Sharpening Angles Clock Face Positions
Glossary of Terms
SICKLE SCALERS & UNIVERSAL CURETTES
Burnishing: To polish or smooth over a deposit instead of removing it. This occurs during scaling with the use of dull instruments. Dominant/Non-dominant Hand: For right-handers, your dominant hand is your right hand and nondominant is your left hand. For left-handers, your dominant hand is your left hand and nondominant is your right hand. Fulcrum: The finger rest used to stabilize the dominant hand during instrumentation or testing the blade for sharpness. Modified Pen Grasp: The instrument is held with the thumb and index finger placed on opposite sides of the handle. The middle finger is placed on the shank to guide the movement of the blade and the ring finger serves as the fulcrum. Secure Palm Grasp: The instrument is held securely in the palm of the hand with the thumb near the top of the instrument to stabilize the instrument when sharpening. Sludge: The accumulation of metal filings that becomes suspended in the oil on the surface of the sharpening stone. Terminal Shank: The section that extends between the blade and the first angle (or bend) in the shank. Wire Edge: A particle of metal that adheres to the cutting edge after grinding.
• Terminal shank at 12:00 • Top of stone at 3 minutes before 12:00 for left handers
• Terminal shank at 12:00 • Top of stone at 3 minutes after 12:00 for right handers
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GRACEY CURETTES
• Terminal shank at 3 minutes after 12:00 • Top of stone at 3 minutes before 12:00 for left handers
• Terminal shank toward 3 minutes before 12:00 • Top of stone at 3 minutes after 12:00 for right handers
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23 IT’S ABOUT TIME
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