Effects of Dentin Bonding Agents on Bonding Durability of a Flowable Composite to Dentin

• Published in: Dental Materials Journal Vol. 26; no. 2; pp. 224 - 231
• Main Authors: NAM, Ki-Young, KIM, Jong-Bae, JANG, Byeong-Churl, KWON, Tae-Yub, KIM, Kyo-Han
• Format: Journal Article
• Language: English
• Published: Japan The Japanese Society for Dental Materials and Devices 2007
• Subjects: Analysis of Variance; Animals; Cattle; Composite Resins; Dental Bonding; Dental Restoration Failure; Dental Stress Analysis; Dentin; Dentin adhesives; Dentin-Bonding Agents; Dentistry; Drug Storage; Flowable composite; Materials Testing; Resin Cements; Rheology; Shear bond strength; Shear Strength; Time Factors
• ISSN: 0287-4547; 1881-1361
• DOI: 10.4012/dmj.26.224

The present study evaluated the bonding durability of a flowable composite on bovine dentin using dentin bonding agents with different numbers of application steps: Scotchbond Multipurpose (three steps), Prime & Bond NT and One-Step (two steps), AQ Bond and Prompt L-Pop (one step). Shear bond strength tests were performed, and resin-dentin interface and fracture mode were observed. There were no significant differences in bond strength among the specimens within 37°C storage group (p>0.05) and post-thermocycling group, except between Prompt L-Pop and Scotchbond Multipurpose (p<0.05) in the post-thermocycling group. Further, Scotchbond Multipurpose and One-Step showed significantly lower bond strengths after thermocycling (p<0.05). It was thus shown that the use of simplified bonding agents did not necessarily improve the bonding strength of flowable composites.