DENTAL ASSISTANT ONLINE EXAM PRACTICE KIT 3

Question 1 of 150

1. Question

1 points

Where should cotton rolls be placed during topical fluoride application?

Between the incisors.
Between the arches.
Between the back molars.
Between the front teeth.

Question 2 of 150

2. Question

1 points

Retractors are used to do which of the following?

Ensure an unobstructed view of the treatment site by deflecting tissue.
Clear debris from the treatment site.
Prepare a tooth for extraction.
Hold open the canal during treatment

Question 3 of 150

3. Question

1 points

Primary impressions are often used for prosthetic work. For more accurate impressions, such as for crowns or bridges, secondary impressions are required. Which material is best suited for secondary impressions?

Alginate.
Agar.
Elastomers.
Hydrocolloids.

Question 4 of 150

4. Question

1 points

A patient requires a crown. This requires a root canal first. What instruction would you give before the second visit?

Place pressure on the tooth when eating.
Avoid fluids.
Do not pull floss through the gap.
There are no special precautions.

Question 5 of 150

5. Question

1 points

Surgical curettes are used for which of the following?

Debridement of the tooth socket.
Trimming of the gingiva.
Removing carious material.
Removing calculus.

Question 6 of 150

6. Question

1 points

You are preparing an instrument tray for an amalgam procedure. Which of the following is NOT part of the instruments and materials needed?

Surgical knife.
Burs.
Mixing pad.
Excavators.

Question 7 of 150

7. Question

1 points

Which of the following would you use to isolate teeth during short dental procedures?

Rubber dam.
Utility wax.
Broaches.
Cotton rolls.

Question 8 of 150

8. Question

1 points

Cement supplies can now be purchased in capsules. Advantages of pre-portioned cement powder and liquid includes all of the following EXCEPT for they:

Ensure consistent powder/liquid ratios.
Reduce waste and are convenient.
Ensure the strength of the lining.
Have unreliable setting times.

Question 9 of 150

9. Question

1 points

After 1, the Universal Numbering System continues in which direction through the oral cavity?

To the left.
To the right.
Alternating lower and upper.
Alternating left to right

Question 10 of 150

10. Question

1 points

Articulating paper comes in all but which of the following colors?

Red
Blue
Black.
Purple.

Question 11 of 150

11. Question

1 points

Which of the following is NOT located on the assistant’s cart?

Saliva ejector.
Air water syringe.
Dental handpieces.
High volume evacuator.

Question 12 of 150

12. Question

1 points

You have just placed cotton padding in the mouth of an oral surgery patient after an extraction. How long should you tell the patient to keep the cotton in place?

24 hours.
1 hour.
5 minutes.
30 minutes.

Question 13 of 150

13. Question

1 points

Staff meetings, holidays, dentist and staff vacations, and starting and closing times are all components of:

The calendar.
The office recall system.
Units in the day.
The appointment book.

Question 14 of 150

14. Question

1 points

What occurs first when a tooth is erupting?

Occlusal contact.
Movement.
Penetration.
Root formation.

Question 15 of 150

15. Question

1 points

When a patient is experiencing an angina attack, the healthcare worker should administer:

Nitroglycerin.
Epinephrine.
Orange juice.
Nicotine.

Question 16 of 150

16. Question

1 points

Which of the following is a benefit of fluoride toothpaste use?

It eliminates the need for professional fluoride treatment.
It successfully eliminates advanced decay.
It provides higher concentrations of fluoride than professional treatments.
It provides daily fluoride, which has an cumulative effect.

Question 17 of 150

17. Question

1 points

Absorbent paper points are used for all but which of the following?

To dry canals.
To measure the patient's occlusion.
To take cultures of the canal.
To place medications into the canal.

Question 18 of 150

18. Question

1 points

Which of the following would you expect to see of a patient in the subsupine position?

Legs lower than the head.
Head slightly lower than the legs.
Significant bending at the waist.
Head and legs are level.

