title: Evaluation of the fluoride release from orthodontic band cements.
abstract: OBJECTIVE
  To compare the fluoride levels released from a polyacid-modified resin composite (Ultra BandLok), a resin-modified glass-ionomer cement (Multicure) and a conventional glass-ionomer cement (Meron).
  
  
  METHODS
  Fluoride concentration in the deionized water was measured at 1, 2, 3, 7, 14 and 28 days. Fluoride measurement was undertaken using a fluoride ion selective electrode connected to an ion-analyzer. Friedman test was used in the repeated measurements of multiple groups. Kruskal-Wallis test was used to compare the groups. Dunn's multiple comparison test was applied for the comparison of subgroups.
  
  
  RESULTS
  The fluoride release pattern of the three materials was similar. The highest level of fluoride was obtained at the 24-hour measurement from all samples. According to comparisons among materials, Ultra BandLok released significantly less fluoride than Multicure and Meron (P < or = 0.01) at all the measurement times. In addition, the differences between the fluoride concentrations released from Multicure and Meron materials at all measurement days were not significant (P> 0.05).
authors.affiliation: Department of Pediatric Dentistry, Faculty of Dentistry, Yeditepe University, Istanbul, Turkey. sskuvvetli@yahoo.com.tr
authors.forename: Senem Selvi
authors.initials: SS
authors.lastname: Kuvvetli
authors.forename: Elif Bahar
authors.initials: EB
authors.lastname: Tuna
authors.forename: Sule Kavaloğlu
authors.initials: SK
authors.lastname: Cildir
authors.forename: Nüket
authors.initials: N
authors.lastname: Sandalli
authors.forename: Koray
authors.initials: K
authors.lastname: Gençay
mesh_terms: D002327:Cariostatic Agents / Q000008:administration & dosage*; D001840:Dental Bonding; D005459:Fluorides / Q000008:administration & dosage*; D005899:Glass Ionomer Cements; D017736:Ion-Selective Electrodes; D008422:Materials Testing; D009967:Orthodontic Appliances; D019279:Resin Cements; D013027:Space Maintenance, Orthodontic / Q000295:instrumentation; D018709:Statistics, Nonparametric
chemical_list: D002327:Cariostatic Agents; D005899:Glass Ionomer Cements; C488845:Meron; C516145:Multicure cement; D019279:Resin Cements; C508229:Ultra Band-Lok; D005459:Fluorides