W1 Ergonomics

Question 1

What is a musculoskeletal disorder?

Answer 1

Any i jury to the body that is caused by -
Fast-paced or repetitive movements
Forceful or awkward movements
Poor posture

Question 2

What repetitive movement cause musculoskeletal injuries?

Answer 2

Dental work requires repeated use of arms and hands

Question 3

What forceful or awkward movement cause musculoskeletal injuries?

Answer 3

Periodontal instrumentation involves forceful movements combined with awkward postures. Injuries occur with overuse of small muscles and tight grips

Question 4

Define poor posture that can cause musculoskeletal injuries?

Answer 4

Twisted torso or uneven shoulders for an extended period of time can increase the risk of musculoskeletal injury

Question 5

What are risk factors for musculoskeletal stress?

Answer 5

Fixed working position
Excessive use of small muscles
Tight grips
Repetitive movements
Positioning challenges
Confined working space/equipment limitations

Question 6

PICWhat is Thoracic outlet syndrom?

PIC

Answer 6

A painful disorder of the fingers, hand, and/or write caused by compression of the brachial nerve plexus and vessels

Question 7

What causes thoracic outlet syndrome?

Answer 7

Tilting the head forward
hunching the shoulder forward
Continuously reaching over head

Question 8

PICWhat is Rotator Cuff Tendinitis

Answer 8

A painful inflammation of the muscle tendons in the shoulder region

Question 9

What causes Rotator Cuff Tendinitis?

Answer 9

Holding the elbow above waist level

Holding the upper arm away from the body

Question 10

PICWhat is Pronator Syndrome?

Answer 10

A painful disorder of the wrist caused by compression of the median nerve by the pronator muscle

Question 11

What causes Pronator Syndrome?

Answer 11

Holding the lower arm away from the torso of the body

Question 12

PIC What is Extensor Wad Strain

Answer 12

A painful disorder of the fingers as a result on injury to the extensor muscles

Question 13

What causes Extensor Wad Strain?

Answer 13

Extending the finger independently of each other

Question 14

PIC What is Carpel Tunnel Syndrome?

Answer 14

A painful disorder of the wrist and hand caused by compression of the median nerve in the wrist

Question 15

What causes Carpal Tunnel Syndrome?

Answer 15

Repeatedly bending the hand up, down or from side to side at the wrist, pinch-gripping an instrument without resting the muscles

Question 16

PIC What is Ulnar Nerve Entrapment?

Answer 16

A painful disorder of the lower wrist caused by compression of the ulnar nerve at the wrist

Question 17

What caused Ulna Nerve Entrapment?

Answer 17

Repeatedly bending the hand up, down or from side to side at the wrist. Holding the little finger a full span away from the hand

Question 18

PIC What is Tenosynovitis?

Answer 18

A painful inflammation of the tendons on the side of the wrist and base of the thumb

Question 19

What causes Tensynovitis?

Answer 19

Hand twisting
Forceful gripping
Bending the hand back or to the side

Question 20

PIC What is Tendinitis?

Answer 20

A painful inflamation of the tendons of the wrist

Question 21

What causes tendinitis?

Answer 21

Repeatedly bending the hand up, down or from side to side at the wrist

Question 22

PIC What does Neutral Positioning refer to?

Answer 22

An ideal positioning of the body in a balanced position. Decreases risk of musculoskeletal injury

Question 23

PIC What head position should the patient be in for Maxillary arch?

Answer 23

Chin up position

Question 24

PIC what is the head position for mandibular arch?

Answer 24

Chin down position