Question 19 of 150

19. Question

1 points

Which of the following should you use to scale the majority of the surface of a tooth when removing calculus?

Exploratory stroke.
Vertical stroke.
Horizontal stroke.
Oblique stroke.

Question 20 of 150

20. Question

1 points

Which of the following instruments would you choose to plane the enamel on a Class III cavity preparation?

Straight chisel.
Binangle chisel.
Wedelstaedt chisel.
Hatchet

Question 21 of 150

21. Question

1 points

Which of the following should be placed furthest to the LEFT on an anesthetic tray set up?

Gauze sponge.
Aspirating syringe
Topical anesthetic.
Local anesthetic cartridges.

Question 22 of 150

22. Question

1 points

Duties that can be performed by a dental assistant are determined by:

Federal law.
The dentist.
State law.
Local dentist association.

Question 23 of 150

23. Question

1 points

An I.V. infusion set should be included in:

Patient management.
The dental office restroom
The emergency kit.
Syncope management.

Question 24 of 150

24. Question

1 points

During a procedure, your patient tells you that she feels very panicked. Her heart has begun beating very fast, and she is short of breath. This patient is likely experiencing which of the following?

Hyperventilation.
Myocadial infarction.
Syncope.
Hypoglycemia.

Question 25 of 150

25. Question

1 points

Incisors are often marked by a V-shaped eminence near the gum. This is known as which of the following?

Uvula.
Aveoli.
Cingulum.
Rima

Question 26 of 150

26. Question

1 points

Which of the following materials would you choose to make dies of teeth?

Dental stone.
Model plaster.
Die stone.
Alginate.

Question 27 of 150

27. Question

1 points

Which of the following instruments would you choose to remove deposits from the root of a tooth?

Periodontal probe.
Periodontal chisel.
Periodontal hoe.
Periodontal curette.

Question 28 of 150

28. Question

1 points

Which of the following is the SMALLEST size of tapered fissure cross-cut bur?

169
39
60
699

Question 29 of 150

29. Question

1 points

What does xerostomia increase?

Occlusion.
Eruption.
Saliva.
Tooth decay

Question 30 of 150

30. Question

1 points

What is necessary if a patient hemorrhages

Hold pressure on the wound.
Allow the patient to rest.
Drop the pressure point.
Administer medication.

Question 31 of 150

31. Question

1 points

What is the MOST commonly used impression material?

Polyether.
Alginate.
Polysulphide.
Silicone.

Question 32 of 150

32. Question

1 points

Which of the following instruments would you choose to reduce the incisal edge of a tooth during crown preparation?

Diamond disc.
Diamond bur flame.
Diamond bur wheel
Finishing bur.

Question 33 of 150

33. Question

1 points

Which of the following instruments would you use to pass dental materials during cavity restoration?

Hoe
Hatchet.
IPC instrument
Woodson carver.

Question 34 of 150

34. Question

1 points

Permanent filling materials include all of the following EXCEPT for

Amalgam.
Composite resins.
Glass ionomer cement.
Porcelain.

Question 35 of 150

35. Question

1 points

Which of the following is NOT true of normal adult molars?

They are crested by tubercles.
They have convex lingual surfaces.
They have concave buccal surfaces
They are sometimes called multicuspids

Question 36 of 150

36. Question

1 points

Which of the following instruments would you choose to contour the alveolar bone?

Finishing bur.
Surgical bur.
Diamond bur wheel.
Beavertail burnisher.

Question 37 of 150

37. Question

1 points

Protect health information would include all of the following EXCEPT for:

The patient's name.
The patient's phone number.
The patient's date of birth.
The provider's name.

Question 38 of 150

38. Question

1 points

A binangle chisel would be an appropriate choice to use on the restoration of which of the following classes of cavity?

Class II.
Class III
Class IV.
Class I.

Question 39 of 150

39. Question

1 points

A normal human mouth contains how many canine teeth?

