An ultrasonic toothbrush cleanses the teeth and gums using vibration. This vibration helps destroy bacteria and plaque down to a depth of around 5mm which also helps to ward off the buildup of biofilm. The vibrations are gentle and therefore do not cause the gums to bleed when brushing.
Ultrasonic brushes can produce sound waves, vibrating water molecules in your mouth for a more effective clean. To gauge your brush’s power, check how many brush strokes a minute the toothbrush offers compared with the most powerful one on the market. An ultrasonic toothbrush should produce 30,000 to 40,000 brush strokes a minute, according to site Electric Toothbrush Reviews. In comparison, normal electric toothbrushes only offer 3,000 to 7,500 brushstrokes a minute.
Other features to look out for include a built-in two minute timer to tell you when your session is up, a UV sanitizer that kills any bacteria which may grow on your brush head when it is not in use, and a pressure sensor to prevent you from brushing too hard. In addition, when choosing a sonic toothbrush you should ask yourself who it’s for. For children, a smaller version is preferable, and some brushes have been designed especially for kids.