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 aesthetic 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 alveolar 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.