Six.
Two.
Four.
Eight.

Question 40 of 150

40. Question

1 points

Mercury in dental amalgam has been a topic of controversy and a safety concern for many years. The problem with mercury is it is a:

Nephrotoxin.
Neurotoxin.
Hematoxin.
Hepatotoxin.

Question 41 of 150

41. Question

1 points

The dental lathe may be used for all but which of the following?

Trimming a removable appliance.
Contouring a custom tray.
Polishing a permanent appliance.
Smoothing a custom tray.

Question 42 of 150

42. Question

1 points

Why would atropine be administered?

Decrease pulse rate.
Decrease respiration
Increase pulse rate.
Increase respiration.

Question 43 of 150

43. Question

1 points

What is the risk of using general anesthesia on a patient with a respiratory disorder?

Candidiasis.
Endocarditis
Angina.
Hypoxia.

Question 44 of 150

44. Question

1 points

When instructing a patient how to use a rolling toothbrush stroke, how many times should you tell him or her to roll the brush?

5 times over the entire brushing period.
5 times per area of the mouth.
10 times per area of the mouth.
10-15 times over the course of the brushing period.

Question 45 of 150

45. Question

1 points

A material and safety data sheet accompanies the purchase of:

Orange solvent.
X-ray film.
Glutaraldehyde solution.
All of the above.

Question 46 of 150

46. Question

1 points

How many molars would you expect to find in a normal human mouth?

4
8
12
16

Question 47 of 150

47. Question

1 points

You are preparing an instrument tray for an amalgam procedure. Which of the following is NOT part of the instruments and materials needed

Burs.
Excavators.
Mixing pad.
Surgical knife.

Question 48 of 150

48. Question

1 points

A nervous patient hyperventilates and is unable to hold his or her breath. What should be done?

Have the patient lean forward and breathe.
Perform Heimlich maneuver.
Have the patient breathe into a paper bag.
Ask the patient to lie back and relax.

Question 49 of 150

49. Question

1 points

Which of the following is a sign that a patient may be receiving too high a dose of nitrous oxide?

Tingling in the hands and feet.
Feeling of floating.
Uncontrollable giggling.
General sense of disconnectedness.

Question 50 of 150

50. Question

1 points

Which of the following instruments would you choose for rapid reduction of a tooth when a parallel wall and flat floor are needed for a crown preparation?

Diamond bur flat-end cylinder.
Diamond bur flat-end taper.
Diamond bur flame.
Diamond bur wheel.

Question 51 of 150

51. Question

1 points

What is the purpose of a personal monitoring device for radiation employees?

To monitor employee radiation exposure.
To better show the employee name badge.
To track where the employee goes on the internet.
To monitor how many steps the employee walks in a day.

Question 52 of 150

52. Question

1 points

An item that should never be worn when processing film is:

A lab coat.
A mask.
Contaminated gloves.
Protective eyewear.

Question 53 of 150

53. Question

1 points

How should rollers be cleaned?

Autoclave.
Barrier cover.
Detergent.
Steam.

Question 54 of 150

54. Question

1 points

Cheryl is mounting a radiograph of the maxillary posterior area. What landmarks will prove most useful during this process?

Internal oblique ridge.
Alveolar canals.
Zygomatic bone.
Floor of the maxillary sinus.

Question 55 of 150

55. Question

1 points

This x-ray displays (a) ______.

Milk teeth.
A crushed lower jaw.
Severe decay on the upper teeth.
Cavity.

Question 56 of 150

56. Question

1 points

A radiograph with high resolution is

Blurry.
Distorted
Sharp.
Fuzzy.

Question 57 of 150

57. Question

1 points

In an automatic processor, the replenisher switch should be activated after processing:

50 periapical films.
15 occlusal films.
30 bitewing films.
90 periapical films

Question 58 of 150

58. Question

1 points

Drying processed films too rapidly can cause:

Cracked film.
Fogging
Blurring.
Faint images.

