Advantages and disadvantages of tooth washing

Tooth washing refers to ultrasonic cleaning and regular tooth washing, which can effectively remove calculus, dental plaque and other foreign bodies, maintain the health of periodontal tissue, relieve gingival redness and bleeding, and prevent gingival atrophy. So it's good for cleaning teeth, not bad. The general doctor will also recommend that you wash your teeth once a year, mainly by ultrasound regularly, so don't worry, except