我们餐后咀嚼口香糖,一般是为了清洁牙齿,去除食物残渣的味道,保持口腔气味的清新。如果我们选择的是无糖口香糖,它不但能够清新口气、清洁牙齿,还能起到预防龋齿的作用。人们进食时,口腔中的细菌会与食物发生反应,会产生导致蛀牙的有机酸。唾液可以清洗牙齿上的食 We chew chewing gum after meals, usually to clean the teeth, remove the taste of food residue, to keep the breath of the mouth fresh. If we choose sugar-free chewing gum, it not only fresh breath, clean teeth, but also play a role in the prevention of dental caries. When people eat, the bacteria in the mouth react with the food and produce organic acids that cause tooth decay. Saliva cleans teeth food