RecruitingProcedureClosed Sinus Augmentation With a Calcium Phosphosilicate PuttyThe goal of this clinical study is to learn if cone beam computed tomography (CBCT) or 3-dimensional x-ray can help to let the investigator know if dental implant placement can be done after performing closed sinus surgery. The study will look at the structure of your gum where the implant will be placed after performing the surgery using 3-D x-ray and compare that to how the structure of your gum looks 6 months later. The 3-D imaging will happen after standard of care surgery to prepare your gum for an implant and then 6 months later to verify that the site is ready for the implant.