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Clinical Oral Investigations

Published in:

01-04-2018 | Original Article

Color adjustment potential of resin composites

Authors: Branka Trifkovic, John M. Powers, Rade D. Paravina

Published in: Clinical Oral Investigations | Issue 3/2018

Abstract

Objectives

The purpose of this study was to evaluate color adjustment potential (CAP) of resin composites.

Materials and methods

Two shades of each of eight commercial resin composites and one control shade were evaluated. Visual (color competent observers, controlled conditions) and instrumental color evaluations (spectroradiometer, spectrophotometer) were performed. The data were analyzed by analysis of variance, Fisher’s PLSD intervals for comparison of means, and Spearman’s rank order correlation.

Results

Instrumental color adjustment potential (CAP-I) ranged from − 0.51 to 0.74, and corresponding Fisher’s PLSD intervals were 0.1 and 0.05, respectively (p < 0.0001, power 1.0). Visual color adjustment potential (CAP-V) ranged from 0.10 to 0.78, and corresponding Fisher’s PLSD intervals were 0.2 and 0.1, respectively (p < 0.0001, power 1.0). The greatest overall color shifting between test shades in isolation and the same shades surrounded by control shade were recorded for HRi ENA enamel, followed by Clearfil Majesty ES2. The highest visual CAP (blending) was recorded for Herculite Ultra, HRi ENA enamel, and Clearfil Majesty ES2.

Conclusion

Within the limitation of the study, it was found that color adjustment potential (CAP) was composite and shade-dependent. Positive CAP was recorded both instrumentally and visually for majority of composites and shades. Overall, the measured color difference reduction associated with positive CAP was 31%, while the average visual CAP was 43%.

Clinical relevance

Resin composites with pronounced color adjustment potential interact with surrounding dental restorations. Introduced CAP-V and CAP-I were indirect measurements of blending (optical illusion).

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Title: Color adjustment potential of resin composites
Authors: Branka Trifkovic
John M. Powers
Rade D. Paravina
Publication date: 01-04-2018
Publisher: Springer Berlin Heidelberg
Published in: Clinical Oral Investigations / Issue 3/2018
Print ISSN: 1432-6981
Electronic ISSN: 1436-3771
DOI: https://doi.org/10.1007/s00784-017-2260-6

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Color adjustment potential of resin composites

Abstract

Objectives

Materials and methods

Results

Conclusion

Clinical relevance

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Abstract

Objectives

Materials and methods

Results

Conclusion

Clinical relevance

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