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What is bone augmentation?

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What is bone augmentation?
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For dental implants to be successful, the jawbone must have enough bone to support them. The tooth loss may be caused by periodontal disease, dental caries and infection, injury or trauma, or a developmental defect. If the bone under your gum is not tall enough, not wide enough or both, you will need a procedure to add bone to your jaw before implants can be placed.
Bone augmentation is a term that describes a variety of procedures used to "build" bone so that dental implants can be placed. These procedures typically involve bone grafting. The graft can be your own bone or be processed bone obtained from a cadaver. After grafting, you have to wait several months for the grafted material to fuse with the existing bone. A graft from your own bone transplants bone cells or a block of bone that fuses to the jaw.
Several different procedures can be used for bone augmentation. Your dentist will select one depending on the type, location and number of implants to be used. If you need a bone graft, it is important that you and your dentist discuss all of the options available to you.
After bone augmentation, dentists usually wait four to nine months before placing implants.
In a typical situation, a patient has lost a single tooth and wants to have it replaced with a crown supported by a dental implant. However, the tooth has been missing for several years and there is not enough bone to support the implant. This type of procedure is done in the surgeon's office.
Local anesthesia will be used to numb the area where the bone augmentation is needed well as the area from where bone will be removed. An incision in the gum where the implant will be placed is made to determine how much and what type of bone is needed.
If the bone is taken from the chin, then the surgeon will make a cut in the gum below the lower front teeth to expose the chin bone. A block of bone will be removed from the chin along with any bone marrow. Many dentists fill the spot where the bone was removed with another type of bone-graft material.
The block of bone that was removed from the chin will be anchored in place with small titanium screws. A mixture of your bone marrow and some other bone-graft material may then be placed around the edges of bone block. Finally, the surgeon may place a membrane over the graft and close the incision.
After a bone augmentation procedure, you will be given antibiotics, pain medicine and an antibacterial mouthwash. You will be asked to avoid certain foods. You also will be told how to avoid putting pressure on the area while it heals. If you wear a denture, you may not be able to wear it for a month or longer while the area heals. If you have natural teeth near the bone graft, your dentist may make a temporary removable bridge or denture to help protect the area.
The bone graft will take about six to nine months to heal before dental implants can be placed.






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