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 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 that 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 may be performed in the outpatient surgical
suite under I.V. sedation or general anesthesia. After
discharge, bed rest is recommended for one day and limited
physical activity for one week.
