Normally our jaws have 14 teeth in each, making it 28 teeth in total. Some people have wisdom teeth that are considered extras. They all serve certain function – Anterior (front) teeth are thin and pointed and are designed to cut into foods and help tear meats or bread, for example. Posterior (back) teeth are bulky and wide and are designed to mash and grind the food. Without the back teeth all of the chewing force shifts to the front teeth and people lose them quicker. Having your missing upper and lower teeth replaced is necessary to restore chewing function to prevent digestion problems as well as the loss of other teeth in your mouth.