Cut down on acidic drinks and foods.
Rinse your mouth with water right after you eat or drink something acidic.
Use a straw for sodas and fruit juices so they bypass the teeth.
Finish a meal with a glass of milk or a piece of cheese.
Chew sugar-free gum.
Drink more water during the day if you have dry mouth.
Use a soft toothbrush. Don't brush too hard.
Wait at least an hour to brush after you've had acidic foods or drinks.
Use fluoride toothpaste and mouthwash.
Get treatment for conditions like bulimia , alcoholism, or GERD.