The Journal of Contemporary Dental Practice

Register      Login



Volume / Issue

Online First

Related articles

VOLUME 18 , ISSUE 8 ( August, 2017 ) > List of Articles


Impact of Polishing Systems on the Surface Roughness and Microhardness of Nanocomposites

Yasser Alfawaz

Citation Information : Alfawaz Y. Impact of Polishing Systems on the Surface Roughness and Microhardness of Nanocomposites. J Contemp Dent Pract 2017; 18 (8):647-651.

DOI: 10.5005/jp-journals-10024-2100

Published Online: 01-08-2017

Copyright Statement:  Copyright © 2017; Jaypee Brothers Medical Publishers (P) Ltd.



The aim of this article is to evaluate the influence of finishing and polishing techniques on the surface roughness and microhardness of two composite resins with two different types of polishing systems.

Materials and methods

A total of 30 disk-shaped specimens of nanocomposite Filtek™ Z350 and Ceram-X® were prepared. They were divided into three groups. The control group (n = 10) received no finishing and polishing. The remaining specimens were divided into two groups, and they received polishing and finishing either with PoGo or Sof-Lex system. After the polishing procedures, average surface roughness (Ra) was assessed with a surface profilometer. The microhardness was determined using a Vickers hardness test. The data were tabulated and analyzed.


The smoothest surfaces were noticed with the control group (Mylar strips) in both composite materials tested. The PoGo one-step polishing system showed significantly better surface roughness compared with the Sof-Lex polishing system. The microhardness did not show any significant variations after finishing and polishing.


It can be concluded that the use of PoGo® onestep polishing system resulted in smoother surface with both composite materials studied compared with the Sof-Lex system. The finishing and polishing system had little influence on the surface microhardness.

Clinical significance

The finishing procedure and polishing system can affect the physical properties and performance of resin composites.

How to cite this article

Alfawaz Y. Impact of Polishing Systems on the Surface Roughness and Microhardness of Nanocomposites. J Contemp Dent Pract 2017;18(8):647-651.

PDF Share
  1. The effect of surface finishing and storage solutions on the color stability of resin-based composites. J Am Dent Assoc 2004 May;135(5):587-594.
  2. Effect of surface roughness on stain resistance of dental resin composites. J Esthet Restor Dent 2005 Mar;17(2):102-108.
  3. Finishing and polishing of direct posterior resin restorations. Pract Proced Aesthet Dent 2004 Apr;16(3):211-217.
  4. Effects of aging on repair of resin-modified glass-ionomer cements. J Oral Rehabil 2000 May;27(5):422-427.
  5. Surface roughness of various packable composites. Oper Dent 2002 May-Jun;27(3):243-247.
  6. Marginal leakage and microhardness evaluation of low-shrinkage resin-based restorative materials. Gen Dent 2013 Jan-Feb;61(1):46-50.
  7. An application of nanotechnology in advanced dental materials. J Am Dent Assoc 2003 Oct;134(10):1382-1390.
  8. Characterization of nanofilled compared to universal and microfilled composites. Dent Mater 2007 Jan;23(1):51-59.
  9. Effect of one-step polishing systems on surface roughness of different flowable restorative materials. Dent Mater J 2008 Nov;27(6):755-764.
  10. Influence of polishing duration on surface roughness of resin composites. J Oral Sci 2005 Mar;47(1):21-25.
  11. Surface roughness of novel resin composites polished with one-step systems. Oper Dent 2007 Mar-Apr;32(2):185-192.
  12. Surface texture of four nanofilled and one hybrid composite after finishing. Oper Dent 2007 Jan-Feb;32(1):45-52.
  13. Effect of different polishing systems on the surface roughness of microhybrid composites. J Appl Oral Sci 2009 Jan-Feb;17(1):21-26.
  14. Surface roughness and morphology of three nanocomposites after two different polishing treatments by a multitechnique approach. Dent Mater 2010 May;26(5):416-425.
  15. The effect of one-step and multi-step polishing systems on surface texture of two different resin composites. J Conserv Dent 2010 Apr;13(1):34-38.
  16. Three-dimensional optical profilometry analysis of surface states obtained after finishing sequences for three composite resins. Oper Dent 2000 Jul-Aug;25(4):311-315.
  17. The in vivo perception of roughness of restorations. Br Dent J 2004 Jan;196(1):42-45.
  18. The effect of finishing and polishing procedures on the surface roughness of composite resin materials. J Contemp Dent Pract 2007 Jan;8(1):27-35.
  19. Effect of different polishing systems on the surface roughness of nano-hybrid composites. J Conserv Dent 2016 Jan;19(1):37-40.
  20. The effect of one-step polishing system on the surface roughness of three esthetic resin composite materials. Oper Dent 2004 Mar-Apr;29(2):203-211.
  21. Finishing/polishing of composite and compomer restoratives: effectiveness of one-step systems. Oper Dent 2004 May-Jun;29(3):275-279.
  22. Surface deterioration of dental materials after simulated toothbrushing in relation to brushing time and load. Dent Mater 2010 Apr;26(4):306-319.
  23. Evaluation of surface roughness of ceramic and resin composite material used for conservative indirect restorations, after repolishing by intraoral means. J Prosthodont 2015 Oct;26(4):296-301.
  24. Direct resin composites for 2002 and beyond. Gen Dent 2002 Jan-Feb;50(1):30-33.
  25. Review: finishing and polishing procedures of (resin-modified) glass ionomers and compomers in paediatric dentistry. Eur Arch Paediatr Dent 2007 Mar;8(1):22-28.
  26. Surface roughness of indirect composites using different polishing systems. Braz Dent Sci 2013Oct-Dec;16(4):77-83.
  27. Surface geometry of various nanofiller composites using different polishing systems: a comparative study. J Conserv Dent 2013 Nov-Dec;16(6):559-563.
  28. Surface geometry of three packable and one hybrid composite after polishing. Oper Dent 2003 Nov-Dec;28(6):816-824.
  29. Effect of different finishing and polishing techniques on the surface roughness of microfilled, hybrid and packable composite resins. Braz Dent J 2005 Aug;16(1):39-44.
  30. The effect of polishing technique on 3-D surface roughness and gloss of dental restorative resin composites. Oper Dent 2013 Jan-Feb;38(1):E1-E12.
  31. The effect of time of trimming on the surface finish of anterior composite resins. J Oral Rehabil 1993 Jan;20(1):45-52.
  32. The influence of one-step polishing systems on the surface roughness and microhardness of nanocomposites. Oper Dent 2008 Jan-Feb;33(1):44-50.
  33. The effect of polishing systems on microleakage of tooth-coloured restoratives. Part 2: composite and polyacid-modified composite resins. J Oral Rehabil 2000 Mar;27(3):205-210.
  34. New finishing instruments for composite resins. J Am Dent Assoc 1983 Oct;107(4):575-580.
  35. The effect of one-step and multi-step polishing systems on the surface roughness and microhardness of novel resin composites. Eur J Dent 2012 Apr;6(2):198-205.
  36. The relationship between composition and properties of posterior resin composites. J Dent Res 1990 Mar;69(3):852-856.
PDF Share
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.