Chewing gum regularly can increase saliva secretion, thus better cleaning the mouth and teeth. However, medical experts do not advocate chewing gum as a fashion, especially chewing gum too much and for too long may have adverse effects on health.
First of all, most chewing gum is sweetened with sucrose. When chewing gum, sugar stays in the mouth for a long time, and dental caries-causing bacteria in the mouth will use sucrose to produce acidic substances and corrode teeth.
Secondly, people who have filled their teeth with mercury-containing materials had better not chew gum. Studies have found that chewing gum often destroys the substances used to fill teeth in the mouth. Doctors suggest that the chewing time should not exceed 15 minutes, and people with stomach problems should not chew gum too much.
In addition, chewing gum for a long time, the masticatory muscles are always in a state of tension, and it is possible to develop the habit of grinding teeth at night. In addition, if teenagers chew gum during their physical development, it may cause excessive movement of masseter muscles, stimulate the muscle and bone development of mandibular angle, and finally present a "square Chinese face" in appearance, which will affect women's face shape. So every time you chew gum, you should control it within a quarter of an hour.