title: Evaluation of microtensile bond strength of different fissure sealants to bovine enamel.
abstract: BACKGROUND
  The aim of this study was to evaluate the microtensile bond strength (μTBS) of a new fissure sealant and compare it with conventional sealants which are applied to enamel alone, and also with self-etch and etch-and-rinse adhesives.
  
  
  METHODS
  Enamel specimens were prepared and randomly distributed into three groups according to fissure sealant (Aegis, Helioseal F, Helioseal Clear). Each group was then subdivided according to adhesive system (Clearfil S3, Single Bond, no adhesive). A universal testing machine was used to measure μTBS, and data were analysed using one-way ANOVA and Tukey's tests.
  
  
  RESULTS
  μTBS values for all Aegis subgroups were significantly lower than for comparable Helioseal F and Helioseal Clear subgroups (p < 0.05). No differences were observed in μTBS of Helioseal F and Helioseal Clear (p > 0.05). In the Helioseal Clear group, μTBS values for Single Bond were significantly higher than for Clearfil S3 (p < 0.05). However, no significant differences were found between the μTBS values of the adhesive subgroups in the Aegis or Helioseal F groups (p > 0.05).
  
  
  CONCLUSIONS
  Sealant μTBS values may be affected by material content. The addition of an adhesive may improve μTBS values of sealant to enamel.
authors.affiliation: Department of Paediatric Dentistry, Faculty of Dentistry, University of Ondokuz Mayıs, Samsun, Turkey.
authors.forename: E
authors.initials: E
authors.lastname: Sen Tunc
authors.forename: S
authors.initials: S
authors.lastname: Bayrak
authors.forename: N
authors.initials: N
authors.lastname: Tuloglu
authors.forename: E
authors.initials: E
authors.lastname: Ertas
mesh_terms: D000818:Animals; D017438:Bisphenol A-Glycidyl Methacrylate; D002417:Cattle; D001840:Dental Bonding; D003743:Dental Enamel; D045662:Dental Etching / Q000379:methods; D003799:Dental Stress Analysis; D017220:Dentin-Bonding Agents; D010895:Pit and Fissure Sealants; D011897:Random Allocation; D019279:Resin Cements; D013718:Tensile Strength
chemical_list: C505694:Clearfil S3 Bond; D017220:Dentin-Bonding Agents; D010895:Pit and Fissure Sealants; D019279:Resin Cements; C115612:single bond; D017438:Bisphenol A-Glycidyl Methacrylate