Dental Implant Surgery
When a tooth is lost and not immediately replaced, the bone reacts to this event by 'shrinking back'. The bone becomes thinner from a width perspective and the bone height is frequently reduced. This process is known as bone resorption. In order to place implants, it is necessary to rebuild the bone width and height through regenerative surgical therapy. Bone grafting of the ridge is almost always required to enable accurate placement of dental implants. The grafting is completed utilizing tissue bank and/or synthetic bone particles combined with collagen membranes. It is a highly predictable procedure.
When a tooth is extracted and an implant is to be placed (either simultaneously or in the future) it is always necessary to complete bone grafting within the residual sockets that are left behind after the roots of the tooth are removed. The shape of the tooth root is always different from the shape of a dental implant and hence there are always residual socket defects (holes) that must be filled in so that there can be excellent contact of the implant to the newly formed bone.
The human skull has several cavities or air spaces called sinuses. When the sinus is enlarged and intrudes on areas where we want to place dental implants, bone or bone growth stimulation material is placed into the sinus. This procedure only affects the maxillary sinuses, which are located just over the molar teeth in the upper jaw. The side of the maxillary sinus is opened and the bottom is raised so it will fill in with bone. Several months later, dental implants can be placed in solid bone.
An "Osteotome Lift" is a surgical procedure that raises the floor of the sinus directly over where the implant is placed. This can be done without actually opening the sinus.
When the extraction of a tooth is required:
- An incision in the gums is made
- The tooth is removed
- The area is stitched up and is allowed to heal
During this time, it is important to think about a tooth replacement option. An extracted tooth leaves an open area in the jaw which, in time, allows the neighboring teeth to drift into the area where the tooth was extracted. This in turn, causes a chain reaction to all the surrounding teeth. Also, if you are considering placing an implant in the future, you should consider asking your dentist to place a bone graft at the time of surgery to preserve the bone width and height.