title: Marginal adaptation and microleakeage of directly and indirectly made fiber reinforced composite inlays.
abstract: OBJECTIVE
  This study evaluated in vitro microleakage of inlays made by direct or indirect techique with or without fiber reinforced composite (FRC) substructure.
  
  
  METHODS
  Standardized mesio-occlusal cavities were prepared and restored using direct-technique with composite resin only or FRC-composite resin, and indirect technique with laboratory composite only or FRC-laboratory composite resin. After thermocycling, teeth were immersed in basic fuchsin dye, sectioned and examined under a stereo-microscope (x40).
  
  
  RESULTS
  No differences of cement thickness and dye penetration were found in gingival area (p>0.05), whereas microleakage revealed statistical differences between groups (p=0.02) in occlusal area, where FRC-groups had lower microleakage than composite restorations. Thickness of cement layer did not show significant difference between groups with indirect technique (p>0.05).
  
  
  CONCLUSIONS
  The present study suggests that insertion of FRC substructure to the inlay cavity by direct composite filling technique does not increase the marginal leakage compared to that of cementing indirectly made restotorations by composite resin luting cement.
  
  
  CONCLUSIONS
  On the basis of the results of this in vitro study, the use of direct FRC technique might be an effective way to decrease the marginal leakage.
authors.affiliation: Ege University, School of Dentistry, Department of Prosthodontics, Izmir, Turkey.
authors.forename: Kumbuloglu
authors.initials: K
authors.lastname: Ovul
authors.forename: Tezvergil-Mutluay
authors.initials: TM
authors.lastname: Arzu
authors.forename: Saracoglu
authors.initials: S
authors.lastname: Ahmet
authors.forename: Lassila
authors.initials: L
authors.lastname: Lippo Vj
authors.forename: Vallittu
authors.initials: V
authors.lastname: Pekka K