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Related Experiment Videos

Composite surfaces after finishing and polishing techniques.

C P Turssi1, J R Saad, S L Duarte

  • 1Department of Restorative Dentistry, Araraquara School of Dentistry, UNESP, São Paulo, Brazil. cturssi@yahoo.com

American Journal of Dentistry
|January 5, 2002
PubMed
Summary

The smoothest resin-based composite surfaces were achieved using Sof-Lex disks followed by Prisma Gloss polishing. Enhance points alone resulted in the roughest surfaces, highlighting technique importance for dental restorations.

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Area of Science:

  • Dental Materials Science
  • Biomaterials Engineering
  • Surface Characterization

Background:

  • Surface roughness of resin-based composites (RBCs) significantly impacts their clinical performance and longevity.
  • Effective finishing and polishing are crucial for achieving smooth RBC surfaces, reducing plaque accumulation and wear.
  • Understanding the comparative efficacy of different finishing and polishing protocols is essential for restorative dentistry.

Purpose of the Study:

  • To investigate and compare the effects of four distinct finishing and polishing techniques on the surface roughness of resin-based composites (RBCs).
  • To determine which technique yields the smoothest surface finish for RBCs.

Main Methods:

  • Forty specimens of each RBC material were prepared and their baseline surface roughness (Ra) measured using a profilometer.

Related Experiment Videos

  • Specimens underwent one of four finishing and polishing protocols: Sof-Lex disks, Sof-Lex disks with Prisma Gloss, Enhance points, or Enhance points with Prisma Gloss.
  • Post-polishing surface roughness was measured, and the difference from baseline values was analyzed statistically.

    • Main Results:

    • Statistical analysis (ANOVA) revealed significant differences in surface roughness among the tested finishing and polishing techniques (P = 0.0157).
    • The combination of Sof-Lex disks followed by Prisma Gloss polishing paste produced the smoothest surface.
    • The Enhance points finishing system alone resulted in the roughest surface compared to other techniques.

    Conclusions:

    • The choice of finishing and polishing technique significantly influences the final surface roughness of resin-based composites.
    • A two-step approach using Sof-Lex disks followed by Prisma Gloss is recommended for achieving optimal surface smoothness in RBC restorations.
    • The Enhance points system, when used alone, is less effective in reducing surface roughness.