- At the time of chewing gum, the sugar stays in the mouth for a long time, then the bacteria in the oral cavity will convert the sugars into acids that will break down tooth calcium (tooth enamel) causing tooth decay.
Experts recommend choosing gum xylitol instead of sugar, because xylitol has the same taste and nutritive value as sugar, but can not be fermented to be safe for teeth.
- Research results in Switzerland show, often chewing gum can damage tooth fillings. Therefore for someone who uses dental fillings with mercury should not chew gum.
Because chewing gum can decompose the compound of mercury, which can increase the amount of mercury in the blood and urine. Excess of these substances can affect negatively to the brain, central nervous system and kidney.
- Children who chew gum for a long time, will most likely have a habit of gnashing teeth during sleep because the muscles of the mouth in a state of tension, so that can affect the quality of their sleep.
Experts recommend that children not chew gum more than 3-4 times a day and not exceed 10-15 minutes.
- Often chewing gum for teenagers can be risky to have a rectangular shape, because the jaw muscles may be too well trained so that very fast growth.
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