Sinus in Implant: A sinus lift or a sinus augmentation or sinus graft; performed by Oral and Maxillofacial surgeons. Its suitable for patients who want dental implants for missing teeth, but do not have the adequate bone height to secure the dental implant. To obtain an adequate bone in the upper jaw, a sinus lift surgery recommended.
What is a sinus?
A sinus is an air-filled structure within the bones of the face. There are several types of sinuses in the human body, but we’ll focus on the ones located in the face. The sinuses in the face are found on the forehead, cheeks, and nose. Their purpose is to regulate air flow and temperature. They are also important for immune system function. If the sinuses become clogged, they can lead to infection, pain, and even a loss of smell. People who have had to deal with chronic sinus issues know how difficult it can be to manage day to day life.
Zygomatic implant it is very common to see implant going through the sinus. This is perfectly OK !
If you have facility of CBCT; you may get proper dimensions of bone and prevent implant in sinus in most cases. However in some cases if bone resorbs between the sinus and the implant; the implant may land up in the sinus or to get a proper bi cortical support you deliberately go for few mm in the sinus. In most cases there is no problem. If there is any issue of sinus infection repeatedly than you can think of removing the implant from sinus by the window technique. Partially embedded implants in the sinus may be unscrewed and a new shorter implant with 0.5 mm higher diameter can be reinserted. Getting the right torque is important.
Now the question arises what if you do not get the right torque and the implant in sinus is not stable?
The best way to try higher diameter of implants in increments of 0.5 mm and get the right torque. If you feel you do not have enough bone diameter to support; you may expand the bone and condense the bone or you may use a plate usually used by Orthopaedic surgeons or maxillofacial surgeons with multiple holes. You may put the plate such that the end two holes are screwed in the bone and your implant can be in the center hole.
This will give primary stability to your implant. If you require and feel necessary you may do a bone graft or sinus lifting before you screw the plate and insert the implant. Another way is you may put implant in slant direction such that it is in the bone as done in all on 4 technique and the sinus can be prevented.Leave a reply