What Causes Hiccups? And More Tricky Kid Questions
You know how you tend to slip on wet floors? The same thing happens to your gum when it touches your teeth, which are wet with saliva. Also, when you chew, you produce extra saliva, which makes the inside of your mouth even more moist, says Irwin Smigel, D.D.S., the president of the American Society for Dental Aesthetics.