Test Bank for Fundamentals of Periodontal Instrumentation &
s0 s0 s0 s0 s0 s0 s0
s0 Advanced Root Instrumentation 8th Edition Gehrig, Sroda,
s0 s0 s0 s0 s0 s0
s0 Saccuzzo | All Modules (1–27) |With Questions And Revised
s0 s0 s0 s0 s0 s0 s0 s0
s0 Correct Answers &Explanations() 100%
s0 s0 s0 s0 s0
s0 Guaranteed Pass ||Complete A+ Guide
s0 s0 s0 s0
Nursestar1stuvia
,MODULE 1: ERGONOMICS AND PERIODONTAL s0 s0 s0 s0
INSTRUMENTATION
s0 s0
30 Multiple Choice Questions
s0 s0 s0
1. What is the primary goal of ergonomics in periodontal instrumentation?
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
A) Increase speed of instrumentation
s0 s0 s0 s0
B) Reduce risk of work-related musculoskeletal disorders
s0 s0 s0 s0 s0 s0
C) Minimize patient discomfort
s0 s0 s0
D) Extend instrument sharpness
s0 s0 s0
Answer: B s0
Explanation: Ergonomics focuses on fitting the job to the worker. In dentistry, proper
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 ergonomics reduces fatigue, strain, and long-term injuries (carpal tunnel, back pain)
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 while maintaining clinical effectiveness. Speed or sharpness are secondary benefits,
s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 not primary goals.
s0 s0
2. Which of the following is a common musculoskeletal disorder associated with
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 poor dental operator posture?
s0 s0 s0
A) Hypertension
s0
B) Carpal tunnel syndrome
s0 s0 s0
C) Dental caries
s0 s0
D) Gingivitis
s0
Answer: B s0
Explanation: Prolonged static postures, repetitive wrist motions, and forceful grips
s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 can compress the median nerve, causing carpal tunnel syndrome. Hypertension and
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 caries are not ergonomic-related MSDs.
s0 s0 s0 s0
3. The clinician’s line of sight should be directed ______ to the treatment area.
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
A) from an oblique angle
s0 s0 s0 s0
,B) perpendicular and direct
s0 s0 s0
C) from below the patient’s chin
s0 s0 s0 s0 s0
D) only through the dental mirror
s0 s0 s0 s0 s0
Answer: B s0
Explanation: Direct, perpendicular line of sight reduces neck twisting and maintains a
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 neutral cervical spine. Over-reliance on mirrors or oblique views increases muscle
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 fatigue.
4. What is the recommended weight shift pattern for a seated right-handed clinician
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 during mandibular right posterior instrumentation?
s0 s0 s0 s0
A) Shift weight to left buttock
s0 s0 s0 s0 s0
B) Shift weight forward onto thighs
s0 s0 s0 s0 s0
C) Maintain equal weight on both buttocks
s0 s0 s0 s0 s0 s0
D) Shift weight to right buttock
s0 s0 s0 s0 s0
Answer: A s0
Explanation: To maintain a balanced, stable position, the clinician shifts weight
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 toward the side opposite the working area. For right posterior, weight shifts left; for
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 left posterior, weight shifts right.
s0 s0 s0 s0
5. The patient’s head position should be adjusted so that the occlusal plane is ______
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 when working on the maxillary arch.
s0 s0 s0 s0 s0
A) parallel to the floor
s0 s0 s0 s0
B) at a 45° angle to the floor
s0 s0 s0 s0 s0 s0 s0
C) vertical to the floor
s0 s0 s0 s0
D) tilted away from the clinician
s0 s0 s0 s0 s0
Answer: A s0
Explanation: For maxillary instrumentation, the occlusal plane should be nearly
s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 parallel to the floor. This allows direct vision and neutral wrist positioning. For
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 mandibular, the plane is slightly lowered. s0 s0 s0 s0 s0
6. Which of the following is NOT a component of the “neutral position” for a seated
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 clinician?
, A) Thighs parallel to floor
s0 s0 s0 s0
B) Feet flat on floor
s0 s0 s0 s0
C) Head tilted 30° toward the patient
s0 s0 s0 s0 s0 s0
D) Forearms parallel to floor
s0 s0 s0 s0
Answer: C s0
Explanation: Neutral position requires head upright (not tilted) with cervical spine in
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 alignment. Head tilting strains neck muscles. Thighs parallel, feet flat, and forearms
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 parallel are correct neutral elements.
s0 s0 s0 s0
7. The clinician’s elbow should be positioned at what angle relative to the torso?
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
A) 0° (tucked close to body)
s0 s0 s0 s0 s0
B) 45°–60° away from torso
s0 s0 s0 s0
C) 90° (straight out to side)
s0 s0 s0 s0 s0
D) 120° (above shoulder height)
s0 s0 s0 s0
Answer: B s0
Explanation: Elbows held approximately 45–60° from the torso allow shoulder
s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 relaxation and efficient forearm movement. Tucked elbows restrict motion; wide
s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 angles strain rotator cuff.
s0 s0 s0
8. When using an indirect vision (mirror), the clinician should primarily move which
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 joint to avoid neck strain?
s0 s0 s0 s0
A) Neck vertebrae
s0 s0
B) Lumbar spine
s0 s0
C) Eyes only
s0 s0
D) Wrist and elbow
s0 s0 s0
Answer: D s0
Explanation: Instead of craning the neck, the clinician should use wrist and elbow
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 movements to adjust the mirror angle, keeping the head in a neutral position.
