Please,help me with advice! It is emergency now as much as a mystery!

Question
Hi.
I have a bunny who has been suffering for two years of some unknown illness that causes his teeth to become loose.He has had two molars removed so far and as you could imagine,had all kinds of side problems such as uneven wear,overgrown teeth,etc.
He does not eat hay and never showed an interest in it.When the problem developed,he could only eat pellets. Every time after they would extract a tooth,he would feel better for some time and go back to eating hard stuf such as carrots and also leafy vegetables for awhile. But some time later,he would stop and eat only the pellets.Then eventually he would gradually slow down on eating untill the point where he could not eat any longer on his own.And then he would have another dental procedure after which the whole story would repeat again in exact same pattern.
He has always had trouble with leafy stuf and more luck with something bigger in volume and size.Except pellets he would also eat oats.No need to say that he would always show great interest in food and then show obvious displeasure with not being able to actually consume it.
He is drooling really bad - his fur is coming off because of being constantly wet.And his eyes are runny and i dont know how to get rid of that - i have tried all kinds of stuff and nothing helps.We did the culture test and it is nothing life threatening,but just causing him certain discomfort.
A few days earlier we went to see our vet and again,they perform teeth leveling - one side was less worn that the other.And the bunny has been already on softened pellets for a month.
I am calling the vet tomorrow to let him know that my rabbit's condition has worsen and he needs a pain medication.I am looking on the Internet for info on loose teeth,but have not seeing much yet except for maloclusion,which is in our case not the culprit,but the consequence.
His stool is ok,his appetite is slowly decreasing,and I can tell he is in pain.  
Is there some bacterial infection that can cause this problem?????????

Answer
Hi Lola

Honestly I have never seen any rabbit have your rabbits condition.  So I don't believe there is a particular bacterial infection that can cause it. Did the vet look inside his mouth for any abscesses?  That is about the only other thing I can think of that would cause excessive drooling. Whatever it is that rabbit sure is lucky to have you as a mom.  When you take him to the vet I would ask the vet to check him for all of the other illnesses that can cause stomach upset and drooling.  Does he seem to be worse this time?  I don't know how else to help you other than to tell you that you are doing the right thing by getting him to the doctor right away.  I will ask around and see if anyone else has ever seen such a thing.

I really hope your little friend feels better.  It is just no fun being sick  :(

Pam