Luckily my one implant that I am having is going well (or at least my periodontist says so). I have always had fairly good teeth and have been much better at taking care of them. Unfortunately my regular dentist does try to push a small number of cosmetic dental procedures, e.g., straightening my bottom teeth. She has not really told my exactly WHY it has to be done. I continue to just say "NO." If it was because my mouth was being shifted or my bottom teeth moving one way or the other of course I might consider. But at this age I do not need to look "pretty." The implant I am having because the tooth fractured and it had to come out. An implant was a good replacement (or at least I am hoping it will be). Say your prayers.