title: Bond strength of stainless steel orthodontic brackets bonded to prefabricated acrylic teeth.
abstract: The purpose of this in-vitro study was to evaluate the force to debond stainless steel orthodontic brackets bonded to acrylic teeth using different combinations of adhesive and surface treatments.
  
  
  
  One hundred prefabricated upper lateral incisor acrylic teeth were divided into 4 equal groups: Transbond XT® adhesive only (Group 1, control), Transbond XT® adhesive with sandblasting (Group 2), Transbond XT® adhesive with abrasion / + methyl methacrylate (MMA) (Group 3) and Triad® Gel only (Group 4). The force in Newtons (N) to debond the brackets was measured. One-way analysis of variance (ANOVA) and pairwise multi-comparison of means (Šidak's adjustment) were undertaken.
  
  
  
  The highest force to debond was recorded for Group 2 (275.7 N; SD 89.0) followed by Group 3 (241.9 N; SD 76.0), Group 1 (142.7 N; SD 36.7) and Group 4 (67.9 N; SD 21.1). Significant differences in bond strength measurements between the experimental groups were detected. Mean force values for the groups revealed no significant differences between Group 2 and Group 3 (p>0.05).
  
  
  
  Both sandblasting and surface abrasion/+ application of methyl methacrylate (MMA) in combination with Transbond XT® adhesive are recommended for bonding stainless orthodontic brackets to acrylic teeth.
authors.affiliation: a Department of Orthodontics , King's College London Dental Institute, Floor 22, Guy's Hospital, Guy's and St Thomas NHS Foundation Trust , London , UK.
authors.forename: Wan Salbiah
authors.identifier: 0000-0003-3151-9887
authors.initials: WS
authors.lastname: Wan Abdul Razak
authors.affiliation: b School of Oral and Dental Sciences, Bristol Dental Hospital, University of Bristol and Kings College London Dental Institute, Guy's and St Thomas NHS Foundation Trust , London , WC2R 2LS , United Kingdom.|c Kings College London Dental Institute at Guy's, King's College and St Thomas' Hospitals , London , UK.
authors.forename: Martyn
authors.initials: M
authors.lastname: Sherriff
authors.affiliation: a Department of Orthodontics , King's College London Dental Institute, Floor 22, Guy's Hospital, Guy's and St Thomas NHS Foundation Trust , London , UK.
authors.forename: Dirk
authors.initials: D
authors.lastname: Bister
authors.affiliation: a Department of Orthodontics , King's College London Dental Institute, Floor 22, Guy's Hospital, Guy's and St Thomas NHS Foundation Trust , London , UK.
authors.forename: Jadbinder
authors.initials: J
authors.lastname: Seehra
mesh_terms: D001840:Dental Bonding; D003799:Dental Stress Analysis; D008422:Materials Testing; D016910:Orthodontic Brackets; D019279:Resin Cements; D033081:Shear Strength; D013193:Stainless Steel
chemical_list: D019279:Resin Cements; D013193:Stainless Steel
keywords: Bond strength; acrylic teeth; orthodontic brackets; pontics