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KMID : 08793198719870000431
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Annuals of Clinical Study - Seoul National Hospital
1987 Volume.1987 No. 0 p.431 ~ p.442
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A Study on The Staining Property of Chemically Cured Dental Composite Resins
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Abstract
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The purpose of this study was to evaluate the staining property of dental composite resins in various solutions.
Five kinds of chemically-curred dental composite resins were used in this study. Specimens (diameter 20mm, thickness 1.3mm) were immersed in 2% coffee solution, cola, distilled water, orange juice, soy sauce solution and tea solution for 1, 2, 3 and 4 weeks. The value of Hunter´s color difference (AE) was measured by Spectrophotometer (MS-2000, Macbeth, U.S.A.) with integrating sphere.
From the experiment following results were obtained:
1. Composite resins were stained much after one week and thereafter the degree of staining was not much increased as in the first week.
2. Staining tendency of composite resins was higher in coffee,
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