title: Bond strength of brackets bonded with an adhesion promoter.
abstract: OBJECTIVE
  Enhance-L.C. is an orthodontic adhesion promoter. Our aim was to find out if this product is material-specific as stated by its manufacturers or whether its effects are similar when the promoter is used with other adhesive systems.
  
  
  METHODS
  In vitro study.
  
  
  METHODS
  Dental Clinic. University of Murcia, Spain, 2002.
  
  
  METHODS
  Enhance-L.C. was used with one of the manufacturer's recommended adhesives, Light-Bond, and with a second from another manufacturer, Transbond-XT. One hundred premolars were divided into four groups of 25 premolars: 1)Transbond-XT, 2) Transbond-XT/Enhance-L.C., 3) Light-Bond, 4) Light-Bond/Enhance-L.C.
  
  
  METHODS
  Shear bond strength was evaluated with a universal test machine and the adhesive remaining after debonding was determined using image analysis equipment.
  
  
  RESULTS
  Enhance-L.C. did not significantly increase the bond strength of either of the two systems (P > 0.008). However, Light-Bond/Enhance-L.C. provided a bond strength significantly greater (P < 0.008) than Transbond-XT and Transbond-XT/Enhance-L.C. Light-Bond also left significantly (P < 0.05) less adhesive remaining on the enamel than Transbond-XT, whether or not either of the systems were used with Enhance-L.C.
  
  
  CONCLUSIONS
  The use of Enhance-L.C with Light-Bond is to be recommended whenever extra bond strength is needed.
authors.affiliation: Docent Unit of Orthodontics, Dental Clinic, University of Murcia, Spain. ascenvi@um.es
authors.forename: A
authors.initials: A
authors.lastname: Vicente
authors.forename: L A
authors.initials: LA
authors.lastname: Bravo
authors.forename: M
authors.initials: M
authors.lastname: Romero
authors.forename: A J
authors.initials: AJ
authors.lastname: Ortíz
authors.forename: M
authors.initials: M
authors.lastname: Canteras
mesh_terms: D000134:Acid Etching, Dental; D000268:Adhesiveness; D016009:Chi-Square Distribution; D003188:Composite Resins / Q000737:chemistry; D001840:Dental Bonding; D003743:Dental Enamel / Q000648:ultrastructure; D003799:Dental Stress Analysis / Q000295:instrumentation; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008422:Materials Testing; D016910:Orthodontic Brackets; D019279:Resin Cements / Q000737:chemistry*; D033081:Shear Strength; D018709:Statistics, Nonparametric; D013314:Stress, Mechanical; D013499:Surface Properties
chemical_list: D003188:Composite Resins; C414342:Enhance LC; D019279:Resin Cements; C477790:Transbond XT