The Effects of Different Polishing Systems on Surface Roughness of Nano-Composite

Year 2010, Volume: 37 Issue: 1 - Volume: 37 Issue: 1, 1 - 6, 01.05.2010

Gürkan Gür Gülbike Demirel

Abstract

The aim of this study was to evaluate the effects of different polishing systems on surface roughness of nano-composites. For this purpose, two nano-composites Grandio, VOCO ve Filtek SupremeUltra Enamel, 3M/ESPE and three polishing systems were used. 40 samples were prepared for each of the composites N=80 . All the samples were prepared in a plexiglass molds againist a polyester strip. The samples were divided into 4 subgroups for different polishing systems n=10 . Except the control groups, all the other remaining groups were finished with cabid bur and following polishing systems were performed: SoftLex XT Group SL , PoGo Group PG , Astropol Group AS . Profilometer was used for assessing the surface roughness of composite samples. Parametric two-way analyses of variance were used for statistical evaluation of average roughness data of samples Ra and Tukey HSD tests were used for multiple comparison of averages p=0,05 Two of the resin composite groups were compared, the lowest Ra value was obtained at Filtek SupremeUltra Enamel group, the highest Ra value was obtained in Grandio group, and this difference was statistically significant p

Keywords

Surface roughnes, nanocomposite, finishing and polishing

Farklı cila sistemlerinin nano-dolduruculu kompozitlerin yüzey pürüzlülüğü üzerine etkisi

Abstract

Bu çalışmanın amacı farklı cila sistemleri kullanarak iki farklı doldurucu türüne sahip kompozit rezin materyalin yüzey pürüzlülük özelliklerini incelemektir. Bu amaçla iki farklı nanokompozit Grandio, VOCO ve Filtek SupremeUltra Enamel, 3M/ESPE ve üç farklı cila sistemi kullanılmıştır. Her bir kompozit materyalden 40’ar adet örnek hazırlanmıştır N=80 . Tüm örnekler pleksicam kalıplarda hazırlanmış ve polyester bant kullanılarak polimerize edilmiştir. Örnekler farklı cila işlemleri uygulanmak üzere 4 alt gruba ayrılmıştır n=10 . Kontrol grubu Grup K haricindeki diğer gruplara, önce karpit frez ile bitirme işlemi uygulanmış, sonrasında şu cila sistemleri uygulanmıştır: Soft-Lex XT Grup SL , PoGo Grup PG , Astropol Grup AS .Örnekler; yüzey pürüzlülüğündeki değişimlerin değerlendirilebilmesi için optik profilometre kullanılarak incelenmiştir. Örneklerin ortalama yüzey pürüzlülüğü Ra verilerinin istatistiksel olarak değerlendirilmesinde çift yönlü varyans analizi, ortalamaların çoklu karşılaştırılmasında ise Tukey HSD testi kullanılmıştır p=0,05 . İki kompozit rezin grubu değerlendirildiğinde en düşük Ra değeri Filtek Supreme XT Enamel grubununda izlenmektedir. Grandio grubunun Ra değeri daha yüksektir ve bu farklılık istatistiksel olarak anlamlıdır p

