Effect Of Different Polishing Systems On The Surface Roughness Of Nano-hybrid Composites: A Profilometric Study
Article
| IMSEAR
| ID: sea-184709
ABSTRACT
Aim:
The purpose of this study was to compare the influence of different polishing systems on the surface roughness of nano-hybrid composite resins. Materials andMethods:
Fourty samples of acrylic blocks were prepared with cold cure acrylic resin in plastic rings of 1 inch diameter. In each acrylic block, a well of 6mm diameter and 2mm depth was prepared by drilling hole in it using a slow speed micromotor. Tetric N-Ceram™ nano composite is placed in the wells prepared using a plastic instrument and covered with a mylar strip. The samples were then cured for 40s through the mylar strips using LED curing light. 60 samples were divided into 4 groups with 15 samples in each group based on polishing regimen used. Group A - Mylar strip, Group B- PoGo diamond polishers, Group C- prophy brushes and Group D- Super- Snap Rainbow kit. The polished resin composite discs were washed, allowed to dry and kept again in 100% humidity for 24 h before measuring the average surface roughness values (Ra). The surface roughness test was performed using a profilometer and surfaces are seen under scanning electron microscope[SEM]. Statisticalanalysis:
The data were analysed by using one-way ANOVA using SPSS 17.0 software.Results:
For all the materials, the smoothest surface was obtained with mylar strip and the roughest with prophy brushes(P< 0.05).Conclusion:
Mylar strip produced smoothest surface than other polishing systems.
Texte intégral:
Disponible
Indice:
IMSEAR (Asie du Sud-Est)
Année:
2017
Type:
Article
Documents relatifs à ce sujet
MEDLINE
...
LILACS
LIS