High-frequency electric toothbrushes
High oscillation frequency
— sonic and ultrasonic toothbrushes operate at a high frequency, typically exceeding 40,000 vibrations per minute. It's important to note that all ultrasonic models naturally function at such high speeds, while the mentioned frequency is considered high specifically for sonic toothbrushes.The high speed of work promotes fast and effective cleaning. On the other hand, it is not always desirable: for example, with increased sensitivity of tooth enamel, intense exposure can cause discomfort. Therefore, it is best to buy a brush with this feature after consulting a dentist — or you can choose a model with a mode for sensitive teeth (see "Functions (brushing modes)").
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