Every dental restoration must be polished until it achieves the smooth surface of a natural tooth-lookalike state. This also applies to dental restorations crafted in dental laboratories.
Before delivering the restoration back to the dentist, the laboratory technician ensures it's perfectly polished. Although polishing the restoration is highly effective, dental sandblaster use is vital to achieving the desired results. Moreover, sandblasters not only do improve the restoration aesthetic aspects but also the adhesion strength.
A dental sandblaster is a laboratory machine used to polish indirect restorations. This machine is especially useful in ceramic cases.
The machine consists of a pen-like device that acts as a nozzle. This device possesses a tank that the technician loads with the polishing media. The media within the tank can be either silicone carbide grit, aluminum oxide, or glass beads. Regardless of the media used, the dental sandblaster can improve its effectiveness and provide outstanding results.
The blast media is expelled with high pressure through the device nozzle directly into the restoration.
Most dental sandblasters come integrated with a protective box or cover. In this case, the nozzle is located inside the cover.
The protective cover is perfectly closed and prevents grit from escaping and injuring the laboratory technician. Furthermore, it possesses a clear window on top. The practitioner uses this window to safely see what he is doing.
Also, the box has a pair of holes attached to protection gloves. The practitioner just has to slide the hands through the holes to put on the gloves and grab the sandblaster.
Most dental sandblasters are air driven. They use pressurized air to activate and spray the blaster media. These devices can be connected to the dental unit.
However, the sandblasters with the protective cover feature can be used freely without a பல் அலகு. The device comes with an integrated pedal that allows the practitioner to activate it with the foot.
The dental sandblaster has two main functions:
● பாலிஷ்:
The pressurized air and the grit eliminate tiny superficial imperfections. Therefore, leaving behind a smooth, polished surface.
● Improve adhesion:
The bonding strength is one of the crucial elements to treatment success. However, bonding systems are susceptible to multiple factors, and tiny details can affect their effectiveness.
The dental sandblaster allows the laboratory technician to remove any particles on the ceramic restoration left behind after the casting process. It scours all interference that could be between the tooth and the restoration.
Furthermore, it creates microscopic tears that the bonding agent uses to attach more firmly to the restoration.