title: Bond strength of an adhesive resin system with various dental substrates.
abstract: A laboratory study was conducted to evaluate the Panavia 21 resin-based adhesive system as a bonding agent between a variety of dental substrates. Panavia 21 resin was bonded directly to enamel and dentin and placed between nickel-chromium-beryllium (Ni-Cr-Be) specimens and enamel, dentin, other Ni-Cr-Be samples, and type III gold. Panavia 21 resin was also used to bond amalgam to dentin. Shear bond strengths were determined at 24 hours and after thermocycling at 3 months. The results of this study at both the 24-hour and the 3-months test periods indicate that the enamel bond strengths of Panavia 21 resin (24 hours, 19.3 +/- 5.5 MPa; 3 months, 23.7 +/- 4.4 MPa) exceeded its dentin bond strengths (24 hours, 7.8 +/- 1.4 MPa; 3 months, 8.8 +/- 3.2 MPa). The bond strengths between Panavia 21 resin and Ni-Cr-Be alloy (24 hours, 16.3 +/- 3.4 MPa; 3 months, 17.6 +/- 2.7 MPa) and those for Panavia 21 resin between Ni-Cr-Be alloy and dentin (24 hours, 18.7 +/- 4.2 MPa; 3 months, 19.8 +/- 5.3 MPa) were comparable to adhesive enamel bond strengths. High bond strengths were also generated by Panavia 21 resin between Ni-Cr-Be alloy and type III gold (24 hours, 39.3 +/- 5.9 MPa; 3 months, 35.5 +/- 7.1 MPa). The greatest bond strengths observed during both test time periods for Panavia 21 resin were between Ni-Cr-Be alloy and enamel (24 hours, 54.2 +/- 10.7 MPa; 3 months, 56.4 +/- 7.1 MPa) and between two samples of Ni-Cr-Be alloy (24 hours, 55.1 +/- 5.6 MPa; 3 months, 49.1 +/- 8.6 MPa). Panavia 21 resin produced high bond strengths between a variety of dental substrates commonly used for the placement of fixed prosthodontic restorations.
authors.affiliation: Department of Operative Dentistry, School of Dentistry, Creighton University, Omaha, NE 68178, USA.
authors.forename: P T
authors.initials: PT
authors.lastname: Triolo
authors.forename: W P
authors.initials: WP
authors.lastname: Kelsey
authors.forename: W W
authors.initials: WW
authors.lastname: Barkmeier
mesh_terms: D000269:Adhesives / Q000737:chemistry*; D002858:Chromium Alloys / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry*; D003723:Dental Amalgam / Q000737:chemistry; D001840:Dental Bonding; D003738:Dental Cements / Q000737:chemistry; D003743:Dental Enamel / Q000648:ultrastructure*; D003764:Dental Materials / Q000737:chemistry*; D003799:Dental Stress Analysis; D003804:Dentin / Q000648:ultrastructure*; D006047:Gold Alloys / Q000737:chemistry; D006801:Humans; D010710:Phosphates / Q000737:chemistry*; D019279:Resin Cements; D013314:Stress, Mechanical; D013816:Thermodynamics; D013997:Time Factors
chemical_list: D000269:Adhesives; D002858:Chromium Alloys; D003188:Composite Resins; D003738:Dental Cements; D003764:Dental Materials; D006047:Gold Alloys; C093719:Panavia TPN-S; D010710:Phosphates; D019279:Resin Cements; D003723:Dental Amalgam