Ultrasonic tooth cleaners are devices that use high-frequency sound waves to remove plaque and tartar from teeth. They are often used by dentists as part of a regular dental cleaning. Ultrasonic tooth cleaners are also available for home use, but they are not as powerful as the ones used by dentists.
There is some debate about whether or not ultrasonic tooth cleaners are effective. Some studies have shown that they can be effective in removing plaque and tartar, while other studies have shown that they are no more effective than traditional toothbrushes. However, ultrasonic tooth cleaners are generally considered to be safe and gentle, and they may be a good option for people who have difficulty brushing their teeth effectively.