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Original Article
Surface roughness of universal composites after polishing procedures
Jae-Yong Lee, Dong-Hoon Shin
J Korean Acad Conserv Dent 2003;28(5):369-377.   Published online September 30, 2003
DOI: https://doi.org/10.5395/JKACD.2003.28.5.369
AbstractAbstract PDFPubReaderePub

The aim of this study was to evaluate the effect of two polishing methods and chemical conditioning on the surface of hybrid composites.

Ninety cylindrical specimens (diameter: 8 mm, depth: 2 mm) were made with three hybrid composites - Filtek Z250, Tetric Ceram, DenFil. Specimens for each composite were randomly divided into three treatment subgroups - ① Mylar strip (no treatment), ② Sof-Lex XT system, ③ PoGo system. Average surface roughness(Ra) was taken using a surface profilometer at the time of setting and after immersion into 0.02N lactic acid for 1 week and 1 month. Representative specimens were examined by scanning electron microscopy. The data were analyzed using ANOVA and Scheffe's tests at 0.05% significance level.

The results were as follows:

Mylar strip resulted in smoother surface than PoGo and Sof-Lex system(p<0.001). Sof-Lex system gave the worst results.

Tetric Ceram was smoother than DenFil and Z250 when cured under only mylar strip. However, it was significantly rougher than other materials when polished with PoGo system.

All materials showed rough surface after storage in 0.02N lactic acid, except groups polished with a PoGo system.

The PoGo system gave a superior polish than Sof-Lex system for the three composites. However, the correlation to clinical practice may be limited, since there are several processes, such as abrasive, fatigue, and corrosive mechanisms. Thus, further studies are needed for polishing technique under in vivo conditions.

Citations

Citations to this article as recorded by  
  • The evaluation of surface roughness and polishing time between polishing systems
    Ye-Mi Kim, Su-Jung Shin, Min-Ju Song, Jeong-Won Park
    Journal of Korean Academy of Conservative Dentistry.2011; 36(2): 119.     CrossRef
  • Surface roughness of experimental composite resins using confocal laser scanning microscope
    JH Bae, MA Lee, BH Cho
    Journal of Korean Academy of Conservative Dentistry.2008; 33(1): 1.     CrossRef
  • Evaluation on the abrasion resistance of a surface sealant
    Soo-Mee Kim, Sae-Hee Han, Young-Gon Cho
    Journal of Korean Academy of Conservative Dentistry.2007; 32(3): 180.     CrossRef
  • Surface roughness of composite resin according to finishing methods
    Jeong-Bum Min, Kong-Chul Cho, Young-Gon Cho
    Journal of Korean Academy of Conservative Dentistry.2007; 32(2): 138.     CrossRef
  • Influence of the Surface roughness on translucency and surface color of the dental composite resins
    Kyu-Jeong Cho, Su-Jung Park, Hyun-Gu Cho, Dong-Jun Kim, Yun-Chan Hwang, Won-Mann Oh, In-Nam Hwang
    Journal of Korean Academy of Conservative Dentistry.2006; 31(4): 312.     CrossRef
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