Deck 18: Basic Chairside Instruments and Tray Systems

Question 1

When using the microetcher, the dentist and assistant should wear protective eyewear and a mask.

Answer 1

True

Question 2

Stones are used in the laboratory to adjust appliances.

Answer 2

True

Question 3

The second number in Black's Three Number Formula is the measurement of the ____________.

A) width of the blade
B) length of the blade
C) angle of the blade to the long axis of the handle
D) none of the above

Answer 3

length of the blade

Question 4

A monangle has how many angles?

A) One
B) Two
C) Three
D) None of the above

Question 5

The electric handpieces have greatly improved and can be sterilized.

Question 6

The parts of a dental hand instrument include all EXCEPT the ____________.

A) handle
B) shank
C) angle
D) working end

Question 7

Metal plastic filling instruments are used to place composite restorative materials.

Question 8

There are a variety of finishing burs and bur sizes. Fissurotomy bur is designed to access extremely small areas.

Question 9

Dental instruments must be properly cared for to ensure the instruments will last a long time. Instruments should be cleaned as soon as possible after use.

Question 10

Some stones are considered heatless, and they are used to polish a restoration without creating frictional heat.

Question 11

Use of instrument cassettes can reduce the risk of injury to the dental assistant during the cleaning process.

Question 12

The handle of an instrument is where the instrument is held by the operator. Some instrument handles are ergonomically designed.

Question 13

Lengths of bur shanks vary and are designated by a letter designation. The "S" is for short shank.

Question 14

Finishing burs are color coded for easy identification. A yellow band indicates 8 and 12 blades on the finishing bur.

Question 15

Surgical burs can be used in the low-speed handpiece.

Question 16

Examples of hand-cutting instruments include:
1) angle formers
2) chisels
3) excavators
4) carriers
5) plastic filling instruments

A) 1, 2, 3, 4, 5
B) 4, 5
C) 1, 2, 3
D) 2, 3, 4, 5

Question 17

Rotary instruments are referred to as burs.

Question 18

A light source available on high-speed handpieces is a fiber-optic light source.

Question 19

Finishing burs can have up to thirty blades for ultra-fine finishing.

Question 20

Laboratory burs used to adjust partials, dentures, and custom trays may also be called vulcanite or acrylic burs.

Question 21

Articulation paper is held in place with ____________.

A) articulation forceps
B) locking cotton pliers
C) either a or b
D) crown and collar scissors

Question 22

Cutting burs have how many blades?

A) Six
B) Twelve
C) Twenty-five
D) Thirty

Question 23

The Hollenback and discoid-cleoid are examples of amalgam ____________.

A) carvers
B) carriers
C) condensers
D) none of the above

Question 24

The use of a mirror to view areas of the oral cavity not seen directly is termed ____________.

A) indirect vision
B) direct vision
C) reflection of light
D) transillumination

Question 25

Which type of mirror magnifies the image?

A) Plane surface
B) Concave surface
C) Front surface
D) Regular surface

Question 26

The instrument of choice to place and condense pliable restorative materials in the cavity prep is the ____________.

A) carrier
B) condenser
C) plugger
D) plastic filling instrument

Question 27

A Wedelstaedt chisel has how many angles?

A) None, but it has a slight curve
B) One
C) Two
D) Three

Question 28

The bur used in the straight low-speed handpiece is the ________ shank.

A) straight
B) latch-type
C) friction-grip
D) none of the above

Question 29

The bur used in the high-speed handpiece is the ________ shank.

A) straight
B) latch-type
C) friction-grip
D) none of the above

Question 30

The beavertail, egg, ball, and T-ball are examples of amalgam ____________.

A) carvers
B) carriers
C) condensers
D) burnishers

Question 31

A(n) ________ is used in a pulling motion to smooth and shape the floor of the cavity preparation.

A) hatchet
B) hoe
C) chisel
D) excavator

Question 32

Bur numbers describe the:
1) shape
2) size
3) variation
4) handpiece used
5) material used on

A) 1, 2, 3, 4, 5
B) 2, 3, 5
C) 1, 2
D) 1, 2, 3

Question 33

The bur used in the contra-angle handpiece is the ________ shank.

A) straight
B) latch-type
C) friction-grip
D) none of the above

Question 34

The instrument used to remove carious material and debris from the teeth is the ____________.

A) hatchet
B) hoe
C) chisel
D) excavator

Question 35

Amalgam is packed into the cavity preparation by ____________.

A) condensers
B) pluggers
C) either a or b
D) neither a nor b

Question 36

An instrument used to place and remove items from the oral cavity is ____________.

A) surgical forceps
B) transfer forceps
C) cotton pliers
D) HVE

Question 37

Periodontal probes are used to ____________.

