The loss of posterior teeth may result in excessive force exerted on your remaining teeth while chewing. Fortunately, the use of dental implants and crowns allows you to replace these missing teeth. However, the position of the sinus in the upper posterior areas may be too low for proper placement of dental implants in certain cases.
The simple procedure of sinus augmentation allows the sinus floor to be repositioned, creating enough space to properly place an implant. Various grafting materials are used to encourage quicker bone growth into the area in question, helping to stabilize the dental implant. Filling an empty socket with a patient's own bone material allows grafting to accelerate as the bone grows into the area.
Under certain conditions, an even simpler procedure can be utilized. When possible, the bone remaining under the sinus floor is gently “pushed up,” thus lifting the floor of the “dropped” sinus. Bone replacement materials are then placed beneath this lifted bone. Once again, the bone materials are replaced as your body grow new bone into this area.
Sinus augmentation procedures are highly predictable and safe, with studies reporting over 95% success. Following the sufficient healing of a sinus augmentation procedure over around 6-10 months, implants are placed in a predictable and successful manner. It is important to realize that if the sinus augmentation procedure does not result in enough bone for implant placement, additional bone may be regenerated through a second sinus augmentation procedure at the time of implant placement.