title: Self-etch or etch-and-rinse mode did not affect the microshear bond strength of a universal adhesive to primary dentin.
abstract: This study evaluated the microshear bond strength (µSBS) of resin composite to primary dentin using a universal adhesive in etchand-rinse mode or self-etch mode. Flat ground dentin surfaces were created on forty extracted human primary incisors and randomly assigned into four groups (n=10): Adper Single Bond II (ASB), Clearfil SE Bond (CSE), Single Bond Universal etch-and-rinse (SBUER) and Single Bond Universal self-etch (SBU-SE). Adhesive was applied on the dentin surface, which was subsequently bonded with a resin composite. The µSBS test was performed using a universal testing machine at a crosshead speed of 1 mm/min. The ASB group generated a lower mean µSBS (19.1±3.4 MPa) than those of the other groups [SBU-ER (24.3±2.7 MPa), SBU-SE (25.1±2.4 MPa), and CSE (25.3±2.7 MPa)]. Adhesive failure was the most common failure mode in each group. In conclusion, SBU used in etch-and-rinse or self-etch mode resulted in similar bond strength to primary dentin.
authors.affiliation: Department of Pediatric Dentistry, Faculty of Dentistry, Chulalongkorn University.
authors.forename: Benjaporn
authors.initials: B
authors.lastname: Thanaratikul
authors.forename: Busayarat
authors.initials: B
authors.lastname: Santiwong
authors.forename: Choltacha
authors.initials: C
authors.lastname: Harnirattisai
mesh_terms: D003188:Composite Resins; D001840:Dental Bonding; D003738:Dental Cements; D003804:Dentin; D017220:Dentin-Bonding Agents; D006801:Humans; D008422:Materials Testing; D019279:Resin Cements; D013718:Tensile Strength; D014094:Tooth, Deciduous
chemical_list: D003188:Composite Resins; D003738:Dental Cements; D017220:Dentin-Bonding Agents; D019279:Resin Cements