There are lots of fun side effects to getting an organ transplant. Most of these come from the various drugs you are on after the transplant. You get things that cut down your immune system, lots of steroids, etc. One of the more fun side effects is that you can lose bone density. I get treatments to help it, but I can only assume that this is at least part of the reason why I've had two teeth have hunks that have broken off in the last six months. I already feel fanatical about brushing, sheesh.
Today it happened while eating a tuna fish sandwhich, I wasn't even eating anything hard. Time for a trip to the dentist.