title: Comparative shear bond strength of some orthodontic bonding resins to enamel.
abstract: The aim of this study was to compare the in vitro bond strength, to bovine enamel measured in shear, of the orthodontic adhesives Lee Insta-bond (LiB), Rely-a-Bond (RaB), Right-on (Ro), Concise precoating method (Cc), Concise mixed method (CaB), Super-C (Sc), and Orthon (Or), and of the glass ionomer cement Ketac-Cem (KC). The fracture surfaces after debonding were also examined in order to determine the sites of failure. The results indicate that there is a significant difference between the shear bond strength obtained with the different adhesives so that the mean shear bond strength decreases in the order [Ro approximately Cab approximately Sc] > [LiB approximately RaB approximately Cc] > Or > KC. Moreover, for Cab and Sc it was found that the shear bond strength varies depending on the location on the bovine tooth. The failure site was essentially at the resin-bracket interface, except for Concise, where only 50 per cent of the cases failed at the resin-bracket interface.
authors: Department of Orthodontics, University of Gent, Gent, Belgium.
authors: L M
authors: LM
authors: Trimpeneers
authors: R M
authors: RM
authors: Verbeeck
authors: L R
authors: LR
authors: Dermaut
authors: M G
authors: MG
authors: Moors
mesh_terms: D000269:Adhesives / Q000737:chemistry; D000818:Animals; D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry; D002417:Cattle; D003188:Composite Resins / Q000737:chemistry; D001840:Dental Bonding; D003738:Dental Cements / Q000737:chemistry*; D003743:Dental Enamel / Q000648:ultrastructure; D005899:Glass Ionomer Cements / Q000737:chemistry; D008277:Magnesium Oxide / Q000737:chemistry; D009967:Orthodontic Appliances; D011076:Polycarboxylate Cement / Q000737:chemistry; D019279:Resin Cements; D012117:Resins, Synthetic / Q000737:chemistry*; D013314:Stress, Mechanical; D013499:Surface Properties; D015034:Zinc Oxide / Q000737:chemistry
chemical_list: D000269:Adhesives; D003188:Composite Resins; D003738:Dental Cements; D005899:Glass Ionomer Cements; D011076:Polycarboxylate Cement; C097531:Rely a Bond system; D019279:Resin Cements; D012117:Resins, Synthetic; C074577:Lee Bond; C071164:Right-On cement; D008277:Magnesium Oxide; D017438:Bisphenol A-Glycidyl Methacrylate; C040235:Ketac-cem; C040201:Super C resin; D015034:Zinc Oxide