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Quantitative and qualitative surface analysis of three resin composites after polishing - An in vitro study
Panna Mangat1, Faizan Masarat1, Gajendra Singh Rathore1
1Department of Conservative Dentistry and Endodontics, Kalka Dental College, Meerut, Uttar Pradesh, India.
Aim:
The study aims to measure the surface roughness (Ra) of three resin composites subsequent to polishing with diamond-impregnated polishing paste.
Materials And Methods:
Sixty specimens (10 mm × 2 mm) were prepared in metal molds using three nanocomposites: GC Sculpt, Filtek Z350 XT, and Tetric N Ceram. Specimens were then subjected to baseline roughening with #600 grit sandpaper and were polished with DirectDia paste according to the manufacturer's instructions. After polishing, the Ra of resin composites of all the specimens was measured using profilometer and the surfaces were seen under scanning electron microscope.
Results:
Tetric N Ceram specimens were significantly smoother and had the least Ra value compared to other groups.
Conclusion:
Among the three resin composites tested, Tetric N Ceram exhibited the least Ra value owing to the small size of inorganic filler particles.