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
9. A saddle seat stool is preferred for periodontal instrumentation because it:
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
A) Forces a slouched posture
s0 s0 s0 s0
B) Allows the thighs to be at a 90° angle to the torso
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 s0 s0 s0 s0 s0 s0
s0 Advanced Root Instrumentation 8th Edition Gehrig, Sroda,
s0 s0 s0 s0 s0 s0
s0 Saccuzzo | All Modules (1–27) |With Questions And Revised
s0 s0 s0 s0 s0 s0 s0 s0
s0 Correct Answers &Explanations() 100%
s0 s0 s0 s0 s0
s0 Guaranteed Pass ||Complete A+ Guide
s0 s0 s0 s0
Nursestar1stuvia
,MODULE 1: ERGONOMICS AND PERIODONTAL s0 s0 s0 s0
INSTRUMENTATION
s0 s0
30 Multiple Choice Questions
s0 s0 s0
1. What is the primary goal of ergonomics in periodontal instrumentation?
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
A) Increase speed of instrumentation
s0 s0 s0 s0
B) Reduce risk of work-related musculoskeletal disorders
s0 s0 s0 s0 s0 s0
C) Minimize patient discomfort
s0 s0 s0
D) Extend instrument sharpness
s0 s0 s0
Answer: B s0
Explanation: Ergonomics focuses on fitting the job to the worker. In dentistry, proper
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 ergonomics reduces fatigue, strain, and long-term injuries (carpal tunnel, back pain)
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 while maintaining clinical effectiveness. Speed or sharpness are secondary benefits,
s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 not primary goals.
s0 s0
2. Which of the following is a common musculoskeletal disorder associated with
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 poor dental operator posture?
s0 s0 s0
A) Hypertension
s0
B) Carpal tunnel syndrome
s0 s0 s0
C) Dental caries
s0 s0
D) Gingivitis
s0
Answer: B s0
Explanation: Prolonged static postures, repetitive wrist motions, and forceful grips
s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 can compress the median nerve, causing carpal tunnel syndrome. Hypertension and
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 caries are not ergonomic-related MSDs.
s0 s0 s0 s0
3. The clinician’s line of sight should be directed ______ to the treatment area.
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
A) from an oblique angle
s0 s0 s0 s0
,B) perpendicular and direct
s0 s0 s0
C) from below the patient’s chin
s0 s0 s0 s0 s0
D) only through the dental mirror
s0 s0 s0 s0 s0
Answer: B s0
Explanation: Direct, perpendicular line of sight reduces neck twisting and maintains a
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 neutral cervical spine. Over-reliance on mirrors or oblique views increases muscle
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 fatigue.
4. What is the recommended weight shift pattern for a seated right-handed clinician
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 during mandibular right posterior instrumentation?
s0 s0 s0 s0
A) Shift weight to left buttock
s0 s0 s0 s0 s0
B) Shift weight forward onto thighs
s0 s0 s0 s0 s0
C) Maintain equal weight on both buttocks
s0 s0 s0 s0 s0 s0
D) Shift weight to right buttock
s0 s0 s0 s0 s0
Answer: A s0
Explanation: To maintain a balanced, stable position, the clinician shifts weight
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 toward the side opposite the working area. For right posterior, weight shifts left; for
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 left posterior, weight shifts right.
s0 s0 s0 s0
5. The patient’s head position should be adjusted so that the occlusal plane is ______
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 when working on the maxillary arch.
s0 s0 s0 s0 s0
A) parallel to the floor
s0 s0 s0 s0
B) at a 45° angle to the floor
s0 s0 s0 s0 s0 s0 s0
C) vertical to the floor
s0 s0 s0 s0
D) tilted away from the clinician
s0 s0 s0 s0 s0
Answer: A s0
Explanation: For maxillary instrumentation, the occlusal plane should be nearly
s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 parallel to the floor. This allows direct vision and neutral wrist positioning. For
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 mandibular, the plane is slightly lowered. s0 s0 s0 s0 s0
6. Which of the following is NOT a component of the “neutral position” for a seated
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 clinician?
, A) Thighs parallel to floor
s0 s0 s0 s0
B) Feet flat on floor
s0 s0 s0 s0
C) Head tilted 30° toward the patient
s0 s0 s0 s0 s0 s0
D) Forearms parallel to floor
s0 s0 s0 s0
Answer: C s0
Explanation: Neutral position requires head upright (not tilted) with cervical spine in
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 alignment. Head tilting strains neck muscles. Thighs parallel, feet flat, and forearms
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 parallel are correct neutral elements.
s0 s0 s0 s0
7. The clinician’s elbow should be positioned at what angle relative to the torso?
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
A) 0° (tucked close to body)
s0 s0 s0 s0 s0
B) 45°–60° away from torso
s0 s0 s0 s0
C) 90° (straight out to side)
s0 s0 s0 s0 s0
D) 120° (above shoulder height)
s0 s0 s0 s0
Answer: B s0
Explanation: Elbows held approximately 45–60° from the torso allow shoulder
s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 relaxation and efficient forearm movement. Tucked elbows restrict motion; wide
s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 angles strain rotator cuff.
s0 s0 s0
8. When using an indirect vision (mirror), the clinician should primarily move which
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 joint to avoid neck strain?
s0 s0 s0 s0
A) Neck vertebrae
s0 s0
B) Lumbar spine
s0 s0
C) Eyes only
s0 s0
D) Wrist and elbow
s0 s0 s0
Answer: D s0
Explanation: Instead of craning the neck, the clinician should use wrist and elbow
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
s0 movements to adjust the mirror angle, keeping the head in a neutral position.
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
9. A saddle seat stool is preferred for periodontal instrumentation because it:
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
A) Forces a slouched posture
s0 s0 s0 s0
B) Allows the thighs to be at a 90° angle to the torso
s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0 s0
