How are Bone Grafts Used in Implant Dentistry?
What is a Bone Graft?
Bone Grafting Procedure
The actual bone grafting procedure is quite straightforward. A dentist will assess the quantity and quality of your bone during the treatment planning stages. It will be at this time that he/she will determine if there is a need for bone grafting. Then your dentist will review the different types of bone grafts with you and decide which will be the most suitable for your individual case.
Once this has been decided the bone graft procedure can be performed. The actual procedure requires the dentist to place bone under the gum tissue at the site where the bone graft is needed. The dentist will then be able to place the bone to be grafted onto the site and then cover it with a membrane for protection. Membranes are often used to help stabilize the bone graft as well as keep the gum tissue from invading the healing bone graft. The gum tissue will grow at a much faster rate than bone, therefore, membranes are used to prevent gum tissue from growing in and displacing the bone graft before it fully matures.This membrane is also used to protect the bone from any germs found in the oral cavity and ensure that the area is perfectly clean to allow the healing process to take place. Finally, the area is closed and the tissue is stitched into place. Bone graft healing time is usually right around 4-6 months. But this can vary from patient to patient. Patients are given a prescription for antibiotics to take following their bone graft. Antibiotic mouthwashes can also be prescribed to preserve the health of the gum covering the bone graft.
On follow up visits the dentist will check on the success of the bone graft by taking x-rays to determine the height and width of the new bone. Once this has been verified as satisfactory, and the site of the bone graft is completely healed, the next stage of the dental implant process can begin.
Dental bone grafts for the purpose of dental implants has a very high success rate. But there is always a possibility that the bone graft will not work as planned, even if your own bone was used. Bone grafts are not rejected by the body like organ transplants. There is still some mystery as to why some bone grafts fail. We do know that certain people (for example, smokers, diabetics, patients with poor dental hygiene) have higher risks of graft failure.
A failed graft will need to be removed. Once healed properly, you and your dentist may choose to place a second graft.
A bone graft gives the implant dentist and patient one more tool to achieve a successful outcome to just about any implant treatment.