Color

Question 1

Secondary colors in the additive color mixing system are the

Answer 1

primary colors in the subtractive color system

Question 2

What are the primary colors in the subtractive system?

Answer 2

Yellow, cyan and magenta

Question 3

Blue is complementary to

Answer 3

yellow

Question 4

Result of mixing a color with its complementary is

Answer 4

achromatic (colorless)

Question 5

What is hue?

Answer 5

quality to distinguish one color family from another

Question 6

What determines hue?

Answer 6

Reflected wavelength

Question 7

What is chroma?

Answer 7

Quality of color, intensity

Question 8

What is value?

Answer 8

quality to distinguish a light color from a dark one

Question 9

Colors with low value numbers are termed

Answer 9

dark colors

Question 10

What is the most imp dimension of color?

Answer 10

Value

Question 11

What is the Vita recommended sequence to shade matching?

Answer 11

• Hue selection
• Chroma
• Value
• CheckH

Question 12

Hue range of teeth lies in the

Answer 12

yellow-red to red portion

Question 13

Value range of teeth is toward the

Answer 13

lighter portion

Question 14

Chroma range of teeth is toward the

Answer 14

lowers portion

Question 15

What is metamerism?

Answer 15

Phenomenon when color of 2 objects appears to match under one light source but not another

Question 16

What is opalescence?

Answer 16

Optical property of a material due to scattered light. Gives bluish appearance under light

Question 17

Best operatory illumination is provided by

Answer 17

all-luminous ceilings and open perimeter lighting

Question 18

Rods of eyes detect

Answer 18

lightness and darkness (value)

Question 19

Cones perceive the

Answer 19

chromatic aspects (hue and chroma)

Question 20

What is the ideal background for color matching?

Answer 20

Light gray

Question 21

Negative afterimage occurs because of fatigue of the

Answer 21

cone receptors

Question 22

How should pt be positioned?

Answer 22

Uprights at operators eye level, not supine

Question 23

How should the tooth condition be?

Answer 23

• Cleaned
• Moisture retained in teeth
• No rubber dam

Question 24

What distance should the operator be?

Answer 24

18 inches. 3 to 6 ft for value

Question 25

What usually has the most clear hue?

Answer 25

Canine cervical part