Motion Activation Flashcards
What is motion activation?
The act of moving the instrument to produce an instrument stroke against the tooth
What is the purpose of using a finger rest?
To provide a fulcrum supporting the weight of your hand when you move the instrument
What kind of movements should instrumentation strokes be when removing calculus?
Tiny movements
What are the types of motion activation?
Wrist motion activation (rotating hand and wrist as a unit to create an instrument stroke, similar to the action of turning a door knob)
Finger motion activation (
When is wrist activation used?
Used for all calculus removal with hand-activated instruments
Together the hand and wrist create more power to move the instrument
Causes the least amount of fatigue to the muscles of the hand and fingers
What is digital activation used for?
Used primarily for US scaling
Not recommended for hand instruments
What is pivoting?
Swinging motion of the hand and arm carried out by balancing on the fulcrum fingerr
What is the purpose of pivoting?
Pivoting assists the clinician in maintaining adaptation as the working-end moves around the tooth
Pivoting is used principally when moving around a line angle
