title: Shear bond strength of orthodontic brackets with 3 self-etch adhesives.
abstract: BACKGROUND
  The purpose of this study was to compare shear bond strength and mode of failure of brackets bonded with 3 self-etching products.
  
  
  METHODS
  The products tested were (1) a recently developed, modified self-etching, 1-step adhesive system (Adper Prompt L-Pop Self Etch Adhesive, 3M, St Paul, Minn); (2) a new fluoride-releasing, antibacterial, self-etching adhesive system (Clearfil Protect Bond, Kuraray, Osaka, Japan); and (3) a fluoride-releasing, self-etching adhesive system (Transbond Plus Self Etching Primer, 3M). Thirty-six defect-free premolars were randomly divided into 3 groups (n = 12 each), and metal brackets were bonded according to the manufacturer's instructions. Brackets were debonded in shear on a universal testing machine with a crosshead speed of 1 mm per minute.
  
  
  RESULTS
  One-way ANOVA showed a statistically significant (P < .001) difference between groups. Group 2 had the highest shear bond strength. The difference between groups 1 and 3 was not statistically significant. The Kruskal-Wallis test showed no significant differences in the ARI scores (P = .595; P < .05).
  
  
  CONCLUSIONS
  The fluoride-releasing, antibacterial, self-etching adhesive system, Clearfil Protect Bond, produced greater shear bond strength than the other 2 products tested and could be considered for clinical use.
authors.affiliation: Department of Conservative Dentistry, Faculty of Dentistry, Baskent University, Ankara, Turkey. neslihan@baskent.edu.tr
authors.forename: Neslihan
authors.initials: N
authors.lastname: Arhun
authors.forename: Ayça
authors.initials: A
authors.lastname: Arman
authors.forename: Cagla
authors.initials: C
authors.lastname: Sesen
authors.forename: Erdem
authors.initials: E
authors.lastname: Karabulut
authors.forename: Yonca
authors.initials: Y
authors.lastname: Korkmaz
authors.forename: Saadet
authors.initials: S
authors.lastname: Gokalp
mesh_terms: D000134:Acid Etching, Dental / Q000379:methods*; D000704:Analysis of Variance; D001641:Bicuspid; D017438:Bisphenol A-Glycidyl Methacrylate; D001840:Dental Bonding; D003799:Dental Stress Analysis; D017220:Dentin-Bonding Agents; D006801:Humans; D008422:Materials Testing; D010755:Organophosphates; D019279:Resin Cements; D033081:Shear Strength; D018709:Statistics, Nonparametric
chemical_list: C489661:Adper Prompt Self-Etch; C503075:Clearfil Protect Bond; D017220:Dentin-Bonding Agents; D010755:Organophosphates; C408584:Prompt L-Pop; D019279:Resin Cements; C429625:Transbond Plus Self-Etching Primer; C477790:Transbond XT; D017438:Bisphenol A-Glycidyl Methacrylate