title: Shear bond strength of different retainer wires and bonding adhesives in consideration of the pretreatment process.
abstract: BACKGROUND
  We aimed to compare the shear bond strength (SBS) of three different retainer wires and three different bonding adhesives in consideration of the pretreatment process of enamel surface sandblasting.
  
  
  METHODS
  400 extracted bovine incisors were divided into 10 groups of 20 paired specimens each. 10 specimens of each group were pretreated by enamel sandblasting. The retainer wires Bond-A-Braid™, GAC-Wildcat®-Twistflex and everStick®ORTHO were bonded to the teeth with the adhesives Transbond™-LR, Tetric-EvoFlow™ and Stick®FLOW and then debonded measuring the SBS.
  
  
  RESULTS
  While sandblasting generally increased SBS for all tested combinations, the retainer wires bonded with Transbond™-LR showed the highest SBS both with and without prior sandblasting. Significantly lower SBS were found for Tetric-EvoFlow™ that were comparable to those for everStick®ORTHO.
  
  
  CONCLUSIONS
  Pretreatment of enamel surfaces by sandblasting increased the SBS of all retainer-wires. Transbond™-LR showed the best results compared to Tetric-EvoFlow™ and everStick®ORTHO, while all combinations used provided sufficient bonding strengths for clinical use.
authors.forename: Claudia
authors.initials: C
authors.lastname: Reicheneder
authors.forename: Bernd
authors.initials: B
authors.lastname: Hofrichter
authors.forename: Andreas
authors.initials: A
authors.lastname: Faltermeier
authors.forename: Peter
authors.initials: P
authors.lastname: Proff
authors.affiliation: Department of Orthodontics, University of Muenster, Waldeyerstraße 30, 48149 Muenster, Germany. lippold@uni-muenster.de.
authors.forename: Carsten
authors.initials: C
authors.lastname: Lippold
authors.forename: Christian
authors.initials: C
authors.lastname: Kirschneck
mesh_terms: D000269:Adhesives / Q000737:chemistry*; D000818:Animals; D002417:Cattle; D001840:Dental Bonding / Q000295:instrumentation*; D003799:Dental Stress Analysis; D004195:Disease Models, Animal; D008310:Malocclusion / Q000628:therapy*; D016910:Orthodontic Brackets; D033081:Shear Strength
chemical_list: D000269:Adhesives