Ultrasonic washing machine is used to shake the tooth of the tooth.
Disadvantages: not often use, because it is through the ultrasonic vibration to clean teeth, teeth after rough surface becomes invisible to the naked eye, frequent use of harm the teeth will be.
2. The blast cleaning is the use of high pressure air sprayed a (special) salt sand particles to the tooth surface to clean teeth, sandblasting to adhere to the teeth of the dirt, soot, and clean up food soft dirt, sand sprayed with teeth is very bright and clean, and not easy to deposit tartar again.
3. Manual equipment cleaning is the use of clean teeth by medical staff to remove the soft stone from the teeth.