AquaCare AS90000, Руководство по установке и эксплуатации

Страница: 28 / 44

28
Treatments
CAVITY PREPARATION
Settings:
Media - 53 micron Aluminium Oxide (red).
Nozzle - 0.6mm diameter.
Power - 4-5 bar.
Media Flow - Slightly above midway position.
The procedure for the preparation of a cavity with the AquaCare will depend on the size
of the cavity and the extent and type of caries.
For small cavities, the cutting nozzle should be held at an angle of between 35 degrees
and 45 degrees to the surface being abraded, and about 2mm or 3mm from the
surface.
The best approach is to use a slow circular motion over the affected area until sound
tooth structure is revealed. The tooth is now ready to be filled in the normal way.
For larger cavities, a combination of the AquaCare and a rotary instrument may be
of benefit. This is because fluid abrasion is a technique designed to produce a very
conservative cut with a working area of less than 2mm diameter. Finally, the surface of
the cavity should then be finished using the AquaCare to ensure a suitable key for the
bonding agent.
NOTE: Fluid abrasion is not a suitable technique for shaping undercuts for amalgam
restorations. Traditional rotary instruments should be used for this application.
AquaCare: Operation
Angle 35-45°. Approx. 2-3 mm
away from the surface.