Bone
and Tissue Grafts
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 suitable for placement of dental implants. In
these situations, most patients are not candidates for
placement of dental implants.
We now have the ability to grow bone where 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. The
bone graft procedures are referred to as:
Sinus lift procedure
This procedure involves elevating the sinus membrane
and placing the bone graft onto the sinus floor, allowing
implants to be placed in the back part of the upper
jaw.
Ridge-augmentation
In severe cases the ridge has been reabsorbed and a
bone graft is placed to increase the ridge height and/or
width.
Nerve- repositioning
The inferior aveolar nerve, which gives feeling to the
lower lip and chin, may need to be moved in order to
make room for placement of dental implants to the lower
jaw.
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.
These surgeries are performed in the out-office surgical
suite under IV sedation or general anesthesia. After
discharge, bed rest is recommended for one day and limited
physical activity for one week
