1|Page
DHT FINAL EXAM NEWEST 2024 WITH
COMPLETE QUESTIONS AND CORRECT VERIFIED
ANSWERS (DETAILED ANSWERS) ALREADY
GRADED A+ 100% GUARANTEED TO PASS
CONCEPTS!!!
"Muscle memory" is stored in your finger muscles when
you practice instrumentation frequently. During the
imitating stage of psychomotor skill development the
learner should have smooth instrument motions. -
....ANSWER ....✔✔ C. Both statements are 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? - ....ANSWER ....✔✔ . Using digital motion
activation with the instrument
Digital motion activation is produced by flexing the ring
finger to create motion. Digital motion activation is used
for calculus removal with an ultrasonic instrument since
the machine provides the power for the instrumentation
stroke. - ....ANSWER ....✔✔ The first statement is
false; the second statement is true
,2|Page
Each tooth has many surfaces each with its own
orientation. A common misconception is that most teeth
are positioned vertically in the dental arches. -
....ANSWER ....✔✔ Both statements are true
Flying off the tooth at the end of a stroke is caused by
_____. - ....ANSWER ....✔✔ not using enough
pressure on the fulcrum finger
In periodontal instrumentation the fulcrum finger acts as
the _______. - ....ANSWER ....✔✔ pivot that supports
the hand
Instrumentation strokes are usually large movements to
cover as much of the tooth surface as possible. During
motion activation for calculus removal, it is best to keep
the ring finger (fulcrum finger) in a curved, relaxed
position. - ....ANSWER ....✔✔ Both statements are
false
Myelination refers to: - ....ANSWER ....✔✔ The
process of forming a myelin sheath around a nerve to
allow nerve impulses to move more quickly
,3|Page
Quality of instrumentation practice is not as important as
the frequency of practice in acquiring a psychomotor
skill. Repeated instrumentation practice may not
contribute to myelination. - ....ANSWER ....✔✔ Both
statements are false
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. It is easier to
roll the instrument handle if the thumb and index finger
are overlapped on the handle. - ....ANSWER ....✔✔
The first statement is true; the second statement is false
The act of moving the instrument to produce an
instrumentation stroke is termed motion activation. The
act of rotating the hand and wrist as a unit to provide
the power for an instrumentation stroke is called digital
motion activation. - ....ANSWER ....✔✔ The first
statement is true; the second statement is false
The hand pivot is a movement used during
instrumentation to _____. - ....ANSWER ....✔✔
maintain adaptation of the working-end of the
instrument as it moves around the tooth
, 4|Page
When you begin an instrumentation stroke, you should
press down with your fulcrum finger against the tooth.
Instrumentation strokes are tiny movements, you move
the working-end only a few millimeters with each stroke.
- ....ANSWER ....✔✔ Both statements are true
Which of the following is not a recommended
instrumentation technique when removing calculus with a
hand-activated instrument? - ....ANSWER ....✔✔
Moving the instrument by flexing the fingers
Which of the following statements is not true of wrist-
rocking motion activation? - ....ANSWER ....✔✔ The
clinician will experience more muscle fatigue when using
wrist motion activation.
Which of the following statements is true about digital
motion activation? - ....ANSWER ....✔✔ -Accomplished
by flexing the thumb, index, and middle fingers
-Best used with probes, explorers, and ultrasonic
instruments
-May be used to instrument in areas where movement is
restricted
DHT FINAL EXAM NEWEST 2024 WITH
COMPLETE QUESTIONS AND CORRECT VERIFIED
ANSWERS (DETAILED ANSWERS) ALREADY
GRADED A+ 100% GUARANTEED TO PASS
CONCEPTS!!!
"Muscle memory" is stored in your finger muscles when
you practice instrumentation frequently. During the
imitating stage of psychomotor skill development the
learner should have smooth instrument motions. -
....ANSWER ....✔✔ C. Both statements are 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? - ....ANSWER ....✔✔ . Using digital motion
activation with the instrument
Digital motion activation is produced by flexing the ring
finger to create motion. Digital motion activation is used
for calculus removal with an ultrasonic instrument since
the machine provides the power for the instrumentation
stroke. - ....ANSWER ....✔✔ The first statement is
false; the second statement is true
,2|Page
Each tooth has many surfaces each with its own
orientation. A common misconception is that most teeth
are positioned vertically in the dental arches. -
....ANSWER ....✔✔ Both statements are true
Flying off the tooth at the end of a stroke is caused by
_____. - ....ANSWER ....✔✔ not using enough
pressure on the fulcrum finger
In periodontal instrumentation the fulcrum finger acts as
the _______. - ....ANSWER ....✔✔ pivot that supports
the hand
Instrumentation strokes are usually large movements to
cover as much of the tooth surface as possible. During
motion activation for calculus removal, it is best to keep
the ring finger (fulcrum finger) in a curved, relaxed
position. - ....ANSWER ....✔✔ Both statements are
false
Myelination refers to: - ....ANSWER ....✔✔ The
process of forming a myelin sheath around a nerve to
allow nerve impulses to move more quickly
,3|Page
Quality of instrumentation practice is not as important as
the frequency of practice in acquiring a psychomotor
skill. Repeated instrumentation practice may not
contribute to myelination. - ....ANSWER ....✔✔ Both
statements are false
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. It is easier to
roll the instrument handle if the thumb and index finger
are overlapped on the handle. - ....ANSWER ....✔✔
The first statement is true; the second statement is false
The act of moving the instrument to produce an
instrumentation stroke is termed motion activation. The
act of rotating the hand and wrist as a unit to provide
the power for an instrumentation stroke is called digital
motion activation. - ....ANSWER ....✔✔ The first
statement is true; the second statement is false
The hand pivot is a movement used during
instrumentation to _____. - ....ANSWER ....✔✔
maintain adaptation of the working-end of the
instrument as it moves around the tooth
, 4|Page
When you begin an instrumentation stroke, you should
press down with your fulcrum finger against the tooth.
Instrumentation strokes are tiny movements, you move
the working-end only a few millimeters with each stroke.
- ....ANSWER ....✔✔ Both statements are true
Which of the following is not a recommended
instrumentation technique when removing calculus with a
hand-activated instrument? - ....ANSWER ....✔✔
Moving the instrument by flexing the fingers
Which of the following statements is not true of wrist-
rocking motion activation? - ....ANSWER ....✔✔ The
clinician will experience more muscle fatigue when using
wrist motion activation.
Which of the following statements is true about digital
motion activation? - ....ANSWER ....✔✔ -Accomplished
by flexing the thumb, index, and middle fingers
-Best used with probes, explorers, and ultrasonic
instruments
-May be used to instrument in areas where movement is
restricted
