title: Application of solubility parameter theory to dentin-bonding systems and adhesive strength correlations.
abstract: The principal aim of this study was to investigate the relationships between the solubility parameters of ectched dentin, and adhesive primer solutions and adhesive bond strength. Solubility parameters characterize the molecular interactions which determine physical properties such as wetting, and thus can serve as tools to aid development of polymeric adhesives and interpenetrating polymer networks. If an adhesive monomer has a solubility parameter close to that of a polymer substrate, then the monomer may act as a solvent for the polymer and penetrate below the surface. Subsequent polymerization of the monomer may then produce an interpenetrating network, thus adhering without necessarily forming primary chemical bonds to the substrate. The dentin substrate considered in this study was abraded dentin treated with ethylenediaminetetraaceitc acid. Solubility parameters delta pr, delta h, and delta d calculated for the etched dentin substrate were 20.3, 23.6, and 16.0 (J/cm3)1/2, respectively. Solubility parameters of the primers were expressed using Hansen's three-dimensional scheme. The data indicate a correlation between the calculated solubility parameters of the etched dentin, and dentin primers and the resulting bond strengths. The results corroborate the significance of solubility parameter considerations for adhesive bonding to dentin.
authors.affiliation: University of Missouri, Department of Mechanical and Aerospace Engineering, Kansas City 64110, USA.
authors.forename: R G
authors.initials: RG
authors.lastname: Miller
authors.forename: C Q
authors.initials: CQ
authors.lastname: Bowles
authors.forename: C C
authors.initials: CC
authors.lastname: Chappelow
authors.forename: J D
authors.initials: JD
authors.lastname: Eick
mesh_terms: D000134:Acid Etching, Dental; D003094:Collagen; D001840:Dental Bonding; D003764:Dental Materials / Q000737:chemistry*; D003804:Dentin / Q000737:chemistry*; D017220:Dentin-Bonding Agents / Q000737:chemistry*; D004492:Edetic Acid / Q000494:pharmacology; D005780:Gelatin; D005976:Glutaral / Q000737:chemistry; D008422:Materials Testing; D008956:Models, Chemical; D011109:Polymethacrylic Acids / Q000737:chemistry; D012995:Solubility
chemical_list: D003764:Dental Materials; D017220:Dentin-Bonding Agents; D011109:Polymethacrylic Acids; D005780:Gelatin; D003094:Collagen; C044372:Gluma; D004492:Edetic Acid; D005976:Glutaral