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What is a dental implant sinus bone graft?

Dr. Anthony Sclar
Oral & Maxillofacial Surgery
Bone grafting can repair dental implant sites that have inadequate bone structure due to previous extractions, gum disease or injuries. Because the sinus cavity can be involved at the site of a dental implant in the posterior upper jaw, a special bone grafting procedure called a “sinus lift” is sometimes performed. This procedure consists of the dental implant surgeon entering the sinus and carefully lifting the sinus lining to create a space to accommodate the appropriate sized implant. A bone graft is inserted between the elevated sinus membrane and the floor of the sinus. Keep in mind that the floor of the sinus is the roof of the upper jaw. If enough bone between the upper jaw ridge and the bottom of the sinus is available to stabilize the implant well, sinus augmentations and implant placement can sometimes be performed as a single procedure. If not enough bone is available, the sinus augmentation will have to be performed first, then the graft will have to mature for several months, depending upon the type of graft material used. Once the graft has matured, the implants can be placed.

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