G. Mod. 9 Technique-Movement And Orientation To Tooth Surface

Question 1

Stages of psychomotor development

Answer 1

1. Observing
   -mental attention to steps of psychomotor skill
2. Imitating
   -attempted coping of psychomotor skill
3. Practicing
   -attempting psychomotor skill over and over
4. Adapting
   -fine tuning, minor adjustments to perfect skill

Question 2

Muscle memory

Answer 2

Frequently enacted muscle tasks that are stored in brain

Question 3

Myelination

Answer 3

Process of forming myelin sheath around nerve to allow nerve impulses to move more quickly

Question 4

Automaticity

Answer 4

Perform psychomotor skill smoothly easily and without frustration

Question 5

Motion activation

Answer 5

Muscle action used to move working end of an instrument across a tooth surface

Question 6

Instrumentation strokes are ____ movements

Answer 6

Tiny
1-2 mm

Question 7

2 types of motion activation

Answer 7

Wrist rocking

Digital activation

Question 8

Wrist rocking motion

Answer 8

For calculus removal

Hand wrist arm work as unit to rotate to move working end

Less fatigue

Motion like door knob

Question 9

Digital motion
When is it used

Answer 9

Flex thumb index and middle fingers

Used when physical strength not required

Push and pull movements

Probe explorer-assessment, ultrasonic

Question 10

Rolling instrument

Answer 10

Turning handle between thumb and index

Drive finger determines direction

Question 11

Pivoting
When is it most used

Answer 11

Swinging motion, balancing on fulcrum

Tiny movement

Used principally when moving around line angle onto proximal

Question 12

Mandibular roots

Answer 12

Anteriors tilt inward

Premolars more vertical

Mandibular molars tilt outward

Question 13

Orientation of crown surface differs from orientations of

Answer 13

Root surface

Question 14

Fulcrum

Answer 14

Acts as brake to stop movement @ end of stroke