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Year : 2005  |  Volume : 5  |  Issue : 2  |  Page : 72-78

A spectrophotometric evaluation of color changes of various tooth colored veneering materials after exposure to commonly consumed beverages

1 Departments of Prosthodontics, Centre for Dental Education and Research, AIIMS, New Delhi, India
2 Departments of Endodontics, Centre for Dental Education and Research, AIIMS, New Delhi, India

Correspondence Address:
R Gupta
Department of Prosthodontics, Yenepoya Dental College and Hospital, Mangalore
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0972-4052.16873

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Purpose of study : Proper color match of a dental restoration with the adjacent teeth is important not only at the initial stage of giving the restoration but also over a longer period of time. Out of different materials Porcelain has established itself as being color stable and durable but composites are known to be susceptible to discoloration because of internal mechanisms, external contamination and staining. The newer universal composite systems are optimized in terms of composition to minimize internal discoloration but still not much attention is given to resistance to external staining. Procedure : Visual shade matching and color determination being a psychophysical phenomenon suffer from subjective variations in interpretation, therefore the present study was undertaken to evaluate and compare the color stability of a porcelain (Vitadur alpha) and two universal composites (Filtek Z 250 and Tetric Ceram) after exposure to commonly consumed beverages i.e. tea, coffee, coca-cola and distilled water (as control) by using a reflectance spectrophotometer and CIELAB system. Conclusion : T0 he color match of esthetic restorations in the oral cavity is affected by dietary habits

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