Introduction
Ultrasonic toothbrushes and sonic toothbrushes are often used as synonyms, but have fundamentally different functions. While sonic toothbrushes work by mechanical friction, the application of the ultrasonic toothbrush requires a special toothpaste whose particles are set in motion by the vibrations. But what makes an ultrasonic toothbrush better than a pure rotary toothbrush and for whom is this form of tooth cleaning suitable?
What does the ultrasound do?
Ultrasonic waves are created by oscillations of a crystal. One speaks of ultrasound in an oscillation range from 20kHz to 40kHz. This corresponds to about 1.6 million oscillations per minute.
The oscillations are so fast that particles are moved. The ultrasonic toothbrush requires a special toothpaste, which is set in motion by the sound waves. The vibrations cause micro-bubbles to form in the toothpaste, which burst on the tooth surface and thereby achieve a cleaning effect.
Deposits such as plaque and plaque and the bacteria in them are thus loosened from the tooth hard substances. Even hard plaque and light tartar deposits can be blasted off by the ultrasonic toothbrush. Thus, the impurities remain in the toothpaste and are rinsed out.
The special toothpaste that is used does not contain any abrasive particles that are present in standard toothpastes and have an abrasive effect. If a normal toothpaste were used in combination with an ultrasonic toothbrush, this would have a damaging effect in the long run, as the hard tooth substances are gradually abraded. Only a few models that use ultrasound are commercially available, while there are countless rotary and sonic toothbrushes.
Due to the way the ultrasonic toothbrush works, without any mechanical cleaning ability, the toothbrush only needs to be held from tooth to tooth without making circular or even scrubbing movements. This cleans the hard and soft tissues of the tooth, such as the gums, but still protects them and can provide lasting relief from bleeding gums or inflammation. Toothpaste or also via the electric toothbrush
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