In a sinus graft bone is added to the upper jaw in the area of the premolar and molar teeth (back teeth).
The purpose of a sinus graft is to ensure that the patient has enough bone material on their upper jaw to support the base of the dental implant(s).
The procedure is necessary because many patients, for a variety of reasons, do not have bone structure in their upper jaw for the implant to be placed and secured.
If a small amount of sinus grafting is required it can be done at the time of implant placement.
More extensive sinus grafting may require referral to an oral surgeon for a procedure under general anaesthetic.