Question 59 of 150

59. Question

1 points

What angle should the film be to the x-ray beam

180 degree angle.
45 degree angle.
90 degree angle.
70 degree angle.

Question 60 of 150

60. Question

1 points

The time between an x-ray exposure to the time there is noticeable damage is known as

Time lapse.
Latent period.
Radiation period.
ALARA.

Question 61 of 150

61. Question

1 points

Dental anomalies such as supernumerary teeth are best examined using:

Panoramic film.
Bitewing.
Periapical film.
Occlusal film.

Question 62 of 150

62. Question

1 points

How many film sizes do you have to choose from with a bitewing radiograph?

1
2
3
4

Question 63 of 150

63. Question

1 points

Which of the following is an example of a non-stochastic health effect?

Altered DNA.
Hair loss.
Genetic mutation.
Cancer.

Question 64 of 150

64. Question

1 points

What error may lead to compensating by overexposing and underdeveloping dental film?

Using incorrect exposure times.
Failing to maintain darkness in the processing room
Using chemicals that need replenishing.
Failing to maintain adequate processing temperature

Question 65 of 150

65. Question

1 points

Radiation can cause

Short term effects.
Long term effects.
Both short term and long term effects.
Zero effects.

Question 66 of 150

66. Question

1 points

Which dosimeter is often used as a supplemental device to another dosimeter being used by an employee?

The film badge dosimeter.
The direct reading dosimeter.
The thermoluminescent dosimeter.
The luminescent dosimeter.

Question 67 of 150

67. Question

1 points

Anatomical features that appear as dark areas on the dental film are

Radio-paque.
Radio-lucent
Transparent.
Opaque.

Question 68 of 150

68. Question

1 points

What may not be clear in the panoramic radiography of the TMJ

Periodontal ligament.
Interdental ligament.
Glenoid fossa.
Alveolar bone crest.

Question 69 of 150

69. Question

1 points

In relation to the average setting recommended by the equipment and film manufacturer, the exposure setting for an OBESE patient is:

Adjusted to the next highest kVp or mA setting.
Kept at the average recommended setting
Adjusted to the second highest kVp or mA setting.
Adjusted to the next lowest kVp or mA setting.

Question 70 of 150

70. Question

1 points

If a film is too dark, what is the likely problem in the development?

Temperature is too high.
Temperature is too low.
Depleted chemistry.
Short development.

Question 71 of 150

71. Question

1 points

The terms dose and exposure are sometimes used interchangeably. However, they have different meanings. EXPOSURE means:

Measure of the strength of a radiation field at a certain point
Amount of energy that ionizing radiation imparts into person or material.
How fast radiation is being imparted into a person or material
Biological effect of ionizing radiation.

Question 72 of 150

72. Question

1 points

Which dosimeter becomes ‘zeroed out’ after it has been officially read and documented?

A thermoluminescent dosimeter.
A quartz fiber dosimeter
A film badge dosimeter.
A direct reader dosimeter.

Question 73 of 150

73. Question

1 points

What form of mounting radiographs is most preferred by the American Dental Association (ADA)?

Radial.
Lingual.
Buccal.
Labial.

Question 74 of 150

74. Question

1 points

What type of x-ray is this and what does it show?

Panoramic; extra teeth.
Periapical; missing teeth.
Panoramic; missing teeth. .
Periapical; extra teeth

Question 75 of 150

75. Question

1 points

An area that appears most translucent on dental X-rays is:

The maxillary molars.
The incisors
The pulp cavity.
The mandibular molars.

Question 76 of 150

76. Question

1 points

When is the best time to mount patient films?

Within one week of the patient's visits.
24 hours after processing.
By the end of the business day.
Right after finished processing.

