FUNDAMENTALS OF PERIODONTAL
INSTRUMENTATION, MODULE
1(QUESTIONS AND ANSWERS 2026
NEW EDITION)
What is ergonomics? - ANS -A discipline focused on making products and tasks
comfortable and efficient for the user.
What is the musculoskeletal disorder (MDS)? - ANS -is a condition where parts of
the musculoskeletal system--muscles, tendons, nerves--are injured over time.
What is the prevalence of MDS range among dental professionals? - ANS -
Between 64% and 93%
What is the caused of MSDs among periodontist and dental hygienist? - ANS -
Include excessive use of small hand muscles, forceful repetitive motion while
,maintaining muscles in the same position during application of force, tight grip,
and a fixed work position.
What is posture? - ANS -is a term for the position of various parts of the body
during an activity.
what is the ideal or neutral posture? - ANS -means that the joint is being used
near the middle of its full range of motion.
what is the most common awkward posture in dental hygienist? - ANS -wrist
flexion, which results in stress to neurovascular structures and ligaments and
diminish grip strength.
Ergonomic hazards for dental hygienist? - ANS -Awkward posture, static posture,
and repetitive motions are combined with forceful movements.
, Static posture - ANS -Maintaining the body in one position for extended periods of
time.
prolonged static posture - ANS -Tense muscles compress the blood vessels and
decreasing the oxygen and energy supply to muscles. Waste products from the
muscles accumulate causing muscle fatigue and eventually pain.
What is a force? - ANS -Refers to the amount of effort created by the muscles, as
well, as the amount of pressure placed on a body part.
repetitive tasks - ANS -A task involving the same fundamental movement for more
than 50% of the work cycle.
musculoskeletal problems common in dental hygienist? - ANS -Thoracic outlet
syndrome, rotator cuff tendinitis, pronator syndrome, extensor ward strain, carpal
tunnel syndrome(CTS), ulnar nerve entrapment, tenosynovitis, tendinitis.
INSTRUMENTATION, MODULE
1(QUESTIONS AND ANSWERS 2026
NEW EDITION)
What is ergonomics? - ANS -A discipline focused on making products and tasks
comfortable and efficient for the user.
What is the musculoskeletal disorder (MDS)? - ANS -is a condition where parts of
the musculoskeletal system--muscles, tendons, nerves--are injured over time.
What is the prevalence of MDS range among dental professionals? - ANS -
Between 64% and 93%
What is the caused of MSDs among periodontist and dental hygienist? - ANS -
Include excessive use of small hand muscles, forceful repetitive motion while
,maintaining muscles in the same position during application of force, tight grip,
and a fixed work position.
What is posture? - ANS -is a term for the position of various parts of the body
during an activity.
what is the ideal or neutral posture? - ANS -means that the joint is being used
near the middle of its full range of motion.
what is the most common awkward posture in dental hygienist? - ANS -wrist
flexion, which results in stress to neurovascular structures and ligaments and
diminish grip strength.
Ergonomic hazards for dental hygienist? - ANS -Awkward posture, static posture,
and repetitive motions are combined with forceful movements.
, Static posture - ANS -Maintaining the body in one position for extended periods of
time.
prolonged static posture - ANS -Tense muscles compress the blood vessels and
decreasing the oxygen and energy supply to muscles. Waste products from the
muscles accumulate causing muscle fatigue and eventually pain.
What is a force? - ANS -Refers to the amount of effort created by the muscles, as
well, as the amount of pressure placed on a body part.
repetitive tasks - ANS -A task involving the same fundamental movement for more
than 50% of the work cycle.
musculoskeletal problems common in dental hygienist? - ANS -Thoracic outlet
syndrome, rotator cuff tendinitis, pronator syndrome, extensor ward strain, carpal
tunnel syndrome(CTS), ulnar nerve entrapment, tenosynovitis, tendinitis.
