color selection

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color selection
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Hue Color Chroma Saturation Value
Black/White
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How important is it?
Where do I start?
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What are the different color selection modalities
available in the clinic for matching porcelain
and composite resin?

• Vitapan Classical
• Vita Toothguide 3-D Master
• Chromascop
• Easyshade
• Digital Imaging

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Vitapan Classical

• Presently most commonly used, but likely the
  least accurate for matching natural tooth shade
• Its creation was not based on any formal research
  of natural tooth color
• Effective for matching existing porcelain
  restorations created with this type of shade
  guide
• Has been the standard over the past number of
  years but the standard is changing

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Vitapan Classical
Color System

• A reddish-brown
• B reddish-yellow
• C gray
• D reddish-gray

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color conversion
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Before you grab the shade tab...
choose your basic color range
Red brown? A Yellow brown? B Grey? C Red
grey? D
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Red brown? Yellow brown? Grey? Red grey?
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Red brown? Yellow brown? Grey? Red grey?
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Then determine the chroma and value within that
hue
What shade do you select?
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Was it A?
Was it B?
Was it D?
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Vitapan Classical
Some recommend arranging your shade guide
according to value and suggest that if you at
least get the right value then the match will be
close enough
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Vita 3-D Master
Currently most accurate for matching natural
tooth color Designed after extensive research of
natural teeth
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Vita 3-D Master
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Vita 3-D Master
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Vita 3-D Master
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Vita 3-D Master
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Vita 3-D Master
RX
1M1 main body color 1M2 gingival seventh 1mm
incisal and proximal translucency
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Shade Selection Tips

• Avoid bright colors in your selection environment
  such as bright lipstick or dark tinted glasses
  etc.

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Different lighting Fluorecent
green Incandescent red Color corrected equal
parts red green and yellow Metamerizm A tooth
may refract light differently under different
lights. Taking a shade under natural light as
well as color corrected lighting may help with
selection Colorblindness 10 US males are
affected .3 females
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Vita Easyshade
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Vita Easyshade
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Vita Easyshade
Easyshade gave various readings for the same
shade tab, variably dependent on target area
B4 tab taken at incisal third gave A2 reading
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Vita Easyshade
Most predictable readings were taken at the
middle third of the shade tab
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Chromascop
Shade selection tabs designed for Empress all
ceramic restorations
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Faulty match due to shade selection after
dehydration of tooth had occurred (may take as
little as 2 minutes for dehydration to alter
tooth selection)
Composite may be placed at predicted thickness
without bonding and cured to verify color
selection while teeth are still hydrated
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Take Home Message

• Vitapan Classical for matching to old ceramic
  restorations
• Chromoscope for matching to Empress ceramic
  restorations
• Vita 3-D Master for matching to natural tooth
  color
• Vita Easyshade for verification of color for
  Classical or 3-D Master
• Measure Easyshade at middle third of shade tab
• Digital Photography for more precise laboratory
  communication regarding characterization and
  color blends
• Dont allow for color fatigue
• Remove distracting colors
• Consider comosite thickness when matching color
• A second set of eyes and a walk outside into
  natural light can always help
• Getting the right color makes a world of
  difference!

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Blue Tooth Technology