Question 77 of 150

77. Question

1 points

When wearing safety garments, the best way to get an accurate radiation reading on the operator’s monitoring device is

To keep it behind the barrier.
To wear it on the inside of the lead apron.
To wear it on the outside of the protective garment.
To give it to the patient during x-rays.

Question 78 of 150

78. Question

1 points

An overlapping of the proximal surfaces is caused by:

Incorrect vertical angulation of the primary beam.
Film reversal.
PID cutoff.
Incorrect horizontal angulation of the primary beam.

Question 79 of 150

79. Question

1 points

Which intraoral radiograph would you use on a patient who needs oral surgery?

Bitewing.
Bite block.
Occlusal.
Periapical.

Question 80 of 150

80. Question

1 points

Which type of radiograph will help determine whether a crown fits properly?

Bitewing.
Occlusal.
Periapical.
Panoramic.

Question 81 of 150

81. Question

1 points

Each of the following statements describe a cephalometric radiograph except:

It is commonly used by orthodontists.
It contains a soft-tissue outline
It measures changes.
It is used to examine growth patterns.

Question 82 of 150

82. Question

1 points

Processing documentation should not include:

Daily appointment schedule.
Film processing temperature chart.
Developer time and temperature chart.
Processing equipment maintenance chart.

Question 83 of 150

83. Question

1 points

The most commonly used leaded aprons cover what area(s) of the body?

Scalp and neck.
Lower body.
Chest and lap.
Back and shoulders.

Question 84 of 150

84. Question

1 points

When mounting maxillary anterior X-rays, they should be placed with the crowns of the teeth toward:

The top edge of the mount.
The left side of the mount.
The bottom edge of the mount.
The right side of the mount.

Question 85 of 150

85. Question

1 points

If a patient feels uncomfortable about the radiation during an x-ray, they should

Talk to the dentist about the procedure.
Make sure x-rays are absolutely necessary.
Wear all protective gear.
All of the above.

Question 86 of 150

86. Question

1 points

The cumulative dose of occupational exposure for dental personnel should not exceed:

10 mSv per year.
2 0 mSv per year.
50 mSv per year.
100 mSv per year.

Question 87 of 150

87. Question

1 points

If the x-ray tube head moves during the procedure, the patient should

Move it back in place.
Get up, move the head, and tell the operator.
Not touch it, and verbally notify the operator.
Push it away until the operator comes back in the room.

Question 88 of 150

88. Question

1 points

What is true about the patient?

The patient's teeth are all natural and healthy.
The patient's teeth are all dentures.
The patient has root canals.
The patient has a severe overbite.

Question 89 of 150

89. Question

1 points

Patient’s x-rays can be performed with

Digital imaging only.
Conventional film only.
Digital imaging and conventional film.
None of the above.

Question 90 of 150

90. Question

1 points

Only half of a panoramic film is exposed. A MOST LIKELY cause is:

The developer solution was too hot.
The patient moved.
The film was not fixed.
The film was not rinsed properly.

Question 91 of 150

91. Question

1 points

What do cassettes convert x-ray energy to?

Radiation.
Light energy.
Images.
Anomilies.

Question 92 of 150

92. Question

1 points

Intraoral x-rays are used to create ____

Latent image.
Digital image.
Analog image.
Byte.

Question 93 of 150

93. Question

1 points

The appropriate temperature and times for the developer and replenisher are crucial during processing. A particular developer and replenisher for intraoral film requires 4 minutes at 70° F and 3 1/2 minutes at 72° F. The container states that processing should occur at room temperature. What is the range for room temperature in CELSIUS?

20 - 25° C
22 - 26° C
25 - 30° C
15 - 20° C

Question 94 of 150

94. Question

1 points

A patient has a hyper-active thyroid (Grave’s disease). What safety principle should be followed in this case?

ALARA.
ADA.
OSHA.
EPA.

Question 95 of 150

95. Question

1 points

It is recommended that radiographs are mounted with the embossed dots all facing in the same direction according to which organization?

