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2008, vol. 12, br. 3, str. 153-157
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Surface roughness of posterior condensable composites
(naslov ne postoji na srpskom)
Department of Restorative Dentistry, School of Dentistry, Ege University, Bornova, Izmir, Turkey
e-adresa: draysegulkaya@yahoo.com
Sažetak
(ne postoji na srpskom)
Objective: The purpose of this study was to evaluate the surface roughness of posterior condensable composites. Methods: Posterior condensable composites, Alert (Jeneric/Pentron) and Surefil (Dentsply), and hybrid composite Z100 (3M), were used in this study. The study material was placed into, and hardened in cavities. After the finishing and polishing procedures were completed, specimens were randomly separated into 3 groups. While the surface roughness values of the first group of specimens were determined with a profilometer, the surfaces of the second group were evaluated using SEM; Vickers micro-hardness measures were applied to the third group of specimens. Data were analyzed using Kruskal-Wallis and Mann-Whitney U tests. Results: All 3 groups were found to be different mutually (p<0.05). The surface roughness of condensable posterior composites was greater than that of hybrid composite resins (p<0.05). A direct correlation was found between the micro-hardness value and the surface roughness value, indicating that a composite with higher hardness value yielded a higher roughness value (r=0.738). SEM images support the statistical evaluation.
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