cavitron Flashcards
ultrasonic scalers utilize what tech?
utilize rapidly vibrating, water-cooled tips to remove
deposits from tooth surfaces and to debride periodontal pockets
ultrasonic scalers and fatique
Produces less operator wrist fatigue than hand scaling
how does ultrasonic scaling benefit the gingiva?
Benefits the gingiva by removing biofilm & calculus deposits
can ultrasonic scaling be the only scaling used?
no must use with hand instruments
ultrasonic scalers
* frequency compared to sonic?
* Utilizes?
*mechanism?
- Higher frequency than sonic scalers (20-50 kHz)
- Utilizes water lavage that deplaques/washes away debris from within the periodontal pocket
- Cavitation occurs causing bubbles to form and collapse which disrupts the cell walls of harmful bacteria resulting in lysis (cell death)
Piezoelectric
* Stroke direction?
effective sides?
* The most effective portion?
* Requires how much water?
* Can be used on patients with?
Piezoelectric
* Strokes occur in a LINEAR pattern via crystals activated by
ceramic handpiece
* Only the LATERAL sides are effective in the removal of
plaque and calculus
* The most effective portion of the tip is the last 2.4mm
* Requires LESS water to control heat
* Can be used on patients with multiple health issues (i.e.,
Asthma, COPD, pacemakers, etc.)
how is piezo reactivated
- Piezo is reactivated by dimensional changes in crystals
housed within the hand-piece as electricity passes over the
surface of the crystals- results in vibration that produces tip
movement in a linear direction
Magnetostrictive
* AKA?
* freq compared to piezo?
* Stroke pattern?
* Always requires?
* aspects of the tip activated/ effective for biofilm/calculus removal?
* important note of tip
Magnetostrictive
* AKA “Cavitron”
* Operates at a lower frequency than piezo
* Strokes occur in an elliptical pattern via stacks of metal sheets
* Always requires water lavage due to the production of heat
* ALL aspects of the tip are activated and effective for biofilm/calculus removal
* NOTE: do NOT use the direct tip for calculus removal
Magnetostrictive-
contraindications
- According to the American Dental Association, studies have shown some electronic dental devices may interfere
with implanted cardiac devices - Newer cardiac devices are better shielded and less susceptible to interference (<10 years old)
- It is IMPORTANT that you discuss your patient’s cardiac health hx prior to using a
cavitron- if the pacemaker is older, it is likely that it is NOT shielded
How does a
cavitron work?
- Using flat metal strips in a stack or a metal rod
attached to a scaling tip, electrical currents are
supplied to a wire coil in the hand-piece; a magnetic
field is created around the stack or rod transducer
causing it to constrict. An alternating current then
produces an alternating magnetic field that causes the
tip to vibrate. The tip movement is elliptical
tips for the cavitron can be used where
supra and sub g
parts of cavitron insert
Ultrasonic scalers & Dental Implants
- Softip Cavitron Insert- obtain
from Dispensary anytime you
are scaling around an implant - The blue plastic cover is a
one-time use cover
can only be used with 30k machine
Power settings for cavitron
* LOW:
* MEDIUM:
HIGH:
what is adjusted with these?
- LOW: biofilm removal and light subgingival deposits
- MEDIUM: general debridement of biofilm and calculus deposits
*HIGH: removal of heavy, tenacious calculus deposits - be sure to adjust water setting accordingly
How to adapt a cavitron tip
which surfaces used to adapt?
can tip go interprox?
tip movement? direction?
use the lateral surfaces of the tip to adapt to the tooth surface.
The tip can lead into interproximal spaces, but not directly contacting the tooth surface.
Also, ensure the tip is always moving, beginning at the coronal surface toward the apical surfaces.
