Major and minor bone grafting.
Over a period of time, the jawbone associated with missing teeth atrophies or is reabsorbed. This often leaves a condition in which there is poor quality and quantity of bone. We now have the ability to grow and place bone where it is needed. This not only gives us the opportunity to place implants of proper length and width, it also gives us a chance to restore functionality and esthetic appearance. These procedures may be performed separately or together, depending upon the individual's condition. There are several areas of the body which are suitable for attaining bone grafts. In the maxillofacial region, bone grafts can be taken from inside the mouth, in the area of the chin or third molar region or in the upper jaw behind the last tooth. In more extensive situations, a greater quantity of bone can be attained from the hip or the outer aspect of the tibia at the knee. One type of bone graft procedures is the maxillary sinus lift where this involves elevating the sinus membrane and placing the bone graft onto the sinus floor. This allows for implants to be placed in the back of the upper jaw. Another type of bone grafting procedure is called ridge-augmentation where a bone graft is placed to increase the ridge height and width.