title: In vitro evaluation of microleakage of class V cavities restored with new flowable compomers on the primary teeth.
abstract: BACKGROUND
  The aim of the study was to evaluate the in vitro microleakage of new flowable compomers in the class V cavities of primary teeth.
  
  
  METHODS
  Thirty freshly extracted, non-carious, primary molars without visible defects were used in this study. Class V cavities (n = 60), with the occlusal and cervical margins located in the enamel, were prepared on the buccal and lingual surfaces. The samples were randomly divided into 3 groups of 20 each. Group 1: restored with Twinky Star Flow (Voco, Cuxhaven, Germany), Group 2: restored with Dyract Flow (Dentsply, Konstanz, Germany) and Group 3: restored with R&amp;D Series Nova Compomer Flow (Imicryl, Konya, Turkey) according to the manufacturer's instructions. After a thermocycling regimen of 1000 cycles between 5°C and 55°C, the samples were isolated, immersed in 0.5% basic fuchsine solution for 24 h at 37°C and sectioned longitudinally in a buccolingual direction. The sections were evaluated for values of microleakage with a stereomicroscope.
  
  
  RESULTS
  All materials showed microleakage but no statistically significant difference was observed among the groups (p&gt;0.05). The highest microleakage score was observed in group II (1.65 ± 0.49) and group I (1.75 ± 0.44) at occlusal and gingival margins, respectively.
  
  
  CONCLUSIONS
  Flowable compomers showed insignificantly least amount of microleakage in class V cavities prepared on primary molars.
authors.affiliation: Department of Pediatric Dentistry, Faculty of Dentistry, Akdeniz University, Antalya - Turkey.
authors.forename: Ozge Erken
authors.initials: OE
authors.lastname: Gungor
authors.affiliation: Department of Pediatric Dentistry, Faculty of Dentistry, Pamukkale University, Denizli - Turkey.
authors.forename: Yildirim
authors.initials: Y
authors.lastname: Erdogan
authors.affiliation: Department of Orthodontics, Faculty of Dentistry, Akdeniz University, Antalya - Turkey.
authors.forename: Ahmet Yalçın
authors.initials: AY
authors.lastname: Güngör
authors.affiliation: Department of Orthodontics, Faculty of Dentistry, Suleyman Demirel University, Isparta - Turkey.
authors.forename: Huseyin
authors.initials: H
authors.lastname: Alkis
mesh_terms: D020770:Compomers; D003188:Composite Resins; D003737:Dental Cavity Preparation; D003763:Dental Leakage / Q000175:diagnosis*; D003793:Dental Restoration, Permanent; D006801:Humans; D008963:Molar / Q000601:surgery*; D012394:Rosaniline Dyes; D014094:Tooth, Deciduous / Q000601:surgery*
chemical_list: D020770:Compomers; D003188:Composite Resins; D012394:Rosaniline Dyes; C025485:basic fuchsin