Keywords

Yüzey pürüzlülüğü, nanokompozit, bitirme ve cila

References

• Mitra SB, Wu D, Holmes B. An application of nanotechnology in advanced dental materials. J Am Dent Assoc 2003; 134: 1382-90.
• Reis AF, Giannini M, Lovadino J R, Dias C T S. The effect of sixpolishing systems on the surface resinbasedcomposites. Am J Dent 2002; 15: 193-7. of two packable
• Türkün LS, Turkun M. The effect of one- step polishing system on the surface roughness of three esthetic resin composite materials. Oper Dent 2004 ;29: 203-11.
• Baseren, M. Surface roughness of nanofill and nanohybrid composite resin and ormocer-based tooth-colored restorative materials after several finishing and polishing procedures. J Biomater Appl 2004; 19: 121 -4.
• Bollen CML, Lambrechts P, Quirynen M. Comparison of surface roughness of oral hard materials to the threshold surface roughness for bacterial plaque retention: a review of the literature. Dent Mater 1997; 13: 258-69.
• Inokoshi S, Burrow MF, Kataumi M, Yama- da T, Takatsu T. Opacity and color changes of tooth- colored restorative materials. Oper Dent 1996; 21: 73-80.
• Yap AU, Yap SH, Teo CK, Ng JJ. Finishing/ polishing of composite and compomer restoratives: effectiveness of one-step systems. Oper Dent 2004; 29: 275-9.
• Uctasli MB, Arisu HD, Omurlu H, Eliguzeloglu E, Ozcan S, Ergun, G. The effect of differentfinishing and polishing systems on the surface roughness of different composite restorative materials. J Contemp Dent Pract 2007; 8: 89-96.
• Pratten DH, Johnson GH. An evaluation of finishing instruments for an anterior and posterior composite. J Prosthet Dent 1988; 60: 154-8.
• Dennison JB, Fan PL, Powers JM. Surface roughness of microfilled composites. J Am Dent Assoc 1981; 102: 858-62.
• Wilson F, Heath JR, Watts DC. Finishing composites restorative materials. J Oral Rehabil 1990; 17: 79-87.
• Krejci I, Lutz F, Boretti R. Resin composite polishing: Filling the gap. Quint Int 1999; 30: 490-5.
• Ulusoy N, Bagis YH. Mikro dolduruculu kompozit dolgularda farklı bitirme yöntemlerinin değerlendirilmesi: Bitirme yöntemlerinin hibrit kompozitlere etkisi. Bölüm I. A Ü Dis Hek Fak Derg 1994; 21: 89,92.
• Jung M, Sehr K, Klimek J. Surface texture of four nanofilled and one hybrid composite after finishing. Oper Dent 2007; 32: 45-52.
• Bayne S, Heymann H, Swift E. Update on dental composites restorations. J Am Dent Assoc 1994; 25: 687–701.
• Ergücü Z, Türkün LS. Surface roughness of novel resin composites polished with one-step systems. Oper Dent 2007; 32: 185-92.
• Duke E.S. Has dentistry moved into the nanotechnology area? Compend. Contin. Educ. Dent 2003; 24: 380-2.
• Başeren M. Surface roughness of nanofill and nanohybrid composite resin and ormocer-based tooth-colored restorative materials after several finishing and polishing procedures. J Biomater Appl. 2004; 19: 121-34.
• Bouvier D, Drupez IP, Lissac M. Comparative evaluation ofpolishing systems on the surface of three aesthetic materials. J Oral Rehabil 1997 ;24: 888-94.
• Özgünaltay G, Yazici AR, Görücü J. Effect of finishing and polishing procedures on the surface roughness of new tooth-coloured restoratives. J Oral Rehabil. 2003; 30: 218-24.
• Yap AU, Tan CH, Chung SM. Wear behavior of new composite restoratives. Oper Dent 2004; 29: 269-74
• Lu H, Roeder L.B, Powers J. M.Effect of polishingsystems on the surface roughness of microhybrid composites. J Esthet Restor Dent 2003; 15: 297–303
• Uctasli MB, Arisu HD, Omurlu H, Eliguzeloglu E, Ozcan S, Ergun, G. The effect of different finishing and polishing systems on the surface roughness of different composite restorative materials. J Contemp Dent Pract 2007; 8: 89-96.
• Chung KH. Effects of finishing and polishing procedures on the surface texture of resin composites. Dent Mater 1994; 10: 325–30.
• Türkün LS, Türkün M. The effect of one- step polishing system on the surface roughness of three esthetic resin composite materials. Oper Dent 2004 Mar-Apr;29:203-11.
• Ergucu Z, Turkun LS. Surface Roughness of Novel Resin Composites Polished with One-step Systems. Oper Dent 2007; 32: 185-92.