Chewing gum, oral sprays and mouthwashes are among the best-selling products on the foreign market. As oral healthcare products that assist in brushing teeth to promote oral health, they have the following commonalities. “Fresh breath” is the effect that many oral health products have. Chewing gums come in a variety of aromatic flavors and have the effect of reducing bad breath, especially chewing gums with added sugar substitutes such as xylitol or sorbitol, which have a sweetness similar to that of sucrose and produce a cool sensation due to a cooling effect when dissolved. Health-care oral sprays used more abroad, the domestic market has not been popularized, some contain mint, plum, lemon, etc., to clear the mouth odor, fresh and crisp effect. In addition, the health care class containing aromatics mouthwash also has a similar effect. These several oral health products, the market supply is the most gum, followed by mouthwash, mouth spray is still little. In addition to the above common points, they also have their own characteristics according to their different dosage forms. Chewing gum can be more effective in the prevention of dental caries, because the chewing action can stimulate the secretion of saliva, so that the flow rate and flow are significantly increased, saliva in the oral cavity of the continuous flow of the tooth surface has a mechanical scouring effect, especially in the postprandial chewing gum, you can accelerate the removal of food debris; chewing so that the flow rate of saliva increases, but also to correspondingly enhance the buffering capacity of saliva, reduce the plaque acid production on the tooth damage to the teeth by acid production from plaque. However, some people also proposed that the traditional chewing gum in the sucrose is also one of the causes of dental caries, so it is not conducive to the prevention of dental caries, therefore, we advocate the consumption of sugar-free chewing gum, xylitol and other sugar substitutes will not be used by the bacterial production of acid, but also inhibit the growth of some caries-causing bacteria and aggregation of caries-causing bacteria, is conducive to dental health, the xylitol and other sugar substitutes has become a lot of food additives. Of course, some precautions in the consumption of chewing gum fashion: do not chew gum on an empty stomach, otherwise it is easy to trigger dizziness, nausea and other adverse reactions; do not cry and laugh when chewing, in order to prevent choking into the trachea; suffering from colds, coughing, do not use, due to the accumulation of phlegm in the chewing gum, is not conducive to health. Oral sprays are portable, easy to use, will not produce waste; and in the air to form a mist into the oral cavity, can make drug-based sprays act to some other agents of drugs are not easy to reach the parts of the body, such as the palate, the pharynx and so on. Mouthwash is mostly used in the family, but it is necessary to choose the appropriate method of use and suitable people according to the different types.