Bone grafting is used in restoring the area of a missing tooth. People who have been without teeth for a prolonged period of time may not have enough bone left in the necessary locations.
Bone loss can be a result of dental infection, periodontal disease, or trauma. There are various reasons for replacing lost bone and encouraging natural bone growth, and each technique tackles jawbone defects differently.
Reasons that bone grafting might be needed include:
- implant placement
- sinus augmentation
If the upper back teeth have been missing for a long time, the sinuses may enlarge. The sinus area is an air-filled space that would not provide support for a dental implant. In order to place a dental implant a sinus lift / augmentation may be recommended to return the sinus cavity to it’s original position by replacing the bone that has been lost.
- socket preservation (common in implant placement and extraction of 3rd molars)
- ridge augmentation
**After a single tooth extraction, 25% of the supporting bone is lost within in the first year if a bone grafting procedure is not done **