dentine–resin interfaces were evaluated by scanning electron microscopy. Results: For both adhesives, the highest shear bond strength values were obtained for sound dentine. In sound dentine, the highest bond strength observed with Easy Bond when used in 2-mm increments of SDR. In caries-affected dentine, Single Bond in combination with SDR displayed significantly lower bond strength. Conclusion: There was no significant difference in shear bond strength between the incremental and bulk-fill groups for molars with sound dentine when the etch-and-rinse adhesive system was used; however, for the self-etch adhesive system, incremental application caused higher bond strength than bulk application.