title: Surface free-energy measurements as indicators of the bonding characteristics of single-step self-etching adhesives.
abstract: This study examined the surface free-energy of dentin treated with the single-step self-etching adhesives Bond Force, Clearfil tri-S Bond, and G-Bond Plus. The labial dentin surfaces of bovine mandibular incisors were wet ground with #180-, #600-, and #2,000-grit silicon carbide paper. The adhesives were applied to the ground dentin, and then rinsed with acetone and distilled water. The surface free-energies were determined by measuring the contact angles of three test liquids placed on the adhesive-treated dentin. The surface free-energies of the samples treated with the G-Bond Plus and Clearfil tri-S Bond adhesives increased as the surface roughness decreased. No significant differences in the surface free-energy were found for the samples treated with the Bond Force adhesive, regardless of the surface roughness. These results indicated that dentin surfaces treated with adhesives did not promote a higher surface-energy state, and that differences in the components of surface energy were apparent for the adhesives tested.
authors.affiliation: Department of Operative Dentistry, Nihon University School of Dentistry, Tokyo, Japan.
authors.forename: Naoki
authors.initials: N
authors.lastname: Inoue
authors.forename: Akimasa
authors.initials: A
authors.lastname: Tsujimoto
authors.forename: Masayuki
authors.initials: M
authors.lastname: Takimoto
authors.forename: Eiichiro
authors.initials: E
authors.lastname: Ootsuka
authors.forename: Hajime
authors.initials: H
authors.lastname: Endo
authors.forename: Toshiki
authors.initials: T
authors.lastname: Takamizawa
authors.forename: Masashi
authors.initials: M
authors.lastname: Miyazaki
mesh_terms: D000818:Animals; D002417:Cattle; D003188:Composite Resins; D001840:Dental Bonding; D045662:Dental Etching / Q000379:methods; D003804:Dentin; D017220:Dentin-Bonding Agents; D019279:Resin Cements; D013499:Surface Properties; D013816:Thermodynamics; D017155:Wettability
chemical_list: D003188:Composite Resins; D017220:Dentin-Bonding Agents; D019279:Resin Cements