Often the fees for simple cases is less when compared to that of complex cases. If there is severe bone loss, bone grafting is done and is allowed to heal before the implants are placed. It normally takes six to eight weeks for restoring a single tooth with dental implant and full replacements of complicated cases may take a little above a year. The fees for restoration with dental implant depends on where you live. I suggest go here and see Dental Implant Cost list http://www.mutludent.com