1, electric toothbrush can only replace the brush head. This is similar to the replacement of ordinary toothbrushes, about 3 months. If the bristles are in good condition, they can be appropriately extended and generally replaced within half a year!
2. The service life of electric toothbrush is long, and different brands are different. Generally, the electric toothbrushes of big brands such as Philips and Oral B are basically used for 5 or 6 years, and they can be used for longer after being protected;
3, if it's a general electric toothbrush with a miscellaneous brand, some of the quality is too good, and the life span is mostly one or two years. Generally speaking, the life of electric toothbrush is relatively long, mainly because the brush head needs to be replaced after about 3 months!
4. The price of brush head of electric toothbrush is not very expensive. The original price of big brands is about 30 yuan. Of course, if you buy a domestic adaptation, the price will be a few pieces cheaper, about 10!