Open AccessInfluence of Etching Methods on the Shear Bond Strength of a Influence of Etching Methods on the Shear Bond Strength of a Universal Adhesive System to Sound and Artificial Caries-Affected Universal Adhesive System to Sound and Artificial Caries-Affected Dentin
Author(s) -
omnia sami,
essam naguib,
rasha afifi,
shaima nagi
Publication year - 2021
Publication title -
future dental journal/future dental journal
Language(s) - English
Resource type - Journals
eISSN - 2314-7199
pISSN - 2314-7180
DOI - 10.54623/fdj.70210
Subject(s) - dentin , bond strength , adhesive , materials science , composite material , etching (microfabrication) , universal testing machine , single bond , shear (geology) , dentistry , ultimate tensile strength , chemistry , layer (electronics) , group (periodic table) , medicine , organic chemistry
Purpose:This study tested the bond strength of a universal adhesive system to both caries-affected (CAD) and sound dentin after using different etching techniques. Methods: Forty premolars were wet grinded to expose flat occlusal midcoronal dentin. Specimens were equally divided according to the substrate into sound and (CAD) specimens which were exposed to pH- cycling for 14 days. Single Bond™ universal adhesive was used to bond each dentin substrate either after no etching or etching of dentin, after which, resin composite was used for build-up. These specimens were then tested for shear bond strength (SBS). The results were then analyzed by two-ways ANOVA. Results: Single Bond™ universal bonded to sound dentin had statistically significantly higher SBS mean values compared to CAD. Single Bond™ applied after separate etching step of dentin showed a statistically higher SBS compared to self-etching method when bonded to sound dentin. Conclusion: Separate etching improved bonding to sound dentin and did not influence the bond strength of tested universal adhesive to CAD.