Scaling- Instruments Scaling- Instrumente
Why scaling instruments should always be sharp: 1. Sharp instruments allow precision work with little application of force. 2. Blunt instruments polish the dental stone, bruise the soft tissue and require more application of force. What you need for instrument sharpening: 1. Sharpening stones (rough, fine, and round for burr removal) 2. Sharpening oil (prevents excessive heat build-up; preserves the sharpening capacity of the sharpening stone)
3. Test stick (made of acrylic, for sharpness test) 4. Good light (sharp edges do not reflect light) 5. Clamping device (e.g. vise)
What to check after sharpening: 1. Roundness of back surfaces 2. Continuous sharpness of cutting edges 3. Perfect shape of working end (e.g. check against catalog illustration) 4. After several sharpening cycles, verify that the instrument is still strong enough for application. Replace instrument if necessary.
Scaler
Universal curettes
Gracey curettes
20°
20°
45°
280
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