Why is it necessary to replace or save teeth?
Several conditions call for tooth replacement. As teeth crowd together or shift, plaque builds up more easily, leading to decay and gum disease. Also, when teeth shift so that the upper teeth no longer correctly mesh with the lower ones, chewing can be impaired and can create stress on the jaw and other teeth. Shifting can cause the mouth to sink in and the face to change appearance. The lips may thin and straighten, the chin may jut out and upward, and pouches may appear on the side of the jaw.