Question 1

What is the purpose of the low-volume (velocity) evacuator for the mandibular arch?&#10;A)To remove large amounts of saliva and fluid from the mouth.&#10;B)To remove small amount of saliva and fluid from the mouth.&#10;C)To retract the tongue during a dental procedure.&#10;D)Both B and C are correct.&#10;E)All of the above

Accepted Answer

Low-volume evacuation not only removes small amounts of saliva and fluid from the oral cavity, but the saliva ejector as an attachment can provide additional tongue retraction during a dental procedure.

Question 2

What is the function of the Isolite?&#10;A)Retract the tongue.&#10;B)Provide light to the working area of the mouth.&#10;C)Evacuate saliva and water from the patient's mouth.&#10;D)All of the above

Accepted Answer

The Isolite system not only retracts the tongue, evacuates fluids, and provides light to the working area, but it serves as a barrier to the airway, protecting the patient from inadvertently aspirating dental material.

Question 3

When should a treatment tablet be added to the unit water bottle?&#10;A)When water looks contaminated&#10;B)Every time the bottle is filled&#10;C)When the bottle is half full&#10;D)Between each patient

Accepted Answer

Bottled water needs to be treated every time the bottle is filled and per the manufacturer's recommendation.

Question 4

What is a rheostat?&#10;A)Adjusts the position of the dental chair.&#10;B)Runs handpieces when depressed.&#10;C)Turns the unit light off and on.&#10;D)None of the above

Accepted Answer

A rheostat is used as a foot-operated regulator for operating the dental handpiece. Chair adjustments and light adjustments are made by hand.

Question 5

Which of the following could be found on the dental assistant delivery system?&#10;A)Computer monitor&#10;B)Air/water syringe&#10;C)Curing light&#10;D)All of the above&#10;E)Only B and C are correct.

Accepted Answer

An air/water syringe and a curing light could be found on the dental assistant's delivery system. The computer monitor would be mounted above the work area or to the side of the unit.

Question 6

What is the purpose of the air/water syringe?&#10;A)Rinse the teeth or mouth with spray (air and water together).&#10;B)Rinse the teeth or mouth with water.&#10;C)To dry the teeth or mouth with air.&#10;D)All of the above&#10;E)Both A and C are correct.

Accepted Answer

The air/water syringe serves to provide water for rinsing the teeth and tissues and air to provide increased visibility and to dry tooth surfaces as needed.

Question 7

What features can be found on an assistant chair?&#10;A)Back support&#10;B)Front support bar&#10;C)An adjustable seat height&#10;D)All of the above&#10;E)Only B and C are correct.

Accepted Answer

One difference between an assistant chair and operator chair is that the assistant chair has a front bar support and lacks a back support.

Question 8

Which statement regarding the evacuator tip for a surgical site or procedure is correct?&#10;A)Inserted into the high-velocity evacuation system.&#10;B)Inserted into the low-velocity evacuation system.&#10;C)Narrows to accommodate the surgical site.&#10;D)Is a saliva ejector.&#10;E)Both A and C are correct.

Accepted Answer

The evacuator tip for a surgical site or procedure is connected or inserted into the high-velocity evacuation system. The tip is narrower to accommodate the surgical site. Low-velocity evacuation is typically not used in a surgical procedure.

Question 9

A(n) _____ evacuates a small amount of fluid, water, and saliva from the oral cavity.&#10;A)air/water syringe&#10;B)high-velocity (volume) surgical&#10;C)high-velocity (volume) evacuation (HVE)&#10;D)low-velocity (volume) evacuation tip/saliva ejector

Accepted Answer

Low-velocity evacuation removes a small amount of fluid, water, and saliva from the oral cavity. Large amounts of fluid and debris are evacuated from the oral cavity with the HVE. The air/water syringe does not remove fluids from the oral cavity. The evacuator tips do not remove debris but are the tips through which the HVE pulls the fluids out of the oral cavity.

Question 10

A(n) _____ evacuates large amounts of fluid and debris from the oral cavity.&#10;A)angled stainless steel evacuator tip&#10;B)low-velocity (volume) evacuation (LVE)&#10;C)high-velocity (volume) evacuation (HVE)&#10;D)high-velocity (volume) surgical evacuation tip

Accepted Answer

Large amounts of fluid and debris are evacuated from the oral cavity with the HVE. Low-velocity evacuation removes a small amount of fluid, water, and saliva from the oral cavity. The evacuator tips do not remove debris but are the tips through which the HVE pulls the fluids out of the oral cavity.

Deck 4: Evacuation Devices, Airwater Syringe Tip, and Dental Unit