BIOLOGY
Lecture30+Colors+and+shades.pdf

Lecture30+Colors+and+shades.pdf - New York University...

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The Essence of Color and Shade Selection Dr Michael B. Ferguson D.M.D.,C.A.G.S. Associate Clinical Professor Department of Prosthodontics New York University College of Dentistry
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Colors and Dentistry Develop your senses - especially learn how to see Leonardo DaVinci
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The Topics of Discussion: The Dimension of Color The Absorbance of Color Color Theories ( Systems ) Transparency, Translucency & Opacity Colors in Dentistry Shade Selection
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The Dimension of Color What is color?
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The Dimension of Color You see it You feel it It s time to know what it is
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The Dimension of Color Definition - Color is the visible aspect of an object, other than form or size, that depends on the hue , chroma , and value (brightness) of light that it reflects or emits
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The Dimension of Color Hue Value Chroma - the one of the three psychological dimensions of color perception that permits them to be classified as red, yellow, green, blue, or an intermediate between any contiguous pair of these colors and that is correlated with the wavelength or the combination of wavelengths comprising the stimulus Yellow Red Blue Merriam-Webster Medical Dictionary, 2002
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The Dimension of Color Hue Value Chroma - Reflects the dominant color of the tooth -Color tone - May not be identical for the dentin and of the enamel
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The Dimension of Color Hue Value Chroma - Refers to the degree of grayness or how bright or dark the object is - Relative lightness/darkness of a color - Also called brightness
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The Dimension of Color Hue Value Chroma - WHITE has the highest value High 10 Low 0
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The Dimension of Color Hue Value Chroma - It is the most influential characteristic of shade matching
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The Dimension of Color Hue Value Chroma - Refers to the saturation or intensity of the hue The American Heritage Dictionary of the English Language,, 2000
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The Dimension of Color Hue Value Chroma - Saturation/purity of color - Refers to the intensity of a hue, mainly of dentin
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The observation of light and color Visible light: 400-700 nm - HUE - Relates to the dominant wavelength - VALUE - Relates to the excitation purity - CHROMA - Relates to the actual amount of light the eyes see
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The observation of light and color The wheel of colors - An organized scheme of colors
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The observation of light and color Primary colors One of the three colors - red , yellow , and blue - that cannot be created by mixing other colors
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The observation of light and color o Complementary colors o Pairs of opposite colors on the color wheel
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The observation of light and color Complementary colors Pairs of opposite colors on the color wheel The complementary color of a primary color is the color you get by mixing
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