Deck 58: Coronal Polishing

Question 1

Options available if stains cannot be removed include:

A)tooth whitening.
B)cosmetic restoration.
C)laminate veneers.
D)all of the above.

Answer 1

all of the above.

Question 2

Recommended polishing pastes have _____ polish and _____ abrasion levels.

A)high; high
B)high; low
C)low; high
D)low; low

Answer 2

high; low

Question 3

Polishing cups:

A)remove stain from the clinical crowns of teeth.
B)are made from gutta-percha.
C)should be rotated rapidly to remove stain from teeth.
D)are available in a synthetic material for patients with latex allergies.

Answer 3

are available in a synthetic material for patients with latex allergies.

Question 4

The term fulcrum is used to describe the placement of the _____ finger of the hand,which holds the instrument or handpiece.

A)first
B)second
C)third
D)fourth

Question 5

Air-powder polishing is used to remove:

A)supragingival plaque.
B)subgingival plaque.
C)supragingival stain.
D)subgingival calculus.

Question 6

______ polishing refers to polishing root surfaces that have been exposed during periodontal surgery.

A)Root
B)Apical
C)Therapeutic
D)Coronal

Question 7

_____ polishing paste is recommended for use on filled hybrid composites and resin restorations.

A)Regular prophy
B)Micron-fine sapphire
C)Diamond
D)Aluminum oxide

Question 8

An oral prophylaxis includes:

A)fluoride treatment.
B)removal of calculus and debris.
C)examination.
D)removal of decay.

Question 9

Which of the following choices represents an endogenous stain?

A)An excessive amount of fluoride during the development of the tooth
B)Blueberries
C)Dental amalgam that has been incorporated into tooth structure
D)Coffee

Question 10

The purpose of selective polishing is to polish only the:

A)teeth that are visible.
B)occlusal surface of the teeth.
C)teeth that have stains.
D)facial surfaces of teeth.

Question 11

The air-polishing technique uses a specially designed handpiece,with a nozzle that delivers a high-pressure stream of warm water and:

A)calcium tungstate.
B)calcium hydroxide.
C)sodium hypochlorite.
D)sodium bicarbonate.

Question 12

A stain that may be removed from the surfaces of the teeth is called a(n) ____ stain.

A)extrinsic
B)natural
C)intrinsic
D)infected

Question 13

Disclosing agent can be used for:

A)identifying areas of plaque.
B)evaluating the effectiveness of the polishing.
C)showing intrinsic stain.
D)both a and b.

Question 14

Selective polishing is recommended,because the:

A)abrasive agent used during coronal polishing actually removes a small amount of the fluoride-rich outer enamel layer.
B)abrasive agent used during coronal polishing actually removes a small amount of the fluoride-depleted outer enamel layer.
C)abrasive agent used during coronal polishing impedes uptake of fluoride by the outer layer of enamel.
D)fluoride contained in the abrasive agent is not taken up by the teeth.

Question 15

Exogenous stains are caused by environmental sources and are classified into subdivisions,including which of the following?

A)Intrinsic stains
B)Endogenous stains
C)Extrinsic stains
D)Both a and c

Question 16

Polishing _____ the uptake of professionally applied fluoride.Therefore,polishing is _____ before fluoride application.

A)improves; necessary
B)improves; not necessary
C)does not improve; necessary
D)does not improve; not necessary

Question 17

Bristle brushes are used to remove stains from:

A)exposed cementum.
B)exposed dentin.
C)deep pits and fissures on the enamel surfaces.
D)interproximal subgingival areas.

Question 18

Coronal polishing is a technique:

A)that is a substitute for an oral prophylaxis.
B)used to remove calculus, debris, stain, and plaque from teeth.
C)used to remove plaque and stains from the coronal surfaces of the teeth.
D)that can be performed by any dental assistant.

Question 19

When using a bristle brush,the brush should be:

A)rotating rapidly before touching the tooth surface.
B)applied lightly to the tooth surface while revolving at the lowest speed.
C)placed on the tooth while not rotating, and then rotated slowly.
D)placed on the tooth while not rotating, and then rotated in a reverse direction.

Question 20

Polishing agents are available as commercial premixed pastes or as powders mixed with water or mouthwash to form a(n) _____ used on the polishing cup.

A)emulsion
B)slurry
C)cellulitis
D)mandrel

Question 21

Black stain:

A)has no relationship to poor oral hygiene.
B)is rare.
C)is usually from food pigments.
D)covers most of the crowns of teeth.

Question 22

A _____ is a point of support that works as a lever for movement.

A)fulcrum
B)stroke
C)handpiece
D)thermostat

Question 23

A right-handed operator generally begins seated at ____ o'clock and a left-handed operator at _____ o'clock.

A)8; 3
B)11; 1
C)10; 2
D)anywhere the operator is comfortable

Question 24

What damage can result from using the prophy angle at a high speed?

A)It can cause frictional heat that can damage the tooth.
B)It can remove dentin.
C)It can cause frictional heat that can burn the gingiva.
D)Both a and c can result.

Question 25

The lingual surfaces of the maxillary right quadrant are polished with the patient's head positioned ______ the operator.

A)up and toward
B)up and away from
C)down and toward
D)down and away

Question 26

The operator should ask the patient to ______ throughout the procedure.

A)wear safety glasses
B)keep their eyes closed
C)keep the mouth open wide
D)all of the above

Question 27

The ______ stain found on some children's teeth may be from poor hygiene and the fungi that are retained in bacterial plaque.

A)black
B)green
C)orange
D)red

Question 28

The purpose of a fulcrum is to provide:

A)pressure to the fingers.
B)better retraction.
C)stability to the hand.
D)movement for the arm.

Question 29

A stain that cannot be removed from the surfaces of the teeth is called a(n) ____ stain.

A)extrinsic
B)natural
C)intrinsic
D)infected

Question 30

When polishing the mandibular arch,the patient's chin should be _____ and the chin should be _____ for the maxillary.

A)up; up
B)down; down
C)up; down
D)down; up

Question 31

A stain that is dull and yellowish/brown in color is caused by:

A)cigarettes or cigars.
B)inadequate toothpaste or poor hygiene.
C)tetracycline.
D)all of the above.

Question 32

The rubber cup should be held:

A)flat against the tooth.
B)at a 45-degree angle against the tooth.
C)on each tooth for 10 seconds.
D)both a and c.

Question 33

The right-angle handpiece is held with a ____ grasp.

A)pen
B)palm-thumb
C)reverse palm-thumb
D)any that is comfortable

Question 34

If scaling the teeth is indicated before polishing,the _____ performs the scaling.

A)DDS
B)EFDA or RDA
C)RDH
D)either a or c

Question 35

Which is the most common technique for stain removal?

A)Using a scaler
B)Using a toothbrush
C)Flossing
D)Rubber cup polishing

Question 36

Which of the following is not a possible negative effect of coronal polishing?

A)Dentinal hypersensitivity during and after the appointment
B)Loss of enamel
C)Scratches or rough surfaces left on restorations
D)Decreased fluoride uptake

Question 37

To avoid injury,the rubber polishing cup is directed ______ the gingival third and pressed ______ against the tooth surface.

A)toward; lightly
B)away from; lightly
C)toward; firmly
D)toward; Lightly