Sinus Augmentation in the Posterior Maxillary Region: a Case Report of 0mm Bone Height.

After graft reflection, sinus membrane is separated from bone or oral mucosa and then bone graft is inserted in between the two structures.

Procedure is performed in two stages with the purpose of stage one to separate the oral mucosa from the sinus membrane using a small amount of bone graft and stage two as actual sinus augmentation, which is performed similar to that of conventional sinus lift procedure.