Evaluation of dental shade guide variability using cross-polarized photography

Jon Gurrea, Marta Gurrea, August Bruguera, Camila Sobral Sampaio, Malvin Janal, Estevam Bonfante, Paulo Coelho, Ronaldo Hirata

Research output: Contribution to journalArticle

Abstract

This study evaluated color variability in the A hue between the VITA Classical (VITA Zahnfabrik) shade guide and four other VITA-coded ceramic shade guides using a Canon EOS 60D camera and software (Photoshop CC, Adobe). A total of 125 photographs were taken, 5 per shade tab for each of 5 shades (A1 to A4) from the following shade guides: Vita Classical (control), IPS e.max Ceram (Ivoclar Vivadent), IPS d.SIGN (Ivoclar Vivadent), Initial ZI (GC), and Creation CC (Creation Willi Geller). Photos were processed with Adobe Photoshop CC to allow standardized evaluation of hue, chroma, and value between shade tabs. None of the VITA-coded shade tabs fully matched the VITA Classical shade tab for hue, chroma, or value. The VITA-coded shade guides evaluated herein showed an overall unmatched shade in all tabs when compared with the control, suggesting that shade selection should be made using the guide produced by the manufacturer of the ceramic intended for the final restoration.

Original languageEnglish (US)
Pages (from-to)e76-e81
JournalThe International journal of periodontics & restorative dentistry
Volume36
Issue number5
DOIs
StatePublished - 2016

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Photography
Ceramics
Tooth
Software
Color
inzoma
Vivadent

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Gurrea, J., Gurrea, M., Bruguera, A., Sampaio, C. S., Janal, M., Bonfante, E., ... Hirata, R. (2016). Evaluation of dental shade guide variability using cross-polarized photography. The International journal of periodontics & restorative dentistry, 36(5), e76-e81. https://doi.org/10.11607/prd.2700

Evaluation of dental shade guide variability using cross-polarized photography. / Gurrea, Jon; Gurrea, Marta; Bruguera, August; Sampaio, Camila Sobral; Janal, Malvin; Bonfante, Estevam; Coelho, Paulo; Hirata, Ronaldo.

In: The International journal of periodontics & restorative dentistry, Vol. 36, No. 5, 2016, p. e76-e81.

Research output: Contribution to journalArticle

Gurrea, Jon ; Gurrea, Marta ; Bruguera, August ; Sampaio, Camila Sobral ; Janal, Malvin ; Bonfante, Estevam ; Coelho, Paulo ; Hirata, Ronaldo. / Evaluation of dental shade guide variability using cross-polarized photography. In: The International journal of periodontics & restorative dentistry. 2016 ; Vol. 36, No. 5. pp. e76-e81.
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