Sandblasting is to spray special silicate sand on the tooth surface by using high-pressure airflow to remove the attachments that are not easy to scrape off the tooth surface. These granular salts will melt in the mouth. Sand blasting can instantly and gently clean tea dirt, smoke dirt and food soft dirt attached to teeth, and can clean pits and gaps on the tooth surface that ultrasonic dental scalers can't reach. The teeth sprayed with sand are very smooth, and it is not easy to deposit tartar again. You can combine tooth washing with sand blasting. In Xiamen, it costs hundreds of dollars to do sandblasting and tooth cleaning.