Saw two other oral surgeon who wanted to take bone from my hip and put into my sinus for implants. Dr. Bohannan used a new material (some protein) that tells the body to make bone. It worked great, I didn't have to have any bone taken from anywhere and six months later my implants went in. 4 months after that I had teeth. It took a long time, but I was told it would take a year. Job well done and my hip thanks him.