So far we have covered the building blocks that are part of routine implant placement. This has included the initial examin-ation and diagnosis, special x-rays such as a CT scan, sedation during surgery and what to expect after the implants have been placed.
However, for some people, bone loss after the removal or loss of teeth leaves them without enough to secure an implant.
In the upper jaw above the back teeth, it is possible to increase the height of bone available by creating new bone in the sinus. This procedure is called a 'sinus augmentation'. A skilled surgeon can deliver very predictable results in this location and without the general success of this technique many patients would be unable to have implants in a part of the mouth where teeth are so commonly missing.
There are many ways in which bone can be added to, however one simple concept is to take a piece of bone from somewhere else and secure it as an 'onlay graft' to a deficient area. The new piece of bone will slowly join to the underlying region and when healed and mature, an implant can be placed in a more favourable position.
More simplier to use a bone replacement material. In the past 15 years, progress in the field of bone replacement materials has been very fast.