If you have a failed implant go see Dr. Mastrovich. An old implant of mine failed and had a broken screw, which I was told would be nearly impossible to remove. Well I flew out to see Dr. Mastrovich from Dallas, Texas, for a second opinion. The same day, he was able to remove the screw and save the implant. He uses state of the art equipment to include a high powered microscope. If you have a failed implant call his office. He and his staff are outstanding…. Thank you Dr. Mastrovich.