I ruined some of my perfect never had braces teeth by not taking care of my gums. So far I've lost the bottom middle four. It seems the couple of loose ones on the top may have stabilized, meaning are not getting looser. I opted for a pop in and out denture for those bottom teeth that I only wear when around people who care, as I don't. It is what it is and my teeth are not me. I hope your story and my response help readers.