Reluctance to eat hay

Question
Hi I have a 2 1/2 year old bunny , for a day or two now she has been reluctant to eat her hay( still eats some only when I prompt her), however she's still eating her pellets and drinking eagerly. I know this behavior indicates a dental problem, but about two weeks ago she had a molar/incisor checkup and had her molar spurs burred down( there was only one long sharp spur ) and about 4/5 months ago she also had her molars burred down and had x rays taken.
It is quite odd seeing her refusing her hay as she normally loves her oxbow timothy hay and just they day before she stopped eating her hay I was feeding her a handful of first cut hay and she was taking them eagerly. I was wondering if there could be a piece of hay stuck in her molars that is causing the problem? Is there anything I could do to get the hay out before going to the vet on Monday when they open. And at the vets, if there's a hay stuck inside could it be seen by the " tube microscope " - orthoscope?- , or does the rabbit has to be put under ga? I was also wondering if rabbits have resolved this problem on their own before, like chewing pellets and eventually the hay stuck would fall out? And sorry last question, could the bunny survive on timothy pellets and a little hay for a couple of day( she can't eat any vegetables or fruits as she gets soft poo for days :/ )
Thank you so much

Answer
Hi Abigail....A sudden refusal to eat hay would certainly first lead me to a dental issue.  If pain is involved, the first thing to go would be the hay since it is the most difficult to chew.  Since your rabbit has suffered from molar spurs, I would certainly consider the possibility of an abscess.  The first thing I would do is have your vet look to see if a strand of hay is stuck in between some of the teeth.  Depending on how calm you rabbit is....this might could be performed without anesthesia using a small otoscope.  If you rabbit is prone to stress, gas might be the way to go.  Not only would I be looking for hay in betweem the teeth, I would again look for spurs and also look under the tongue for ulcers.  If nothing is seen in the mouth, rads of the jaw should be considered.  Lower arcade abscesses are usually easy to see....but they can be more difficult to find if they are on the upper arcade.  You might also offer a different type of hay to see if that makes a difference.  Alfafa will usually entice any rabbit to eat it.  And any hay that is safe for a horse is safe for a rabbit so you don't have to go out and buy a premium brand....if you know anyone with a horse, see if you can get a flake of their hay.  If it's hay in the teeth, it will eventually come out but there is a possibility of infection if this happens.  But as long as she is eating something, it may come out on it's own if it is hay stuck.  And if she is healthy overall, just eating primarily pellets for a day or so should not be a major issue.  Just make sure she is drinking a proper amount of water....as always.