FOPI 9
A. The act of moving the instrument to produce an instrumentation stroke is termed motion
activation. B. The at of rotation the hand an wrist as a unit to provide the power for an
instrumentation stroke is called digital motion. - ✔✔ correct answer first statement is true; second is
false
A classmate complains of muscle pain in his fingers after a clinic session in which he was removing
calculus deposits with a hand-activated instrument. Which of the following techniques is the most
likely cause of his muscle strain? - ✔✔ correct answer using digital motion activation with the
instrument
A. Instrumentation strokes are usually large movements to cover as much of the tooth surface as
possible. B. During motion activation for calculus removal, it is best to keep the ring finger (fulcrum
finger) in a curved, relaxed position. - ✔✔ correct answer both statements are false
A. Rolling the instrument handle between the thumb and the index finger aids the clinician in
maintaining adaptation of the working-end to the tooth surface. B. It is easier to roll the instrument
handle if the thumb and index finger are overlapped on the handle. - ✔✔ correct answer first
statement is true; second is false
A. Digital motion activation is produced by flexing the ring finger to create motion. B. Digital motion
activation is used for calculus removal with an ultrasonic instrument since the machine provides the
power for the instrumentation stroke. - ✔✔ correct answer first statement is false; second is true
A. When you begin an instrumentation stroke, you should press down with your fulcrum finger
against the tooth. B. Instrumentation strokes are tiny movements, you move the working-end only a
few millimeters with each stroke. - ✔✔ correct answer both statements are true
Which of the following statements are not true of wrist-rocking motion activation? - ✔✔ correct
answer the clinician will experience more muscle fatigue when using wrist motion activation
Which of the following is not a recommended instrumentation technique when removing calculus
with a hand-activated instrument? - ✔✔ correct answer moving the instrument by flexing the fingers
Flying off the tooth at the end of a stroke is caused by ______. - ✔✔ correct answer not using
enough pressure on the fulcrum finger
A. The act of moving the instrument to produce an instrumentation stroke is termed motion
activation. B. The at of rotation the hand an wrist as a unit to provide the power for an
instrumentation stroke is called digital motion. - ✔✔ correct answer first statement is true; second is
false
A classmate complains of muscle pain in his fingers after a clinic session in which he was removing
calculus deposits with a hand-activated instrument. Which of the following techniques is the most
likely cause of his muscle strain? - ✔✔ correct answer using digital motion activation with the
instrument
A. Instrumentation strokes are usually large movements to cover as much of the tooth surface as
possible. B. During motion activation for calculus removal, it is best to keep the ring finger (fulcrum
finger) in a curved, relaxed position. - ✔✔ correct answer both statements are false
A. Rolling the instrument handle between the thumb and the index finger aids the clinician in
maintaining adaptation of the working-end to the tooth surface. B. It is easier to roll the instrument
handle if the thumb and index finger are overlapped on the handle. - ✔✔ correct answer first
statement is true; second is false
A. Digital motion activation is produced by flexing the ring finger to create motion. B. Digital motion
activation is used for calculus removal with an ultrasonic instrument since the machine provides the
power for the instrumentation stroke. - ✔✔ correct answer first statement is false; second is true
A. When you begin an instrumentation stroke, you should press down with your fulcrum finger
against the tooth. B. Instrumentation strokes are tiny movements, you move the working-end only a
few millimeters with each stroke. - ✔✔ correct answer both statements are true
Which of the following statements are not true of wrist-rocking motion activation? - ✔✔ correct
answer the clinician will experience more muscle fatigue when using wrist motion activation
Which of the following is not a recommended instrumentation technique when removing calculus
with a hand-activated instrument? - ✔✔ correct answer moving the instrument by flexing the fingers
Flying off the tooth at the end of a stroke is caused by ______. - ✔✔ correct answer not using
enough pressure on the fulcrum finger
