Many people deal with having sentive teeth on a daily bases.  Normally when eating or drinking something hot, cold, sweet or acidic. Sensitivity can happen when your tooth enamel start to thin or ware down.  Exposing the underlying root surface dentin.  Recedeing gums can also expose your tooth dentin causing tooth sensitivity.

There are many factors as to why you can ware or thin down your tooth enamel. A few would be drinking Acidic beverages like as sodas, Teeth grinding, Brushing with abrasive toothpaste or brushing incorectly or over brushing more then recommended.

Where as gum disease can cause recedeing gums. Other ways to to expose your tooth dentin would be by a chipped or fractured tooth. With proper dental care you can advoid sensitive teeth.  Talk to your dentist if you currently have sensitive teeth to find out the best treatement plan option for you.