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The effect of the substructure on the colour of samples/restorations veneered with ceramic

The effect of the substructure on the colour of samples/restorations veneered with ceramic: A literature review

Research output: Contribution to journalScientific review

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Authors

  • Brian Stevenson
  • Richard Ibbetson

Research units

Info

Original languageEnglish
Pages361-368
Number of pages8
JournalJournal of Dentistry
Journal publication dateMay 2010
Volume38
Issue5
DOIs
StatePublished

Abstract

Objectives: This literature review assessed how changing the metal substructure or ceramic substructure affected the colour of samples or restorations after they have been overlaid by veneering ceramic.

Sources and study selection: Studies indexed in journals in MEDLINE were retrieved by searching with the terms "metal, ceramic, substructure, coping, colour and shade." The articles were screened for further relevant investigations. The colour co-ordinates rail and information relating to the substructure and veneering ceramic were recorded or calculated from the relevant articles.

Data: No clinical studies were identified. It was found that gold-backed samples were lighter and had different a* and b* values from those backed with base metal and silver-palladium. Colour differences were also found between different all-ceramic copings after the application of the veneering ceramic. However, no studies used the same protocol for all-ceramic and metal-ceramic specimens making comparisons impossible. Some of the colour differences observed would have been perceptible in a clinical setting.

Conclusions: Altering the substructure of an extra-coronal restoration changed its colour. This potentially may lead to additional laboratory and clinical time to produce an aesthetic restoration. (C) 2010 Elsevier Ltd. All rights reserved.

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