Question 1

Eyestrain is caused by not focusing for long enough periods during dental procedures.

Accepted Answer

A) True 
 B)False

Question 2

Repetitive motion,overflexion,and overextension of the wrist can significantly increase the risk for:

Accepted Answer

A)  cumulative trauma disorders.
B)  breaking the bone.
C)  arthritis.
D)  both a and bE) A) and C)
F) C) and D) A

Question 3

Optimal operator positioning includes:

Accepted Answer

A)  working from a neutral position.
B)  repositioning the patient as necessary.
C)  both a and b
D)  none of the above.E) C) and D)
F) All of the above

Question 4

During procedures,frequently used items should be:

Accepted Answer

A)  positioned behind the dental assistant on the counter in order of use.
B)  on a separate tray to the side of the assistant.
C)  within a comfortable distance, not above the shoulders.
D)  within a comfortable distance away from the work area, slightly above the shoulder level.E) All of the above
F) B) and D)

Question 5

The risk for cumulative trauma disorders (CTDs) can increase with:

Accepted Answer

A)  standing in one position for extended periods of time.
B)  overflexion and overextension of the wrist.
C)  slouching.
D)  none of the above.E) None of the above
F) A) and D)

Question 6

The full back release involves:

Accepted Answer

A)  drawing the left arm across the chest and moving the head slowly to the right.
B)  dropping the head down slowly while allowing the arms and head to fall between the knees.
C)  placing the hands and knees on a flat surface an arching the back like a cat.
D)  touching your toes and then hyperextending your back and neck.E) A) and D)
F) B) and C)

Question 7

To relieve stress on the back,neck,and shoulders a dental assistant can:

Accepted Answer

A)  periodically get up and walk around.
B)  perform a full back release and head rotations.
C)  perform a shoulder shrug.
D)  do both b and cE) A) and B)
F) A) and C)

Question 8

Ergonomic chairside suggestions include:

Accepted Answer

A)  avoiding prolonged, awkward positions and remaining in one position for extended periods of time.
B)  increasing repetitions and forceful movements.
C)  rearranging items in the operatory for easy use and using muscles to remain balanced for ease of movement.
D)  both a and cE) A) and B)
F) None of the above

Question 9

The ideal working position for a dental assistant is:

Accepted Answer

A)  a neutral position sitting upright with body weight evenly distributed.
B)  standing chairside.
C)  seated, leaning forward supported by the stool arm.
D)  either a or cE) B) and D)
F) A) and D)

Question 10

Periodic stretching of the muscles that support the back,neck,forearms,wrists,and hands will help keep them strong and healthy.

Accepted Answer

A) True 
 B)False

Question 11

Frequent reaching,twisting,and working with the arms in awkward positions can cause all of the following except:

Accepted Answer

A)  sprains.
B)  strains.
C)  stress.
D)  both a and bE) None of the above
F) B) and C)

Question 12

In carpal tunnel syndrome (CTS) ,tendons swell and exert pressure on the:

Accepted Answer

A)  carpal bones.
B)  volar carpal ligament.
C)  median nerve.
D)  synovial sheath.E) A) and D)
F) None of the above

Question 13

Physical challenges faced by dental professionals are the development of:

Accepted Answer

A)  back and joint pain.
B)  neck and shoulder pain and headache.
C)  hand and wrist pain.
D)  all of the above.E) A) and D)
F) A) and C)

Question 14

The number of bones contained in the carpal tunnel is:

Accepted Answer

A)  three.
B)  six.
C)  eight.
D)  twelve.E) B) and D)
F) B) and C)

Question 15

The use of ambidextrous gloves can place excessive tension on the:

Accepted Answer

A)  median nerve.
B)  carpal bones.
C)  synovial sheath.
D)  thenar eminence.E) All of the above
F) None of the above

Question 16

Before beginning any physical exercise to prevent injury and strain,it is a good idea to:

Accepted Answer

A)  make sure that you can endure the daily regimen.
B)  check with your physician that it is safe to perform the exercises.
C)  check with your physician if you experience pain while attempting any movements.
D)  do both b and cE) B) and C)
F) All of the above

Question 17

All the following factors contribute to musculoskeletal disorders (MSDs) except:

Accepted Answer

A)  posture.
B)  repetition and force.
C)  twisting.
D)  both a and bE) None of the above
F) A) and C)

Question 18

Body mechanics for the chairside dental assistant include:

Accepted Answer

A)  tilting the head and leaning forward.
B)  sitting with a straight back, supported by a backrest and placing thighs parallel to the floor.
C)  placing elbows close to body.
D)  both b and cE) None of the above
F) B) and C) D

Question 19

Prevention of carpal tunnel syndrome (CTS) can be accomplished by:

Accepted Answer

A)  warming the muscles and joints of hands by slowly opening and closing hands.
B)  frequently resting the hands.
C)  holding one arm out in front of body with hand extended, then pulling back gently with fingers of other hand.
D)  all of the above.E) B) and C)
F) All of the above D

Question 20

To prevent eyestrain,the dental assistant should:

Accepted Answer

A)  always wear safety glasses.
B)  look up frequently and focus on a point in the distance for about 20 seconds.
C)  focus on the dentist's hands and patient's mouth.
D)  never look at the curing light.E) B) and C)
F) None of the above

Exam 25: Ergonomics

Eyestrain is caused by not focusing for long enough periods during dental procedures.

Correct AnswerverifiedShow Answer

Repetitive motion,overflexion,and overextension of the wrist can significantly increase the risk for:

Correct AnswerverifiedA

Optimal operator positioning includes:

Correct AnswerverifiedShow Answer

During procedures,frequently used items should be:

Correct AnswerverifiedShow Answer

The risk for cumulative trauma disorders (CTDs) can increase with:

Correct AnswerverifiedShow Answer

The full back release involves:

Correct AnswerverifiedShow Answer

To relieve stress on the back,neck,and shoulders a dental assistant can:

Correct AnswerverifiedShow Answer

Ergonomic chairside suggestions include:

Correct AnswerverifiedShow Answer

The ideal working position for a dental assistant is:

Correct AnswerverifiedShow Answer

Periodic stretching of the muscles that support the back,neck,forearms,wrists,and hands will help keep them strong and healthy.

Correct AnswerverifiedShow Answer

Frequent reaching,twisting,and working with the arms in awkward positions can cause all of the following except:

Correct AnswerverifiedShow Answer

In carpal tunnel syndrome (CTS) ,tendons swell and exert pressure on the:

Correct AnswerverifiedShow Answer

Physical challenges faced by dental professionals are the development of:

Correct AnswerverifiedShow Answer

The number of bones contained in the carpal tunnel is:

Correct AnswerverifiedShow Answer

The use of ambidextrous gloves can place excessive tension on the:

Correct AnswerverifiedShow Answer

Before beginning any physical exercise to prevent injury and strain,it is a good idea to:

Correct AnswerverifiedShow Answer

All the following factors contribute to musculoskeletal disorders (MSDs) except:

Correct AnswerverifiedShow Answer

Body mechanics for the chairside dental assistant include:

Correct AnswerverifiedD

Prevention of carpal tunnel syndrome (CTS) can be accomplished by:

Correct AnswerverifiedD

To prevent eyestrain,the dental assistant should:

Correct AnswerverifiedShow Answer

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