I’m not sure what u are describing as “falling in” So you mean towards the tongue? If you had a panorex image taken, ask them to email that to you, and let’s have a look at it. I’d like to see the quality of the bone, and get some sense of why they are moving. If you haven’t had any extractions done that left spaces for them to move into, they shouldn’t be doing this. Teeth literally stay where they are because they have teeth adjacent and opposing them. Take out one tooth and everything distal to it starts to move/drift towards the midline/forward until over time that space gets much smaller. That can take a couple years to happen and it ultimately creates malocclusion.

Having a retainer made could keep them where they are, but that sounds like something you already have a problem with. If this is about esthetics you can live with it no one sees your mandibular teeth anyway. If it’s about function that is something else.

Brian, stage 4 oral cancer survivor. OCF Founder and Director. The first responsibility of a leader is to define reality. The last is to say thank you. In between, the leader is a servant.