Deck 19: Instruments, Handpieces, and Accessories

Question 1

The mouth mirror is used to:

A) protect the tooth from frictional heat
B) retract and protect tissue
C) provide moisture control
D) smooth the completed restoration

Answer 1

retract and protect tissue

Question 2

Each bur makes an initial cut into the tooth, EXCEPT one. Which is the EXCEPTION?

A) Round
B) Pear
C) Inverted cone
D) End cutting

Answer 2

Inverted cone

Question 3

Which instruments follow the examination instruments on a tray setup?

A) Restorative
B) Hand-cutting
C) Accessory
D) Rotary

Answer 3

Hand-cutting

Question 4

Cutting and finishing _______ fit into a hand piece.

Question 5

Worn or dull burs are:

A) returned to the manufacturer for defect replacement
B) sharpened chairside with a diamond stone
C) transported in a bur block to a dental laboratory for sharpening
D) discarded in the sharps container

Question 6

The __________-speed hand piece is also referred to as the straight hand piece.

Question 7

An _________ abrasion hand piece is a small version of a sand blaster.

Question 8

Which is NOT an examination instrument?

A) Cotton pliers
B) Explorer
C) Hatchet
D) Mouth mirror

Question 9

Which instruments place, condense, and carve dental materials?

A) Restorative
B) Hand-cutting
C) Accessory
D) Examination

Question 10

Before a contaminated hand piece is removed from the dental unit, it should be run for at least:

A) 5 to 7 seconds
B) 10 to 15 seconds
C) 20 to 30 seconds
D) 45 to 60 seconds

Question 11

Which is an accessory instrument?

A) Carver
B) Amalgam well
C) Periodontal probe
D) Low-speed hand piece

Question 12

The ___________ hand piece uses a laser light beam instead of a rotary instrument.

Question 13

Which best defines torque?

A) Visible organic debris, most often blood or saliva.
B) The turning power of the instrument when pressure is applied.
C) Mechanical vibrations that result from a high-frequency electrical current.
D) The metal shaft used to attach accessories to the dental hand piece.

Question 14

Rubber points are used to:

A) adjust the occlusion of amalgam restorations
B) polish the anatomic grooves of metallic restorations
C) remove excess marginal filling material
D) cut quickly into the tooth

Question 15

The procedure tray is organized in sequential order from left to right because the clinical assistant transfers instruments to the dentist with his/her left hand.

A) Both the statement and the reason are correct and related.
B) Both the statement and the reason are correct but not related.
C) The statement is correct, but the reason is not.
D) The statement is not correct, but the reason is correct.

Question 16

The ______________-type angle holds the bur in place by grasping a small notch on the end of the shaft of the bur.

Question 17

_________________ instruments allow the dentist to examine the health status of the teeth and oral cavity.

Question 18

Which type of bur is compatible with a high-speed handpiece?

A) Friction-grip
B) Straight
C) Latch-type
D) Laboratory

Question 19

Hand pieces with ceramic bearings require:

A) lubrication before sterilization
B) lubrication after sterilization
C) lubrication before and after sterilization
D) no lubrication

Question 20

Which is a hand- (manual) cutting instrument?

A) Periodontal probe
B) Excavator
C) Composite instrument
D) Amalgam carrier

Question 21

Match each bur type to its use.

End cutting

A)Creates a shoulder for the margin of a crown preparation
B)Establishes retentive grooves
C)Provides angles to the walls of the prepared tooth
D)Forms the internal walls of the preparation
E)Provides initial entry to the tooth structure and removes decay

Question 22

Match each instrument with its classification.

Explorer

A)Rotary instrument
B)Restorative instrument
C)Examination instrument
D)Hand- (manual) cutting instrument

Question 23

Match each bur type to its use.

Tapered fissure cross-cut

A)Creates a shoulder for the margin of a crown preparation
B)Establishes retentive grooves
C)Provides angles to the walls of the prepared tooth
D)Forms the internal walls of the preparation
E)Provides initial entry to the tooth structure and removes decay

Question 24

Rotary instruments include the dental hand piece and the burs that fit into the hand piece.

Question 25

Match each number series with its corresponding bur type.

55 to 58 L

A)Round
B)Tapered fissure plain-cut
C)Pear
D)Inverted cone
E)Straight fissure plain-cut

Question 26

Match each instrument with its classification.

Amalgam condenser

A)Rotary instrument
B)Restorative instrument
C)Examination instrument
D)Hand- (manual) cutting instrument

Question 27

The amalgam _______________ is used to carry the amalgam to the prepared tooth.

Question 28

Match each number series with its corresponding bur type.

169 to 171 L

A)Round
B)Tapered fissure plain-cut
C)Pear
D)Inverted cone
E)Straight fissure plain-cut

Question 29

Match each number series with its corresponding bur type.

L to 10 L

A)Round
B)Tapered fissure plain-cut
C)Pear
D)Inverted cone
E)Straight fissure plain-cut

Question 30

Match each number series with its corresponding bur type.

1330 to 1331 L

A)Round
B)Tapered fissure plain-cut
C)Pear
D)Inverted cone
E)Straight fissure plain-cut

Question 31

The ___________ smoothes the amalgam before the material hardens.

Question 32

Match each bur type to its use.

Inverted cone

A)Creates a shoulder for the margin of a crown preparation
B)Establishes retentive grooves
C)Provides angles to the walls of the prepared tooth
D)Forms the internal walls of the preparation
E)Provides initial entry to the tooth structure and removes decay

Question 33

Match each instrument with its classification.

Bur

A)Rotary instrument
B)Restorative instrument
C)Examination instrument
D)Hand- (manual) cutting instrument

Question 34

A hand instrument is made up of four parts.

Question 35

Match each number series with its corresponding bur type.

to 37 L

A)Round
B)Tapered fissure plain-cut
C)Pear
D)Inverted cone
E)Straight fissure plain-cut

Question 36

Match each bur type to its use.

Straight fissure cross-cut

A)Creates a shoulder for the margin of a crown preparation
B)Establishes retentive grooves
C)Provides angles to the walls of the prepared tooth
D)Forms the internal walls of the preparation
E)Provides initial entry to the tooth structure and removes decay

Question 37

The _____________ removes soft dentin, debris, and decay from the tooth.

Question 38

Match each instrument with its classification.

Gingival margin trimmer

A)Rotary instrument
B)Restorative instrument
C)Examination instrument
D)Hand- (manual) cutting instrument

Question 39

Abrasive disks and wheels are attached to a ______________ which attaches these accessories to the dental hand piece.

Question 40

Match each bur type to its use.

Round

A)Creates a shoulder for the margin of a crown preparation
B)Establishes retentive grooves
C)Provides angles to the walls of the prepared tooth
D)Forms the internal walls of the preparation
E)Provides initial entry to the tooth structure and removes decay

Question 41

A prophy angle is used for holding polishing cups and brushes

Question 42

The Hollenback carver shapes the amalgam on the occlusal surface to create a normal anatomic appearance.