牙刷或者电动牙刷刷头应每三~四个月更换一次——如果未到时间，刷毛已经磨损或是变形，那么请及时更换。
Invest in a new toothbrush or a replacement head for your electric or battery-operated toothbrush every three to four months - or sooner if the bristles become frayed.
而且出于卫生需要，索纳斯二代变频电动牙刷的刷头都自带一个透明刷头盖，用于日常的防尘！
But for health needs, the brush head Souness two generation of inverter electric toothbrush comes with a transparent brush for daily dust cover!
一种能使刷头随转轴一起转动，并且还可以改变旋转方向的双向旋转式电动牙刷。
The utility model relates to a two-way rotary electric toothbrush. The brush head of the utility model can rotate with a rotating shaft and the rotating direction can be changed.
电动牙刷是由口腔护理专家精心研制成的，其细小刷头和易握手柄，易于操作使用，同时容易清洁牙齿内侧面。
Braun Oral-B electric toothbrush by the oral care experts painstakingly researched and 10% of its small motorized and easy grip handle , easy to operate, easy to clean teeth in the side.
电动牙刷是由口腔护理专家精心研制成的，其细小刷头和易握手柄，易于操作使用，同时容易清洁牙齿内侧面。
Braun Oral-B electric toothbrush by the oral care experts painstakingly researched and 10% of its small motorized and easy grip handle , easy to operate, easy to clean teeth in the side.
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