HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text Full Text (PDF) Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Barath, V.S. Articles by Niedermeier, W. Search for Related Content PubMed PubMed Citation Articles by Barath, V.S. Articles by Niedermeier, W.

Spectrophotometric Analysis of All-ceramic Materials and Their Interaction with Luting Agents and Different Backgrounds

¹ Department of Prosthetic Dentistry, Dental School (Zentrum für Zahn, Mund und Kieferheilkunde), University of Cologne, Kerpener Strasse 32, 50931 Cologne, Germany;
² Department of Preclinical Dentistry, Dental School, University of Cologne;
³ Colour & Imaging Institute, University of Derby;

Correspondence: ^* corresponding author, vs.barath{at}uni-koeln.de

In this study, two All-Ceramic (AC) materials—Empress 2 (EMP) (Ivoclar Vivadent AG, Schaan, Liechtenstein) and In-Ceram ALUMINA (ICA) (Vita Zahnfabrik, Bad Säckingen, Germany)—were analyzed, along with the effects of 3 luting agents—viz. Zinc Phosphate cement (ZNPO, PhospaCEM PL, Ivoclar Vivadent AG, Schaan, Liechtenstein), Glass Ionomer Cement (GIC, Ketac-Cem Radiopaque, ESPE Dental AG, Seefeld, Germany), and Compolute (COMP, ESPE Dental AG, Seefeld, Germany)—on the final color, using the CIELab system. Color differences (DeltaL, Deltaa, Deltab, and DeltaE) were calculated for samples with luting agents and for samples without luting agents with standard white and black backgrounds, with the use of a spectrophotometer, Luci 100 (Dr. Lange, Berlin, Germany). One-way ANOVA for DeltaL, Deltaa, Deltab, and DeltaE within both the AC systems, with and without luting agents, showed significant contributions of the background (p < 0.05). EMP was seen to be more translucent than ICA. Darker ceramics showed less color variation. Luting agents altered the final color of the restoration. ZNPO was least translucent, followed by GIC and COMP. Marginal increases in thicknesses of ICA samples (0.4 mm) do not show a statistically significant color difference. No method exists to predict the outcome of an AC restoration based on consideration of the luting agent and the background color.

KEY WORDS: Ceramics • dental cements • luting agents • color • colorimetry

This article has been cited by other articles:

				F. Spear and J. Holloway Which All-Ceramic System Is Optimal for Anterior Esthetics? J Am Dent Assoc, September 1, 2008; 139(suppl_4): 19S - 24S. [Abstract] [Full Text] [PDF]