This term is actually an incorrect anatomical term. The more proper professional term is subantral graft.
Sub means below and antral means sinus.
This type of bone graft lengthens bone in the upper back jawbone (maxilla). The bone is lengthened below the maxillary sinus and above the bone. At no time does the subantral graft enter your sinus cavity, unless there is a torn sinus membrane that pre-exists.
We are born with a small pea-sized empty space in the upper back jaw – called the maxillary sinus. The maxillary sinus is bilateral, which means it exists on both sides of the upper back jaw. The maxillary sinus increases in size throughout childhood and teen years. Into adulthood, the maxillary sinus expands to the size of a small peach. This expansion destroys the bone of the maxilla around the upper teeth, especially if they are missing. This process of bone destruction is called pneumatization.
Missing teeth equals increased bone loss.
A subantral graft is indicated when the upper back jaw is too short. The subantral graft can provide increased bone length for dental implants and facial support. The subantral graft process is very successful and predictable.
Patient compliance is important with regards to smoking cessation. Smoking during subantral graft healing can make the subantral graft fail due to inadequate blood supply. It is important that you follow your dentist’s recommendations for healing and cleaning your mouth.
You may or may not leave the dental office with teeth. But we have a burning desire to help people leave the office with teeth. The sinus lift is better scientifically known as the subantral graft. The subantral graft can dramatically improve bone support for dental implants and your facial structures.
[box type=”tick”]For any questions regarding sinus lifts, bone grafts, implants, feel free to ask![/box]
All the best-
Dr. Joe Kravitz, DDS, MS
Prosthodontist, Author and Speaker
Maryland, DC, Virginia