现在市场上可以见到品牌繁多的牙刷,那么,根据什么来选择、购买呢?儿童应选择适合自己年龄和口腔大小的牙刷。因为儿童口腔黏膜又嫩又薄,故应选择毛丝细软、回弹性好的牙刷。一般儿童应该使用2～3排、7组左右的牙刷。成人则一般应选用3～4排、10组左右的牙刷。牙龈炎患者平时刷牙易出血,应选择软毛牙刷。现在市场上可以买到保健牙刷,这种牙 Now you can see many brands of toothbrush on the market, then, according to what to choose, buy it? Children should choose their own age and oral toothbrush size. Because children's oral mucosa is tender and thin, it should choose soft hair, good elasticity of the toothbrush. General children should use 2 to 3 rows, 7 groups of toothbrushes. Adults should generally use 3 to 4 rows, 10 groups of toothbrushes. Gingivitis patients usually toothbrush bleeding, should choose soft hair toothbrush. Now you can buy health care toothbrush on the market, this tooth