A) examine the hard tissues of the teeth
B) remove calculus
C) measure the depth of the gingival sulcus
D) make bleeding points during periodontal surgery

Question 38

The pigtail, shepherd's hook, and the right angle are examples of a(n) ____________.

A) explorer
B) mirror
C) excavator
D) none of the above

Question 39

The hand instrument used to shape and plane enamel and the dentin wall of the cavity prep is the ____________.

A) hoe
B) hatchet
C) excavator
D) chisel

Question 40

Burs are made of:
1) steel
2) tungsten carbide
3) aluminum
4) gold

A) 1, 2, 3, 4
B) 2, 3, 4
C) 2 only
D) 1, 2

Question 41

The kind of rotary instrument used for rapid reduction of tooth structure is a ____________.

A) carbide bur
B) diamond
C) vulcanite bur
D) none of the above

Question 42

The electric handpieces have greatly improved in which of the following ways?

A) Quiet
B) Vibration free
C) Efficient
D) All of the above

Question 43

Frictional heat is produced when the high-speed handpiece is used. The coolant is used to ____________.

A) prevent the handpiece from overheating
B) keep the handpiece from burning the operator's hand
C) keep the tooth cool
D) none of the above

Question 44

Burs used to adjust partial or full dentures are called ____________.

A) diamonds
B) laboratory
C) vulcanite
D) either b or c

Question 45

Which type of burs are used to remove carious tooth structure?

A) Round
B) Inverted cone
C) Wheel
D) Either a or b

Question 46

The part of the handpiece that attaches to the power source is the ____________.

A) working end
B) head
C) shank
D) connection end

Question 47

The low-speed handpiece is used with which of the following?

A) Long-shank rotary instruments
B) Contra-angle attachment
C) Right-angle attachment
D) All of the above

Question 48

Rods of various lengths used in low-speed handpieces to attach abrasives are termed ____________.

A) discs
B) diamonds
C) chuck
D) mandrels

Question 49

The bur is placed in the ________ on the handpiece.

A) head
B) chuck
C) handle
D) fiberoptic opening

Question 50

A high-speed handpiece operates at ________ rpm.

A) 30,000
B) 50,000
C) 100,000
D) 400,000

Question 51

Jo-dandy and separating discs are types of ____________.

A) carborundum
B) diamond
C) sandpaper
D) none of the above

Question 52

The rubber cups or brushes are placed on ____________.

A) high-speed handpieces
B) straight handpieces
C) contra angles
D) right angles

Question 53

The bur of choice to open and extend the cavity preparation is the ____________.

A) round
B) pear
C) end-cutting
D) wheel

Question 54

Finishing burs have ________ number of blades.

A) increased
B) decreased

Question 55

Abrasives such as garnet, sand, emery, and cuttlefish are examples of ________ discs.

A) diamond
B) carborundum
C) stone
D) sandpaper

Question 56

Which type of bur is used to form the shoulders for a crown preparation?

A) Round
B) Pear
C) End-cutting
D) Wheel

Question 57

The low-speed handpiece operates under ________ rpm.

A) 30,000
B) 50,000
C) 100,000
D) 400,000

Question 58

The best way to maintain and sterilize a handpiece is to ____________.

A) ask the dentist
B) always clean and lubricate the handpiece
C) disinfect instead of sterilize when unsure
D) follow manufacturer's directions

Question 59

Rubber points and wheels are used for all EXCEPT ____________.

A) cutting
B) finishing
C) polishing
D) defining anatomy in amalgam

Question 60

Finishing burs have more blades for ultra-fine finishing and are used to smooth, trim and finish. A color-coding band system is used to identify the significant difference. The red band identifies which number of blades?

A) 16
B) 30
C) 12
D) None of the above

Question 62

Identify the following bur shape.

A) Tapered fissure straight
B) Plain fissure straight
C) Plain fissure cross-cut
D) Tapered fissure cross-cut

Question 63

Identify the following cutting instrument:

A) Mesial marginal trimmer
B) Enamel hatchet
C) Distal marginal trimmer
D) Binangle chisel

Question 64

Identify the following cutting instrument:

A) Mesial marginal trimmer
B) Binangle chisel
C) Distal marginal trimmer
D) Enamel hatchet

Question 65

Identify the following bur shape.

A) Pear
B) End cutting
C) Round
D) Wheel

Question 66

Identify the following bur shape.

A) Tapered fissure straight
B) Plain fissure straight
C) Plain fissure cross-cut
D) Tapered fissure cross-cut

Question 67

Microetchers are used for which of the following procedures?

A) Denture repairs
B) Pit and fissure sealant preparation
C) Roughening surface for bonding orthodontic bands
D) All of the above

Question 68

Identify the following bur shape.

A) Plain fissure cross-cut
B) Tapered fissure straight
C) Taper fissure cross-cut
D) Plain fissure straight