The American Medical Association.
The Environmental Protection Agency
The American Dental Association.
The Center for Disease Control.

Question 96 of 150

96. Question

1 points

Placement of the X-ray film in the fixer before the developer will:

Fog the film.
Cause the film to be black.
Cause the film to be light.
Not affect the film.

Question 97 of 150

97. Question

1 points

How should anterior film be placed for the parallel technique

Horizontally.
Center.
Vertically.
Parallel.

Question 98 of 150

98. Question

1 points

Which of the following is considered a shielding material that can protect the operator from radiation exposure?

Safety goggles.
Hair nets
Lab coats.
Rubber shoes.

Question 99 of 150

99. Question

1 points

Placing film in the mouth in a position that is parallel to both the lower and upper crowns is which technique?

Bisecting,
Bitewing.
PID.
Paralleling.

Question 100 of 150

100. Question

1 points

The lead apron placed on the patient should extend from

The throat to top of the chest.
The neck to center of the stomach.
The neck to past the genital region and have a thyrocervical collar.
The chest to stomach.

Question 101 of 150

101. Question

1 points

In viewing the sharps container, the dental assistant notices that it is puncture resistant, closeable, leak proof, and located far away from the work area. Which of the following is NOT acceptable?

It is puncture resistant.
It is closeable
It is leak proof.
It is located far away from the work area

Question 102 of 150

102. Question

1 points

With regard to infection control, which of the following is an example of the “elimination of a hazard”?

Safety needles.
Hand hygiene
Single-use instruments.
Masks, gloves, aprons.

Question 103 of 150

103. Question

1 points

What level of disinfection kills vegetative microorganisms (even Mycobacterium tuberculosis), fungi and destabilizes most viruses?

Low-intermediate.
Intermediate.
Low.
High.

Question 104 of 150

104. Question

1 points

A patient claims she has been diagnosed with mercurialism. What is mercurialism?

Mercury poisoning.
Nitrous oxide poisoning.
Curing light poisoning.
Latex poisoning

Question 105 of 150

105. Question

1 points

A dental assistant develops contact dermatitis from latex gloves used in the office. The employer should:

Provide non-latex gloves for employees who may be hypersensitive to latex.
Require the assistant to provide at her own expense non-latex gloves.
Re-assign the assistant to a job where she doesn't have to wear gloves.
Encourage the employee to change her gloves more frequently.

Question 106 of 150

106. Question

1 points

OSHA requires that disposable barriers be:

Recycled plastic.
Latex free.
Discarded and replaced between patients.
Discarded and replaced daily.

Question 107 of 150

107. Question

1 points

When storing instruments, newly sterilized items are placed where?

Front.
Center.
Back.
Top.

Question 108 of 150

108. Question

1 points

What will Not prevent exposure to nitrous oxide?

Maintain ventilation.
Aiming waste gas at the ventilator.
Regular inspection of equipment.
Face mask fits properly.

Question 109 of 150

109. Question

1 points

What allergies should patients be screened for relating to protective barriers?

Rubber allergies.
Cotton allergies
Latex allergies.
Soap allergies.

Question 110 of 150

110. Question

1 points

A dental environment needs to be free of _____.

Asepsis.
Infection.
Pathogens.
Aerosol.

Question 111 of 150

111. Question

1 points

When items are sterilized in a labeled bag, the bag is typically labeled using what?

Pencil.
Ball point pen.
Permanent marker.
Non-permanent marker.

Question 112 of 150

112. Question

1 points

The CDC recommends that high-speed handpieces should be flushed for what minimum amount of time in order to get rid of air water?

1 - 2 seconds.
5 - 10 seconds
7 - 9 seconds.
20 -30 seconds.

Question 113 of 150

113. Question

1 points

What needs to be disinfected after the polishing?

Wheel.
Pumice.
Pan.
Wall.

Question 114 of 150

114. Question

1 points

A dental assistant must use the small office steam sterilizer to clean dental equipment. Of the following, which would be the cycle time at a temperature of 250°F.

