Ultrasonic scalers Flashcards
What does Amplitude mean for ultra sonic scalers?
Distance the tip moves
What does Frequency mean for ultrasonic scalers?
Speed of movement
There are 3 ways ultrasonic scalers work; Mechanical Vibration, Cavitation and Irrigation.
Explain Mechanical Vibration…
- Electrical energy converted into a high frequency sound-waves
- Sound-waves produce rapid movements
- The vibrations that are caused shattered the deposits
There are 3 ways ultrasonic scalers work; Mechanical Vibration, Cavitation and Irrigation.
Explain Cavitation
- Think water and bubbles - is has a cooling effect
- Water and vibrating tip meet creating bubbles that burst and make energy
- This destroys bacteria, endotoxins, ect…
There are 3 ways ultrasonic scalers work; Mechanical Vibration, Cavitation and Irrigation.
Explain Irrigation
- Water spray reaches into pockets and flushes away debris and endotoxins
- Chlorhexidine can be used
Ultrasonics and pacemakers?
They still can be used but would consult cardiologist
Facts about Magnetostrictive Scalers
- Electrical current produces a magnetic field
- This causes the insert (stack of metal strips) to expand and contact = vibration
- 18,000 to 45,000 cycles per second
- Oval shape motion
- Cavitron scalers!
- Can use ALL SIDES OF TIP
Facts about Piezo-electric scalers
- Electrical current passes over crystals = dimensional change = vibration
- 25,000 to 50,000 cycles per second
- Linear (straight) motion
- Only can use TWO SIDES OF TIP
Implants and ultrasonics?
Cleaned carefully ideally with a Titanium scaler. NO PLASTIC INSTRUMENTS
Where can you use the left ultrasonic scaler? What pattern do you follow?
Start LL8 and go buccally along LLQ to midline then lingually LRQ
Then start at
