Instrument Sharpening
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What are the advantages of sharp instruments? | 1. easier calculus removal 2. improved stroke control 3. reduced number of strokes 4. increased pt. comfort 5. reduced fatigue for the clinician
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| What is the goal of sharpening? | restoring a fine sharp cutting edge
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| What defines a sharp cutting edge? | a fine line formed where the face and lateral surface meet
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| What defines a dull cutting edge? | when metal is worn away from the cutting edge until the face and lateral surface meet at a rounded surface
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| What three components belong to sharp cutting edges? | 1. a line 2. length 3. width
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| The cutting edge is formed by what? | junction of the instrument face and lateral surface
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| What is the internal angle on a universal curet or a sickle scaler? | 70-80 degrees
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| Dull cutting edge is what? | rounded surface
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| What are the visual detections of detecting a dull cutting edge? | will reflect light
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| What are the tactile evaluations performed on an instrument to detect dull or sharpness? | sharp will grab or scratch the surface of the sharpening stick and a dull one will just slide over the surface
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| Where should the instruments face be positioned for correct technique? | parallel to the counter top "avoid spilling the water"
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| Where will the lower shank be when the face is parallel to the counter top? | perpendicular to the desk top
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| What are the three cutting edge sections divided into? | 1. toe 2. middle 3. heel
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| In what order should the three cutting edges be sharpened? | 1. heel-third 2. middle-third 3. toe-third
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| To sharpen the cutting edge in sections, what must be done with the stone? | rotated
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| What is the step by step technique? | 1. grab the instrument 2. position the instrument 3. grab the stone 4. position the stone 5. technique check 6. sharpen- heel third 7. sharpen middle -third 8. sharpen toe- third 9. sharpen the curet toe 10. evaluate sharpness
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| What method creates a strong working end? | removing metal from the lateral surfaces
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Created by:
daisenmurray
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