Скачать или смотреть Surgical: Sinus Lift with Implants

Bone that is not stimulated due to missing teeth shrinks and is reabsorbed over time. A sinus lift is carried out to increase the height of the upper jaw bone, to allow for the placement of implants. After an anesthetic has been applied, the maxillary sinus is accessed from inside the mouth. Dental instruments called osteotomes are used to create small holes in the bone. Various different sized osteotomes are then used to gently lift the membrane which covers the sinus. This membrane is very delicate so it is moved carefully to prevent it from being ripped or pierced which would require stitching. When sufficient clearance has been achieved, bone graft material is inserted into the space which has been created. After three to six months the bone graft will integrate with the natural bone leaving a thicker layer of bone between the mouth and the sinus. When the jaw bone has fully healed, it is prepared for an implant using a number of drills to create a socket which is the correct size for the implant. Threads are then cut in the socket and the implant is inserted into the jaw bone. Next an abutment is placed on top of the implant and secured using a screw. Finally the dental crown is fitted, adjusted and cemented over the abutment. The same procedure is repeated for additional implants.