Nozzles for Oral-B electric toothbrushes come in 7 different types, but to maintain good hygiene you only need to choose one of them. In fact, most of the types of interchangeable tips are just marketing products that are more intended for lovers of fashionable devices than they have any practical sense.
Ultrasonic toothbrushes produce high frequency oscillatory waves (ultrasound), which are transmitted to the bristles of the toothbrush, causing them to oscillate with high frequency. The resulting ultrasonic waves break up the attachment of plaque to the surface of the teeth, and the movements of the bristles contribute to its removal.
An oral cavity irrigator is an apparatus that forms a thin stream of water that, under pressure, flushes interdental spaces from food debris and plaque, as well as periodontal pockets. In different models of irrigators, the jet of water may be pulsating, contain microbubbles of air, or be a regular monojou.
Sound toothbrushes are called so because inside them there is a high-frequency generator that produces sound vibrational waves. Due to this, the bristles on the head of the toothbrush make oscillatory movements. In total, the bristles make about 28-30 thousand oscillatory movements per minute.
The ionic toothbrush belongs by the principle of action - to electric toothbrushes. The fact is that the ionizing mechanism works on a battery built into the toothbrush handle. This can be either a traditional small battery, which we used to see in an electronic clock, or a small solar panel built into the handle of a toothbrush (as in calculators).