Influence of different etching modes on bond strength and fatigue strength to dentin using universal adhesive systems. Issue 2 (February 2016)

• Record Type: Journal Article
• Authors: Takamizawa, Toshiki; Barkmeier, Wayne W.; Tsujimoto, Akimasa; Berry, Thomas P.; Watanabe, Hedehiko; Erickson, Robert L.; Latta, Mark A.; Miyazaki, Masashi
• Is Part Of: Dental materials. Volume 32:Issue 2(2016)
• Page Start: e9
• Page End: e21
• Publication Date: 2016-02
• Subjects: Universal adhesive -- Fatigue strength -- Dentin bond durability -- SEM observation; Dentistry -- Periodicals; Dental materials -- Periodicals; 617.695
• DOI: 10.1016/j.dental.2015.11.005
• Languages: English
• ISSNs: 0109-5641

Abstract

Abstract: Objectives: The purpose of this study was to determine the dentin bonding ability of three new universal adhesive systems under different etching modes using fatigue testing. Method: Prime & Bond elect [PE] (DENTSPLY Caulk), Scotchbond Universal [SU] (3M ESPE), and All Bond Universal [AU] (Bisco) were used in this study. A conventional single-step self-etch adhesive, Clearfil Bond SE ONE [CS] (Kuraray Noritake Dental) was also included as a control. Shear bond strengths (SBS) and shear fatigue strength (SFS) to human dentin were obtained in the total-etch mode and self-etch modes. For each test condition, 15 specimens were prepared for the SBS and 30 specimens for SFS. SEM was used to examine representative de-bonded specimens, treated dentin surfaces and the resin/dentin interface for each test condition. Results: Among the universal adhesives, PE in total-etch mode showed significantly higher SBS and SFS values than in self-etch mode. SU and AU did not show any significant difference in SBS and SFS between the total-etch mode and self-etch mode. However, the single-step self-etch adhesive CS showed significantly lower SBS and SFS values in the etch-and-rinse mode when compared to the self-etch mode. Examining the ratio of SFS/SBS, for PE and AU, the etch-and-rinse mode groups showed higher ratios than the self-etch mode groups. Significance: The influence of different etching modes on dentin bond quality of universal adhesives was dependent on the adhesive material. However, for the universal adhesives, using the total-etch mode did not have a negative impact on dentin bond quality.