The dentist must perform surgery to fix the "artificial roots" on or above the jawbone. The procedure is done at a local anesthesia dental office. The gums are then fixed on the implant, which implant will remain covered until it fits into the bone. The dentist then unmasks and attaches or attaches the implant. With some implants, the implants and posts are single units placed in the mouth during the initial surgery. Finally, the dentist makes a denture, or crown, that is attached to the implant post.