IADR Abstract Archives
Effect of Polishing Procedure on Surface Roughness of Different Light Curing Composite Resin Restorative Materials
Objectives: The aim of this in vitro study was to evaluate the surface roughness of 10 nanohybrid ( Charisma Opal / Heraeus Kulzer/ Germany, Charisma Diamond /Heraus Kulzer / Germany, Filtek Ultimate Dentin, Enamel, Body / 3M ESPE / USA, Quadrant / Cavex / Holland, Majesty Esthetic / Kuraray / Japan, Estelite ∑ Quick / Tokuyama / Japan, Restorative Z250 / 3M ESPE / USA, Grandio / Voco / Germany ), 1 microhybrid ( Charisma Classic / Heraus Kulzer / Germany ) and 1 nanohybrid flowable ( Charisma Opal Flow / Heraus Kulzer / Germany ) restorative material before and after polishing procedure.
Methods: 60 disc- shaped specimens with 5mm diameter and 2 mm depth were prepared. All specimens were cured with a 1000 mW/cm2 LED device ( Bluephase, Ivoclar Vivadent, Liechtenstein) under mylar strip. After light curing, surface roughness values of all specimens were evaluated with a profilometer ( Surfest SJ-301 Mitutoyo, Japan ) three times from each group. After first measurement polishing procedures were performed to all specimens with same method. All measurements were performed again three times from each group. Statistical analyses were performed using SPSS for Windows.
Results: The results of the study indicated that there was an increase in surface roughness values after polishing procedures. The highest surface roughness values were obtained from nanohybrid composite resins Grandio and Filtek Ultimate Dentin before and after polishing.
Conclusions: Within the limits of this study, we can say that all composite resin groups showed acceptable surface roughness values before and after polishing.
Methods: 60 disc- shaped specimens with 5mm diameter and 2 mm depth were prepared. All specimens were cured with a 1000 mW/cm2 LED device ( Bluephase, Ivoclar Vivadent, Liechtenstein) under mylar strip. After light curing, surface roughness values of all specimens were evaluated with a profilometer ( Surfest SJ-301 Mitutoyo, Japan ) three times from each group. After first measurement polishing procedures were performed to all specimens with same method. All measurements were performed again three times from each group. Statistical analyses were performed using SPSS for Windows.
Results: The results of the study indicated that there was an increase in surface roughness values after polishing procedures. The highest surface roughness values were obtained from nanohybrid composite resins Grandio and Filtek Ultimate Dentin before and after polishing.
Conclusions: Within the limits of this study, we can say that all composite resin groups showed acceptable surface roughness values before and after polishing.