Reference Guide
Instruments should be kept sharp and true to their original design. In addition, dental procedures are most effective with sharp instruments.
CUTTING EDGE
FACE
TIP
Instrument Design to Consider when sharpening LATERAL SURFACE BACK
Rounding the Toe of a Curette
CUTTING EDGE
FACE
1. Stabilise the instrument. 2. Place stone at a 45° angle to the face. 3. Use up and down strokes, and rotate the stone around the toe.
TIP
Straight Sickle Scaler
BACK
LATERAL SURFACE
°
TERMINAL SHANK
CUTTING EDGE
FACE
TIP
CUTTING EDGE
BACK
FACE
LATERAL SURFACE
°
TERMINAL SHANK
TIP
CUTTING EDGE
BACK
LATERAL SURFACE
FACE
TIP
°
BACK
Curved Sickle Scaler
LATERAL SURFACE
TERMINAL SHANK
CUTTING EDGE
TERMINAL SHANK
FACE
TOE
CUTTING EDGE °
BACK
LATERAL SURFACE
FACE
Sharpening the Face of Dental Instruments Sharpening the face of periodontal instruments is only recommended for removing a roughened edge. The cutting edge should be restored by reducing the lateral side. Excessive grinding of the face weakens the blade. To sharpen the face of curettes and curved sickles, use a conical or cylindrical stone (SS299, SS2 or SSKC). 1. Stabilise the instrument. 2. Place stone at junction of face and shank. 3. Roll stone across the face, moving toward the tip/toe. 4. Use a few strokes and light, even pressure.
TERMINAL SHANK
°
TIP
CUTTING EDGE
FACE
BACK
TOE
LATERAL SURFACE
BACK
LATERAL SURFACE
°
CUTTING EDGE
Universal Curette TOE
FACE
°
BACK
LATERAL SURFACE
TERMINAL SHANK
CUTTING EDGE
°
FACE
TOE
70°
BACK
LATERAL SURFACE
°
Gracey Curette
CUTTING EDGE
TOE
FACE
°
To sharpen the face of a straight sickle, use a flat stone. 1. Apply stone to entire facial surface. 2. Move the stone across the face using a back/forth motion. 3. Use a few strokes and light, even pressure.
BACK
LATERAL SURFACE
E5
°
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