title: Comparative evaluation of shear bond strength of three flowable compomers on enamel of primary teeth: An in-vitro study.
abstract: BACKGROUND
  The aim of the present study was to determine Shear bond strength (SBS) of different flowable compomers on the enamel surface of primary teeth. The null hypothesis to be tested was that none of the flowable compomer would differ significantly from the other two with respect to SBS. As a result, the tested materials that have the easiest application on child patient is preferred.
  
  
  METHODS
  Sixty newly extracted non carious primary molars were selected. The buccal surface was cleaned and polished to obtain a flat enamel surface. The specimens were randomly divided into three groups of 20 teeth each, based on the flowable compomers applied, as follows: group I: Dyract Flow® (Dentsply, Konstanz, Germany); group II: Twinky Star Flow® (Voco, Cuxhaven, Germany); and group III: R&D Series Nova Compomer Flow® (Imicryl, Konya, Turkey).
  
  
  RESULTS
  SBS in group II (6.78± 0.45 MPa) were significantly lower than groups I and III (8.30 ± 0.29 and 8.43 ± 0.66 MPa, respectively) (P<.001). No significant difference was found between groups I and III (P<.05).
  
  
  CONCLUSIONS
  Significant differences existed between the SBS of the groups. Therefore, the null hypothesis was rejected. Flowable compomers can provide adequate SBS with self-etching system at restoration of primary teeth. Thus, successful restorations in pediatric patients can be done in a practical way.
  
  
  BACKGROUND
  Flowable compomer, primary teeth, shear bond strength.
authors.affiliation: Assist. Prof. Dr., Akdeniz University, Faculty of Dentistry, Department of Paediatric Dentistry, Antalya, Turkiye.
authors.forename: Özge-Erken
authors.initials: ÖE
authors.lastname: Güngör
authors.affiliation: Assist. Prof. Dr., Pamukkale University, Faculty of Dentistry, Department of Paediatric Dentistry, Denizli, Turkiye.
authors.forename: Yıldırım
authors.initials: Y
authors.lastname: Erdoğan
authors.affiliation: Assist. Prof. Dr., Akdeniz University, Faculty of Dentistry, Department of Paediatric Dentistry, Antalya, Turkiye.
authors.forename: Ahmet
authors.initials: A
authors.lastname: Yalçın-Güngör
authors.affiliation: Assoc. Prof. Dr., Akdeniz University, Faculty of Dentistry, Department of Orthodontics, Antalya, Turkiye.
authors.forename: Hüseyin
authors.initials: H
authors.lastname: Alkış