If the thyroid affects everything else so much, it would make sense that it would affect the teeth – if something is out of wack. Personally I believe it does have to do with weak teeth. My teeth have been very strong me entire life – & within the last 9-10 months, – I’ve had one tooth die – (for no reason-dentist couln’t find anything wrong with the tooth)- and two abscesses – in good teeth.
I have found nothing on the net about Graves/thyroid/teeth. Unfortunately. I plan on asking my dentist (another one)- and an oral surgeon.