Comparative spectrophotometric study of the color stability of three dental porcelains after repeated fi rings

Authors

  • Marcelo Weber Graduate Program in Oral Diagnosis, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, SP
  • Marina Gazzano Baladi Graduate Program in Oral Diagnosis, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, SP
  • Emiko Saito Arita Discipline of Oral Radiology, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, SP
  • Denise Sabbagh Haddad Graduate Program in Oral Diagnosis, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, SP

DOI:

https://doi.org/10.11606/issn.2357-8041.clrd.2014.56875

Keywords:

Tooth, Artifi cial, Dental Porcelain, Dental Prosthesis, Spectrophotometry, Color.

Abstract

The purpose of this investigation was to quantify the color differences in CIE ΔE units produced by multiple fi rings of three all-ceramic systems used in the fabrication of prosthodontic teeth. Thirty samples of the following brands were fabricated: AllCeram, Noritake Cerabien CZR and Vita VM7. A spectrophotometer was used for refl ectance measurement of color after 1 fi ring, 3 fi rings, 5 fi rings and 10 fi rings. The results were converted into CIELAB units. Color differences (ΔE) were calculated in the CIE color space. The color differences resulting from multiple fi rings proved to be dependent on the number of fi rings and on the porcelain brand tested.

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Author Biography

  • Marcelo Weber, Graduate Program in Oral Diagnosis, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, SP
    Departamento de Estomatologia

References

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Published

2014-09-08

Issue

Vol. 20 No. 3 (2014)

Section

Original Research

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