When teeth are lost significant bone loss over time can occur in the sites due to a lack of bone over top of vital structures such as nerves running through the lower jaw.

The ability to place a dental implant in these areas becomes a real challenge when there is tooth loss. In the upper jaw bone loss can occur under the sinus, this loss of bone prohibits the placement of an implant; without the aid of a bone graft sometimes the tooth is infected before it is removed and that infection can also result in a loss of bone.