I don't have any broken teeth, however, I have suffered from extreme hypersensitivity for over 2 yrs now in my teeth...mostly my lower jaw/teeth. It feels like an ice pick picking away at my teeth! I can't eat anything too hot or anything cold, so mostly room temp foods and water. It is hard to eat anything at room temp, but I have too! I lost 80 lbs in 2010 (one year) bc the hypersenitivity was SO bad I couldn't eat anything. This was before I started the gabapentin. It has improved somewhat, but it is REALLY bad in the fall/winter when the outside temp gets cooler/cold! I am so sorry you're in so much pain! My heart goes out to you!