7. Teeth as Tools
Using your teeth to open packages and bottles, to grasp or carry objects, or basically anything except chewing and talking, is detrimental to dental health and can seriously cause damage to your teeth, gums, and jaw.
8. Nail Biting
Besides the job that nail biting does on how your hands appear and how you look with your fingers in your mouth all day, it can also introduce all kinds of bacteria into your mouth.
9. Overnight Bottle
If your baby or toddler is in the habit of putting herself to sleep by nursing a bottle of milk or any beverage that contains naturally occurring or added sugars, she is susceptible to tooth decay as the sugars in the liquid stay on teeth for many hours at a time.
