title: Effect of warm air-drying on dentin bond strength of single-step self-etch adhesives.
abstract: The effect of warm air-drying on the dentin bond strengths of the single-step self-etch adhesives was determined. The adhesives were applied to bovine dentin followed by drying in a stream of warm air for 5, 10, and 15 s at 37°C. Resin composites were condensed into a mold and polymerized. Specimens were stored in distilled water at 37°C for 24 h, then shear tested. The surface free-energies were determined by measuring the contact angles of three test liquids placed on the cured adhesives. The dentin bond strengths varied according to the air-drying time. The value of the acid component increased slightly when drying was performed with a stream of warm air, whereas that of the base component decreased significantly. These data suggested that warm air-drying was essential to obtain adequate bond strengths, although increasing the drying time did not significantly influence the bond strength.
authors.affiliation: Department of Operative Dentistry, Nihon University School of Dentistry, Tokyo, Japan.
authors.forename: Yukari
authors.initials: Y
authors.lastname: Ogura
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Shimizu
authors.forename: Koji
authors.initials: K
authors.lastname: Shiratsuchi
authors.forename: Akimasa
authors.initials: A
authors.lastname: Tsujimoto
authors.forename: Toshiki
authors.initials: T
authors.lastname: Takamizawa
authors.forename: Susumu
authors.initials: S
authors.lastname: Ando
authors.forename: Masashi
authors.initials: M
authors.lastname: Miyazaki
mesh_terms: D000134:Acid Etching, Dental; D000388:Air; D000818:Animals; D002417:Cattle; D001840:Dental Bonding; D003799:Dental Stress Analysis; D017220:Dentin-Bonding Agents; D003890:Desiccation; D006358:Hot Temperature; D019279:Resin Cements / Q000737:chemistry*; D033081:Shear Strength; D013997:Time Factors; D017155:Wettability
chemical_list: D017220:Dentin-Bonding Agents; D019279:Resin Cements