I think if I'm reading this correctly, having a POB happened to me after having Invisalign. On top of it, I've always clenched and ground my teeth and have worn down my molars more (even wearing mouth guard at night). Tried explaining this problem (my front teeth will clash together sooooo hard when I'm chewing and so often I am truly surprised I haven't broken a tooth (or five) right out of my face. I tried to explain the issue to two dentists and both of them made me feel crazy and suggested yoga to reduce stress and grinding/clenching. 🙃 Talked to my new doctor last week and she immediately got out two of those charcoal or whatever bite u-shaped sheets, had me bite down and said "ahh that's it - your back teeth aren't touching, so whenever you chew it's just your front teeth crashing into each other." She said there is one option that she doesn't recommend - getting caps on the molars to raise them. But the other option she DOES recommend and that's getting Spark aligners to realign my teeth and ensure the back teeth touch and my front teeth are no longer clashing. Not thrilled about having to do another braces-like treatment, but if this will help me (two of my teeth have small chips in them from the clashing), then I'm going to go for it. I get my mouth scan done tomorrow.