Aww that’s so stressful. Chewing the cage bars would not cause molars to fall out like that! Even if a tooth is broken from something, a healthy tooth would grow back.
I had a bunny (Moose) who’s molars kept cracking and rotting. He ended up with an abscess because of it, so be sure to check Tambor for abscesses. Sometimes they can form in the upper jaw and push on the sinuses, causing eye issues.
My extremely rabbit savvy vet’s explanation was that some bunnies just have “Icky teeth”, meaning it was a congenital issue. Moose was only a year or 2 old at the time.
I don’t want to alarm you, but Moose passed away suddenly a few months after his dental issues were detected, and autopsy couldn’t find a cause. Since this is a sudden change with Tambor, you may want to do some blood work and x-rays just to make sure there isn’t something else going on. Scary things like bone cancer can manifest in the jaw, and my personal theory is that maybe Moose had bone cancer (but I really have no evidence for this other than the symptoms). But it’s also very likely he just had some genetic problems.
I also know of some bunnies who lost a few molars, but then their teeth stabilized after a few trimmings and things were fine. So it’s not all scary scenarios!
These things get into the cutting edge of rabbit medicine, so if your vet isn’t super rabbit savvy, a second opinion from a specialist would be a good idea.
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The answers provided in this discussion are for general guideline purposes only. The information is not intended to diagnose or treat your pet. Seek the advice of your veterinarian or a qualified behaviorist.