Between skull bones, air pockets named the sinuses are located .
When the teeth are lost on rear of the upper jaw, the sinus located above this region expands because of air pressure and causes the bone under that region become thinner. A certain amount of bone volume is needed in order to implement implants to replace lost teeth. The process to increase the amount of the bone by descending the base of sinus membrane is called sinus lifting.
Sinus lifting operations do not cause any harm when performed by an expert and experienced physician . If your doctor concludes that you are not suitable for operation as a result of examination will notify you and will discuss alternative treatment options.

Carefully reached to sinus

Sinus membrane is lifted without damaging

Leading to the formation of bone graft material positioned under the membrane carefully

After healing ; bone formation occurs

Implant are placed in the formed bone

Pieces called abutments are placed on the implant which will hold the crown

Crowns are prepared and placed on the abutments

After treatment, the patient gets completely healthy dentures