15 minutes.
25 minutes.
45 minutes.
5 minutes

Question 115 of 150

115. Question

1 points

When is it acceptable to store soiled and clean instruments in the same cabinet?

When the soiled instruments will not be with the clean instruments for more than one hour.
Never
When the soiled instruments will not be with the clean instruments for more than three hours.
When the soiled instruments will not be with the clean instruments for more than five hours.

Question 116 of 150

116. Question

1 points

Disposables are assembled on trays in what area of instrument-processing?

Contaminated.
Packaging.
Sterilization / storage
Delivery.

Question 117 of 150

117. Question

1 points

OSHA requires that portable fire extinguishers be:

Wall-mounted within 50 feet or less of travel distance.
Maintained to ensure proper functioning.
Located in treatment rooms.
Wall-mounted within 50 feet of traveling distance and be maintained for proper functioning.

Question 118 of 150

118. Question

1 points

What is the FIRST routine method for proper hand hygiene when conducting routine dental exams?

Changing gloves.
Alcohol based hand rub.
Wearing gloves without holes.
Hand washing and hand antisepsis.

Question 119 of 150

119. Question

1 points

Environmental sterilants are regulated by the ____

FDA.
CDC.
EPA.
OSHA.

Question 120 of 150

120. Question

1 points

What does the number “1” in the yellow section of the chemical hazard label represent?

Slight flammability hazard.
Minimal health hazard.
Minimal flammability hazard.
Slight reactivity hazard.

Question 121 of 150

121. Question

1 points

Health promotion is:

A combination of educational, social, and environmental actions conducive to the health practices of a population.
The education of a population about health practices.
The social considerations of a population as related to health practices.
The environmental considerations related to the health practices of a population.

Question 122 of 150

122. Question

1 points

Which action can prevent contaminating the surfaces in a dental operatory?

Touching surfaces with gloved hands.
Splattering of blood.
Dispersing of aerosol droplets.
Using rubber dams to prevent spray.

Question 123 of 150

123. Question

1 points

Annual training for dental health care workers should include how to prevent the transmission of bloodborne pathogens, such as:

Influenza.
Tuberculosis.
Hepatitis B.
Staphylococcus aureus.

Question 124 of 150

124. Question

1 points

When using a soap dispenser, when is soap added

Every week.
When half-full
When empty.
Every day.

Question 125 of 150

125. Question

1 points

A dental assistant is using a brush when handwashing. What is true of the brush?

It must not be disposable or autoclavable.
It must only be disposable.
It must only be autoclavable.
It must be autoclavable or disposable.

Question 126 of 150

126. Question

1 points

How many bacteria are commonly transferred from brief contact such as a dental assistant shaking a patient’s hand during introductions?

<100.
100-1000.
>100,000.
>20,000,000

Question 127 of 150

127. Question

1 points

Over gloves are useful in which situation?

Preparing the tray.
Handling chart or other physical object.
Handling the dental hand piece.
When handing off dental tools.

Question 128 of 150

128. Question

1 points

The mucosal surfaces of the eyes, nose, and mouth are affected by which route of infection?

Direct contact.
Indirect contact.
Aerosol.
Droplet.

Question 129 of 150

129. Question

1 points

What is NOT a potentially infectious material?

Saliva.
Blood.
Synovial fluid.
Skin.

Question 130 of 150

130. Question

1 points

What does the number “2” in the yellow section of the chemical hazard label represent?

Moderate reactivity hazard.
Special hazard.
Minimal flammability hazard
Slight health hazard.

Question 131 of 150

131. Question

1 points

Hands have already been scrubbed and are not visibly dirty. What method is acceptable?

Antimicrobial soap.
Non antimicrobial soap.
Nail brush.
Alcohol based rub.

Question 132 of 150

132. Question

1 points

How many links are there in the chain of infection?

