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WorksheetsCh 20 (6)
Total questions: 29
Worksheet time: 15mins
If the dentist is unhappy with the way that the assistant is passing instruments, the dentist should:
tell the assistant how they want it passed and provide a demonstration
simply tell the assistant what they should do to pass instruments more appropriately
use body language to indicate that the assistant should
discuss the matter with the assistant after the patient has left
To prevent injury, you should keep your feet together when lifting a heavy object.
True
False
When lifting heavy objects, you should lift with your (a) .
back
legs
arms
core
The operator uses the (a) to obtain a finger rest while using an instrument in a patient's mouth.
index and middle fingers
thumb and pinkie finger
ring and pinkie fingers
thumb and index finger
Indicate whether the statement is true or false. 1. Any time the operator passes an instrument back to the assistant with debris on the working end, the assistant should have a gauze square ready to clean it.
True
False
The instrument grasp shown in this image is the _______ grasp.
palm
pen
palm-thumb
reverse palm-thumb
Indicate whether the statement is true or false. 3. The signal for the instrument exchange comes from the operator raising the handle slightly from the operative site while maintaining a finger rest.
True
False
Indicate whether the statement is true or false. 4. When the operator establishes a finger rest, they use it as a fulcrum for stabilization while working with the hand instrument.
True
False
The assistant should sit
at the same level as the operator
a few inches higher than the operator
a few inches lower than the operator
at any height that feels comfortable
Indicate whether the statement is true or false. 6. To pass the air/water syringe, the assistant holds the end of the syringe covering the nozzle and tip with the palm of the hand.
True
False
Indicate whether the statement is true or false. 7. Positioning the patient in the supine position helps the operator and assistant to utilize proper body mechanics as they work.
True
False
Indicate whether the statement is true or false. When the operator is right-handed, the operator’s zone extends from 12:00–5:00.
True
False
When the operator is properly positioned on their stool, their ________.
knees point straight ahead
entire back presses against the backrest
thighs are parallel to the floor
heels are slightly elevated
Which transfer zone is located over the patient’s chest?
Zone A
Zone C
Zone D
Zone B
Which part of the body will an instrument pass over when it is transferred through Zone A?
Forehead
Abdomen
Mouth
Top of the head
Indicate whether the statement is true or false. 12. Most instrument transfers occur in Zone B.
True
False
Repeating motions frequently for long periods of time can result in _________
arthritis
bone spurs
osteoporosis
muscle strain
If the operator is right-handed and the assistant is on the left, the assistant should be positioned between
5:00–7:00
2:00–4:00
12:00–2:00
10:00–12:00
Which transfer zone is located behind the patient?
Zone A
Zone D
Zone B
Zone C
Which classification of motion is a dental assistant using when mixing materials on the tray?
Class III
Class II
Class V
Class I
The operator should rely on using mostly ________ motions.
Class I, II, and III
Class III, IV, and V
Class I, III, and V
Class II, III, and IV
If the dentist is unhappy with the way that the assistant is passing instruments, the dentist should
tell the assistant how they want it passed and provide a demonstration
simply tell the assistant what they should do to pass instruments more appropriately
use body language to indicate that the assistant should
discuss the matter with the assistant after the patient has left
To prevent injury, you should keep your feet together when lifting a heavy object.
True
False
When lifting heavy objects, you should lift with your (a) .
arms
back
legs
shoulders
The operator uses the (a) to obtain a finger rest while using an instrument in a patient's mouth.
index and middle fingers
thumb and pinkie finger
ring and pinkie fingers
thumb and index finger
The instrument grasp shown in this image is the (a) grasp.
pen
palm–thumb
modified pen
palm
Modifications are required of both the assistant and the operator when transferring scissors.
True
False
What instrument grasp is shown here?
Reverse palm–thumb grasp
Modified pen grasp
Palm–thumb grasp
Palm grasp
Where do musculoskeletal disorders frequently occur in dental assistants?
Lower legs
Upper neck
Lower back
Knees
