America's Dental Bookstore

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America's Dental Bookstore

Dental Books
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Consumer Information About Cosmetic DentistryDental Articles

Anesthesia & Sedation ArticlesClinical Dentistry ArticlesCosmetic Dentistry ArticlesDental Assisting ArticlesDental Hygiene ArticlesDental Humor ArticlesDental Materials ArticlesEndodontics ArticlesFixed Prosthodontics ArticlesImplant ArticlesLaboratory Technology ArticlesOral Surgery ArticlesOrthodontics ArticlesPedodontics ArticlesPeriodontics and Prevention ArticlesPractice Finance & Regulations ArticlesPractice ManagementPractice Management - MarketingRadiologyTest PreparationTMJ and Occlusion Articles

Aesthetic Evaluation Form • Bonding Procedure for All-Porcelain Crowns and Onlays
 • Color metamerism in teeth • Porcelain Veneer Bonding Procedure • Shade-Matching Technology • Should etching be performed as part of a vital bleaching technique? • Treatment Coordinator

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Color Metamerism in Teeth

Color metamerism in teeth is a phenomenon that needs to be taken into account in cosmetic dentistry, when matching shades.

Teeth are made of hydroxyapatite. Composite bonding materials are made of organic resins impregnated with inorganic fillers. Porcelain and other ceramics are composed of different materials. Each of these materials has its color properties. It is not uncommon at all for a tooth restored to a shade match under one lighting situation to not match under different lighting. (See

If a crown or bonding material is created to match a tooth under warm fluorescent lighting, or incandescent lighting, the color metamerism properties of the restorative material can easily mean that the color will not match under a different light source, such as outdoor lighting. For best results, shade matching should be done either in the natural light from a large window with a northern exposure, or under color-correct fluorescent lighting. There are several companies that sell full-spectrum lighting. This lighting will be at a color temperature of 5500 Kelvin. The Durotest Vita-Lite is the original bulb manufactured to these specifications, but there are competing brands now that do the same thing. Matching colors under a full-spectrum light source should eliminate complications from color metamerism.

There is an excellent book with accompanying CD-ROM that trains dentists to deal with color metamerism and other complex color issues: Esthetic Color Training in Dentistry.

More articles
America's Dental Bookstore maintains this collection of articles on dentistry submitted by visitors to our site.
These could be clinical tips, research articles, opinion articles, dental jokes, or whatever.