2
8
6
4

Question 133 of 150

133. Question

1 points

All dental personnel should be immunized against:

Chickenpox.
Tuberculosis.
HBV.
HIV.

Question 134 of 150

134. Question

1 points

Disposal face masks protect the wearer from:

Dental aerosols and spray.
Tuberculosis.
Toxic fumes.
Chemicals.

Question 135 of 150

135. Question

1 points

When a dental assistant must leave the treatment room and open a drawer during a procedure to retrieve a supply that the dentist needs, he or she must wear:

Sterile gloves.
Utility gloves.
Examination gloves.
Overgloves.

Question 136 of 150

136. Question

1 points

What does the number “2” in the blue section of the chemical hazard label represent?

Extreme flammability hazard.
Moderate health hazard
Slight reactivity hazard.
Serious health hazard.

Question 137 of 150

137. Question

1 points

It is important to understand the label for a hazardous chemical. Blue means:

Flammability.
Health.
Special Hazard.

Question 138 of 150

138. Question

1 points

During the decontamination cycle of reusable dental equipment, which of the following would be done first?

Disinfection.
Inspection.
Packaging.
Cleaning.

Question 139 of 150

139. Question

1 points

Labels attached to containers holding hazardous chemicals:

Are always brown in color.
Must be a specific size.
Must never be removed for any reason.
Must have a plastic covering.

Question 140 of 150

140. Question

1 points

All dental offices are required to have a written Hazard Communication Standards Plan that identifies all chemicals stored in the office and

Where employees can access plan materials and who handles the different portions of the plan.
Where the chemicals are stored.
The location of the plan materials.
Who handles the different portions of the plan.

Question 141 of 150

141. Question

1 points

According to OSHA, ____________ is the process of treating every patient as if they were presumed infectious and proceeding accordingly.

Transmission awareness.
Standard precautions
Disease preparations.
International precautions.

Question 142 of 150

142. Question

1 points

Kay is training her new employees regarding the specific routine the office follows for the sterilization and disinfection of its equipment, which is also known as what?

Pathogenic precautions.
Cleaning procedure.
Standard precautions.
Decontamination processes.

Question 143 of 150

143. Question

1 points

The dental office is using a sterilizer that requires a special solution. Which of the following is the office MOST likely using?

Chemical vapor sterilization.
Dry heat sterilization.
Ethylene oxide sterilization.
None of these.

Question 144 of 150

144. Question

1 points

Disinfectant without tuberculcocidal is Not useful for which microorganism?

Geobacillus.
Staphylococcus aureus
Salmonella.
Pseudomonas

Question 145 of 150

145. Question

1 points

A dental assistant is at the chairside when some of the patient’s blood sprays into her eye. What should she do?

Provide initial first aid only and proceed with work.
Provide initial first aid and document the exposure.
Notify her employer and provide initial first aid
Provide initial first aid, notify her employer, document the exposure, and follow-up with HIV or HBV testing source.

Question 146 of 150

146. Question

1 points

Provide initial first aid, notify her employer, document the exposure, and follow-up with HIV or HBV testing source.

Double glove.
Gloves.
Film barrier.
Sodium hypochlorite.

Question 147 of 150

147. Question

1 points

What is the drawback of liquid sterilization?

There is no biologic testing.
It increases corrosion.
It is not very effective.
There is no storage process

Question 148 of 150

148. Question

1 points

The National Fire Protection Association has designated seven categories for the PPE needed when using various chemicals. What equipment is covered under “D” designation?

Goggles only.
Face shields, gloves, apron
Goggles, gloves, apron.
Gloves only

Question 149 of 150

149. Question

1 points

How long does it take for polyether impressions to set before they can be disinfected?

1 hour.
10 minutes
30 minutes
20 minutes

Question 150 of 150

150. Question

1 points

Which of the following is a barrier that exposes specific teeth?

Dental dam.
Mask.
Bib.
Glove.

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