Instrument Sharpening Flashcards
1
Q
Objectives of instrument sharpening
A
- Restore a sharp cutting edge to the blade
- Preserve the original shape of the blade
2
Q
Benefits of a sharp instrument
A
- Reduce clinician fatigue
- Improve deposit removal with better stroke control
- Save time by reducing number of strokes
- Improve tactile sensitivity
- Improved instrument function
- Minimize patient discomfort
3
Q
Results of using dull instruments
A
- Inefficient deposit removal
- Lower quality work regardless of clinical skills
- Need for increased lateral pressure
- Reduced tactile sensitivity
- Increased operator fatigue:
- Tightened grasp
- More strokes
required
- Tightened grasp
4
Q
Burnished calculus
A
calculus is smoothed by an instrument, but not fully removed
5
Q
Determining Sharpness :
A
- The ‘Plastic Stick’
- Visual inspection
6
Q
When to Replace the instrument:
A
- When original shape of instrument is altered
- strength and integrity of the instrument are compromised
- Mark with red tape
7
Q
Types of Sharpening Stones :
A
- Arkansas Stone- (fine)
- India Stone- (fine or medium)
- Ceramic Stone- (fine or medium)
8
Q
India or I Stones:
A
- Synthetic Stone
- Available in a variety of shapes and sizes
- Fine, medium and coarse grit
- Can be lubricated with oil or water
8
Q
Arkansas Stone:
A
- Natural stone
- Fine grit
- Needs oiling for lubrication
Availability: - Flat
- Wedged grooved conical
9
Q
Ceramic Stones:
A
- Synthetic stone
- Available in single or dual grit
- Oil not needed
- Can be used dry or with water
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