Question 1

The first dental handpiece was introduced in the:

Accepted Answer

A)  1920s.
B)  1930s.
C)  1940s.
D)  1950s.E) A) and B)
F) C) and D)

Question 2

The prophylaxis angle attaches to the _____ handpiece and is used to polish the teeth.

Accepted Answer

A)  laser
B)  laboratory
C)  high-speed
D)  low-speedE) A) and D)
F) B) and C)

Question 3

The most commonly shaped finishing burs used are _____-shaped.

Accepted Answer

A)  flame
B)  round
C)  tapered
D)  all of the aboveE) A) and D)
F) B) and C) D

Question 4

A laser handpiece uses a beam of light to do which of the following procedure(s) ?

Accepted Answer

A)  Remove old restorations
B)  Cauterize soft tissue
C)  Vaporize decayed tooth structure
D)  Both b and cE) A) and B)
F) A) and C)

Question 5

The _____ handpiece operates from air pressure and reaches speeds up to 450,000 rpm.

Accepted Answer

A)  high-speed
B)  laser
C)  ultrasonic
D)  laboratoryE) None of the above
F) C) and D)

Question 6

Advantages of a laser handpiece over a high-speed handpiece include:

Accepted Answer

A)  faster preparation time.
B)  immediate vaporization of previous amalgam restorations.
C)  use of an air turbine.
D)  treatment that is usually painless, so anesthesia is unnecessary.E) A) and B)
F) B) and C)

Question 7

What is the name of a metal shaft on which sandpaper disks or other abrasives are mounted?

Accepted Answer

A)  Shaft
B)  Working end
C)  Screw
D)  MandrelE) A) and B)
F) B) and D)

Question 8

The ultrasonic handpiece is used for:

Accepted Answer

A)  cavity preparation.
B)  polishing.
C)  scaling.
D)  adjusting dentures.E) B) and D)
F) A) and C)

Question 9

The most frequently used device in restorative dentistry is the:

Accepted Answer

A)  amalgamator.
B)  dental handpiece.
C)  prophy angle.
D)  x-ray machine.E) A) and D)
F) A) and C)

Question 10

A 170 bur is used to:

Accepted Answer

A)  provide angles to the walls of a cavity preparation.
B)  create a shoulder for the margin of a crown preparation.
C)  remove decay.
D)  form internal walls of a cavity preparation.E) None of the above
F) B) and C)

Question 11

Rotary instruments were introduced in dentistry in the ______ to complement the use of hand instruments in the cutting,grinding,and polishing procedures.

Accepted Answer

A)  1920s
B)  1950s
C)  1970s
D)  1940sE) B) and D)
F) B) and C)

Question 12

Laboratory burs have a _____ shank and a _____ head than dental burs.

Accepted Answer

A)  shorter; smaller
B)  longer; smaller
C)  shorter; larger
D)  longer; largerE) C) and D)
F) None of the above

Question 13

Since the late 1940s,_____ burs have been used for cavity preparation.

Accepted Answer

A)  steel
B)  tungsten carbide
C)  molybdenum
D)  palladiumE) All of the above
F) C) and D)

Question 14

A _____-shaped diamond rotary instrument is used to cut through fixed prostheses.

Accepted Answer

A)  cylinder
B)  flame
C)  wheel
D)  discE) C) and D)
F) A) and C)

Question 15

A dental handpiece is identified as a _____ instrument that _____ be sterilized before reuse.

Accepted Answer

A)  critical; must
B)  semicritical; must
C)  semicritical; may or may not
D)  noncritical; may not beE) A) and B)
F) B) and C)

Question 16

Restorative burs are made from what material?

Accepted Answer

A)  Gold
B)  Tungsten carbide
C)  Titanium
D)  Stainless steelE) A) and C)
F) A) and B)

Question 17

The _____ handpiece supplies a water coolant,because it can generate enough frictional heat on a tooth to cause possible damage to the pulp.

Accepted Answer

A)  air-abrasion
B)  high-speed
C)  low-speed
D)  ultrasonicE) A) and B)
F) A) and D) B

Question 18

Which handpiece would be used for porcelain adjustments?

Accepted Answer

A)  High-speed
B)  Ultrasonic
C)  Low-speed
D)  LaserE) A) and C)
F) C) and D)

Question 19

What handpiece uses mechanical radiant energy of water and sound vibrations to create a pulsating effect on a tooth surface to remove calculus and stains?

Accepted Answer

A)  High-speed
B)  Laser
C)  Low-speed
D)  UltrasonicE) All of the above
F) A) and D) D

Question 20

The air abrasion technique uses high-pressure delivery of _____ particles through a small probe to remove tooth structure.

Accepted Answer

A)  zirconium silicate
B)  aluminum oxide
C)  silicon carbide
D)  tin oxideE) None of the above
F) A) and B)

Exam 35: Dental Handpieces and Accessories

The first dental handpiece was introduced in the:

Correct AnswerverifiedShow Answer

The prophylaxis angle attaches to the _____ handpiece and is used to polish the teeth.

Correct AnswerverifiedShow Answer

The most commonly shaped finishing burs used are _____-shaped.

Correct AnswerverifiedD

A laser handpiece uses a beam of light to do which of the following procedure(s) ?

Correct AnswerverifiedShow Answer

The _____ handpiece operates from air pressure and reaches speeds up to 450,000 rpm.

Correct AnswerverifiedShow Answer

Advantages of a laser handpiece over a high-speed handpiece include:

Correct AnswerverifiedShow Answer

What is the name of a metal shaft on which sandpaper disks or other abrasives are mounted?

Correct AnswerverifiedShow Answer

The ultrasonic handpiece is used for:

Correct AnswerverifiedShow Answer

The most frequently used device in restorative dentistry is the:

Correct AnswerverifiedShow Answer

A 170 bur is used to:

Correct AnswerverifiedShow Answer

Rotary instruments were introduced in dentistry in the ______ to complement the use of hand instruments in the cutting,grinding,and polishing procedures.

Correct AnswerverifiedShow Answer

Laboratory burs have a _____ shank and a _____ head than dental burs.

Correct AnswerverifiedShow Answer

Since the late 1940s,_____ burs have been used for cavity preparation.

Correct AnswerverifiedShow Answer

A _____-shaped diamond rotary instrument is used to cut through fixed prostheses.

Correct AnswerverifiedShow Answer

A dental handpiece is identified as a _____ instrument that _____ be sterilized before reuse.

Correct AnswerverifiedShow Answer

Restorative burs are made from what material?

Correct AnswerverifiedShow Answer

The _____ handpiece supplies a water coolant,because it can generate enough frictional heat on a tooth to cause possible damage to the pulp.

Correct AnswerverifiedB

Which handpiece would be used for porcelain adjustments?

Correct AnswerverifiedShow Answer

What handpiece uses mechanical radiant energy of water and sound vibrations to create a pulsating effect on a tooth surface to remove calculus and stains?

Correct AnswerverifiedD

The air abrasion technique uses high-pressure delivery of _____ particles through a small probe to remove tooth structure.

Correct AnswerverifiedShow Answer

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D

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Laboratory burs have a _ shank and a _ head than dental burs.

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A dental handpiece is identified as a _ instrument that _ be sterilized before reuse.

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B

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