Bluestone Trials

Sinus lift study

Do you need a sinus lift before dental implants?
Status: Completed.

If you desire dental implants, but do not have sufficient bone for the procedure, you may be eligible to participate in this research study at no cost to you. The purpose of this study is to compare the effectiveness of two materials for producing vital bone 4 to 5 months following sinus graft surgery. 


The goal of this procedure is to generate bone formation in the posterior (back) region of the upper jaw.  This bone is being produced to prove for future placement of dental implants to support replacement teeth. 


Study Details: 


Qualified subjects will not receive implants as a part of this research study; participants only receive sinus grafts (with no costs) as part of the research procedure.


This study will be conducted at the NYU Bluestone Center for Clinical Research and requires that you be willing to comply with study procedures. This study consists of approximately 6-11 visits at our study site, over an 8 month period.


To qualify for this study, you need to be 18 years of age or older and receive an oral screening by the study investigators in addition to other study specific eligibility requirements. Eligible subjects will be required to have a sinus graft surgery on both sides of the maxilla (upper jaw) performed. 


Study Background:


Sinuses are like empty rooms that have nothing at all in them. The maxillary sinuses are behind your cheeks and on top of the upper teeth.  Some of the roots of the natural upper teeth extend up into the maxillary (upper) sinuses.  When these upper teeth are removed, there is often just an egg shell thin wall of bone separating the maxillary (upper) sinus and the mouth. 

When the sinus wall is very thin, dental implants cannot be placed because there is not enough bone.  A sinus graft or sinus lift graft surgery allows the dental implant surgeon to enter the sinus from its side above where the upper teeth used to be.  The sinus membrane is then lifted upward and donor bone is inserted into the floor of the sinus.  Remember, the floor of the sinus is the roof of the upper jaw.  After several months of healing, the bone becomes part of your jaw and dental implants can be inserted and stabilized in this new sinus bone.