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EntertainmentTooth loss is 10 years earlier because of an unnecessary habit
Brushing your teeth right after eating, brushing with cold water, flossing with toothpicks ... causes you to lose teeth earlier.The reason why you brush your teeth
Toothpaste is primarily composed of friction and fluoride. According to empirical research by experts, these substances will work best at about 37 degrees C.
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Can carp live 10 years in a tank without feeding?
Why do Italy and Switzerland have to redraw the border?
Japanese bullet train accident-free for 60 years
The world's most crowded apartment building: Can accommodate up to 30,000 people, the view inside is overwhelming
World's oldest wine jar contains cremated human bones
America catches strange signal from 1.3 billion light years away from Earth
Two black holes closest to Earth discovered, of a kind never seen before
Solar sails help spacecraft reach Mars in 26 days
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