Ergonomics Quiz 3 Flashcards Preview

104 > Ergonomics Quiz 3 > Flashcards

Flashcards in Ergonomics Quiz 3 Deck (39):
1

What causes Musculoskeletal Injury

Force, repetition, position, no rest

2

In order for success everything must be in order

Position, Grasp, Mirror, Finger rest, Stroke

3

What's correct positioning of ergonomics

Clinician and Patient position
Dental unit (console/light) & patient relative to clinician
Clinician relate to treatment area
Patient's head relative to treatment area

4

Body Mechanics
Instruments

Use proper instrumentation
Use balanced instruments
Use wide diameter handles with serrations
Use sharp instruments
Use IO/EO fulcrums

5

Body Mechanics
Body

Avoid thumb hypertension
Alternate work positions
Adjust chairs and use lumbar support
Wear magnificiation

6

Body Mechanics
Misc

Wear proper fitting gloves
Minimize drag on hose
Avoid time stress
Eliminate wasted motions

7

What's a safe position for shoulders/forearms?

Parallel to the floor with hips slightly higher than knees

8

What kind of vision do you use for body mechanics?

Indirect vision

9

Body mechanics
Clients

Alternate heavy and light calculus patients
Use selective polishing

10

Body mechanics
Stretching

Stretch periodically
Pay attention to pain and fatigue

11

Body Mechanics
Sitting

Lean forward from hip
Bend neck slightly forward
Feet flat on floor with legs perpendicular to floor
Eyes 14-20 in from mouth
Elbows at side and slightly lower than mouth

12

Common Causes of RSD

Awkward posture
Forceful grasp, mechanical stresses, vibration and cold
Wrist and forearm flexion
Static postures
Stool not adjusted to torso
Torso in wrong position
Elbows held above waist
Poor light postion
Patient chair positioned poorly

13

Thoracic Outlet Syndrome Location

Painful disorder of fingers, hand or wrist

14

Thoracic Outlet Syndrome Cause

Compression of brachial nerve plexus and vessels b/w neck and shoulder

15

Rotator Cuff Tendinitis

Painful inflammation of muscle tendons in shoulder region

16

Pronator Syndrome Location

Painful disorder of wrist and hand

17

Pronator Syndrome Cause

Compression of the median nerve b/w 2 heads of the pronator teres muscle

18

Extensor Wad Strain Location

Painful disorder of the fingers

19

Extensor Wad Strain Cause

Result of injury of the extensor muscles of the thumbs and fingers

20

Carpal Tunnel Syndrome

Painful disorder of the wrist and hand

21

Carpal Tunnel Syndrome cause

Compression of the median nerve w/n the carpal tunnel of the wrist

22

Ulnar Nerve Entrapment Location

Painful disorder of the lower arm and wrist

23

Ulnar Nerve Entrapment cause

Compression of the ulnar nerve of the arm as it passes through the wrist

24

Tenosynovitis

Painful inflammation of fluid filled sheaths that cover the tendons on the side of the wrist and at the base of the thumb.

25

Tendinitis

Painful inflammation of the tendons of the wrist from strain

26

Neutral Neck and Back position

0-20 degree

27

Neutral Upper Arm position

0-20 degree

28

Neutral Forearm Position

60-90 degree (Ideal)
Can go to 100 degree

29

Symptoms of RSD

Pain/Nocturnal Pain
Morning stiffness/numbness
Daytime numbness/tingling
Loss of strength
Cold fingers
Increased fatigue

30

How to reduce risk of RSD

Stretching
Hand exercises
Always think of posiitoning

31

Neutral Hand Position

Tilt of knuckles

32

Societal Increase of RSD

Computers
Operators
Bus Drivers
Dental Healthcare Workers
Occupations w/ forceful repetitive motions

33

Self Responsible for musculoskeletal health

Dynamic Postural Integrity
Physical Fitness
Management and leaving behind stress

34

Positioning

Pt-supine position
Pt head tilt (max vs mand)
Unit is low for max and high for mand
Light is arm's length away
Correct positioning while working

35

Four Basic Clinician Positions Right Handed

8,9,10-11,12 o'clock

36

Mand/Max Post. Facing Forward

9 o'clock

37

Mand/Max Post. Facing away

10-11 o'clock

38

Mand/Max Ant. Towards

8-9 o'clock

39

Mand/Max Ant. Away

11-1 o'clock