title: [The effects of fluoride on the bonding strength of brackets].
abstract: OBJECTIVE
  To evaluate the effect of using fluoride during and after etching on the bonding strength of brackets.
  
  
  METHODS
  45 extracted human premolar were divided into three groups: Group 1, control, not applying fluoride. Group 2, applying fluoride during etching. Group 3, applying fluoride after etching. In each group, the teeth were treated with etching and fluoride respectively and stored in water for 24 hours. Then brackets bonding strength were measured.
  
  
  RESULTS
  The results showed that there was not significant difference among the three groups.
  
  
  CONCLUSIONS
  Fluoride can be used to prevent enamel white spot.
authors.affiliation: College of Stomatology, West China University of Medical Sciences.
authors.forename: G
authors.initials: G
authors.lastname: Pang
authors.forename: D
authors.initials: D
authors.lastname: Bai
authors.forename: Y
authors.initials: Y
authors.lastname: Chen
authors.forename: Q
authors.initials: Q
authors.lastname: Li
mesh_terms: D000134:Acid Etching, Dental; D001641:Bicuspid / Q000187:drug effects; D003731:Dental Caries / Q000517:prevention & control; D005460:Fluorides, Topical / Q000494:pharmacology*; D006801:Humans; D066298:In Vitro Techniques; D016910:Orthodontic Brackets; D013718:Tensile Strength
chemical_list: D005460:Fluorides, Topical