title: Effect of a caries-detecting solution on the tensile bond strength of four dentin adhesive systems.
abstract: This study investigated the effect of a caries-detecting solution on the tensile bond strength (TBS) to sound bovine dentin--which was either rinsed thoroughly of or contaminated with the caries-detecting solution. Caries Detector (1.0% acid red in propylene glycol) was applied on flat dentin surfaces for 10 seconds, rinsed, and dried with syringe air. In another group, Caries Detector was not rinsed but air-dried. Then, the surfaces were treated with one of the following adhesive systems: Clearfil Protect Bond, Clearfil SE Bond, One-Up Bond F, or Single Bond. Furthermore, an ingredient of Caries Detector, either 1.0% acid red aqueous solution or propylene glycol, was applied to evaluate the effect of each component. In the control groups, Caries Detector was not applied to the dentin surfaces. Finally, a resin composite was light-cured and the TBS measured. Fractured specimens and treated dentin surfaces were observed by SEM. Caries Detector did not reduce the tensile bond strength of any adhesive system (p>0.05) when rinsed thoroughly. On the other hand, when dentin surface was contaminated with Caries Detector, TBS decreased significantly with Clearfil SE Bond and Single Bond. As for the ingredients of Caries Detector, the effect of acid red on TBS was not significant, but that of propylene glycol was significant.
authors.affiliation: Division of Cariology, Department of Developmental and Reconstructive Medicine, Course of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences, Japan. yokoharu@net.nagasaki-u.ac.jp
authors.forename: Haruka
authors.initials: H
authors.lastname: Yokota
authors.forename: Shisei
authors.initials: S
authors.lastname: Kubo
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Yokota
authors.forename: Masahiro
authors.initials: M
authors.lastname: Ohsawa
authors.forename: Yoshihiko
authors.initials: Y
authors.lastname: Hayashi
mesh_terms: D000269:Adhesives / Q000737:chemistry*; D000704:Analysis of Variance; D000818:Animals; D002417:Cattle; D003731:Dental Caries / Q000175:diagnosis*; D003804:Dentin / Q000187:drug effects / Q000648:ultrastructure; D017220:Dentin-Bonding Agents / Q000737:chemistry*; D011409:Propylene Glycols / Q000494:pharmacology*; D012235:Rhodamines / Q000494:pharmacology*; D013499:Surface Properties; D013718:Tensile Strength
chemical_list: D000269:Adhesives; C089090:Caries Detector; D017220:Dentin-Bonding Agents; D011409:Propylene Glycols; D012235:Rhodamines