Doctor Bei's sonic electric toothbrush is different from the traditional electric brush which uses nylon brush wire. It is the first time that a soft haired brush has been applied to the electric brush. It also has an original patent for simultaneous high and low brushing wires. The layout of brushing wire adapts to Bass tooth-brushing method. It is more suitable for the sensitive and delicate mouth of Chinese people rather than that of Europeans.It has the features of high frequencyand low amplitude to clean teeth in an efficient manner without damaging the user's gums.
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