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Aesthetics > Color > Flashcards

Color Flashcards

1
Q

What is the Esthetic Triad?

A

Shape, Texture, Color

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2
Q

Pigment, Color Tone (red, blue, yellow)

A

Hue

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3
Q

Intensity or degree of saturation and purity of a color tone (hue)

A

Chroma

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4
Q

The degree of color brightness

A

Value

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5
Q

Is more value mean that it is lighter or darker?

A

lighter

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6
Q

The ability to absorb radiant energy and emit it in the form of a different wavelength

A

Fluorescence

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7
Q

The ability of a translucent material to appear blue in reflected light and red-orange in transmitted light

A

Opalescence

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8
Q

The degree to which light is transmitted rather than absorbed or reflected

A

Translucency

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9
Q

What do rods perceive?

A

the brightness of the color, the intensity of the light rays

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10
Q

What do cones perceive?

A

the hue (color)

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11
Q

Where is the color of teeth derived from?

A

dentin

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12
Q

Enamel modifies the dentinal body color, … the brightness (value) and acts as a selective light filter

A

increasing

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13
Q

What color is dentin generally?

A

reddish yellow

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14
Q

What does dentin posses that makes it fluorescent; light is reflected back with more energy than the original?

A

phytochrome and fluorophore

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15
Q

When does Dentin have the higher chromaticity?

A

when older; slow increase in orange-red color

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16
Q

Dentin is thicker due to what?

A

contraction of the pulp and it is replaced by secondary dentin

17
Q

What does the affect of dentin aging have on opacity?

A

dentin becomes more mineralized and looses opacity (more transparent)

18
Q

Enamel is responsible for regulating the …

A

Value, tooth brightness (has a high value)

19
Q

Enamel is characterized by a high degree of ….

A

translucency and unique light effects

20
Q

When using composite resin you should make the enamel layer thinning than natural enamel due to?

A

thicker composite lowering the value

21
Q

Blue or gray transparent effects found in the incisal 3rd and/or inter-proximal enamel (dentin-free area); Special Optical properties of transparence and iridescence

A

Opalescences

22
Q

The border between enamel and dentin, a highly fluorescent organic layer. Created after the dentinal body and before the final enamel layer.

A

Intermediate (mid) layer DEJ

23
Q

What 3 properties can be seen in the mid layer?

A
  1. Intensives
  2. Opalescences
  3. Characterizations
24
Q

Spots frequently found in natural enamel. They appear as white blurred stains of different types, that is, defined as points, clouds, or bands.

A

Intensives

25
Q

Existing color characteristics present in teeth, such as white or amber bands, enamel cracks, colored mammelons, and stains

A

Characterizations

26
Q

What elements affect color?

A
  1. Illumination
  2. Contrast Effects
  3. Viewer Associated Effects
27
Q

When 2 objects appearing to match in color under 1 condition show differences under another condition

A

Metamerism

28
Q

Poor lighting creates defects in … perception, crucial in dental color matching.

A

red-yellow

29
Q

How should the light be for color matching?

A

soft, diffuse, and white

30
Q

Visual phenomena that create optical illusions difficult to decipher

A

contrast effects

31
Q

Use a background with a … chroma relative to the shade of the tooth so color is more intense and easier to distinguish.

A

lower

32
Q

Larger teeth appear …, … teeth appear larger

A

lighter

33
Q

When one color is viewed immediately after another an afterimage often will appear.

A

Successive - Contrast effect

34
Q

When is maximum enamel dehydration?

A

30-45 mins

35
Q

Which tooth has the highest chroma of the dominate hue?

A

canine

Aesthetics (3 decks)

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