brush your teeth with cold water | scienceinfo.net

Tooth 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.