Signs of dental trouble include lack of appetite (particularly for ‘tough’ foods such as hay) or if you see them excited to eat but then they don’t actually chew it/just drop it. Drool or a wet chin can also be a sign. It’s a good idea to have a check up at the vet every 6 months and that should include a look at the teeth with an otoscope (spelling?) The bun doesn’t need to be anaesthetised for this, altho in order to look at the back teeth, this usually has to be done under GA. I think so anyway, can someone confirm?

I would say making sure your rabbits are eating plenty of hay and have lots of things to chew on but I also think genetics might play a part, or just ‘luck of the draw’ My Buttercup eats hay like a maniac, whereas Peanut eats a little less. Guess which one has slight molar spurs 

Buns’ teeth never stop growing. Generally, eating hay should be enough to keep your bun’s teeth in check, though it is always good to give your bun chew toys to assist with this process and to help prevent boredom. Also, physical exams performed by your vet should involve a quick dental check. Nonetheless, even with proper care genetics may cause your bun to develop dental issues in the future. Signs that your bun may be dealing with a dental problem are: less eating or drinking, dribbling/drooling, picky eating, weight loss, reduced grooming, or eye/nasal discharge.

Hay hay and more hay! That’s the best way to prevent/minimize dental problems. Some breeds, like Lops, that have those cute short squished faces – don’t have the space they need in their jaws for all of their teeth. They are prone to dental problems. Use long strand hay. The compressed hay cubes are healthy treats, but not sufficient to keep the back molars in shape. 3 of my 4 buns have never needed their teeth filed. They eat a pile of hay the size of themselves everyday. The 4th bun, a Lop – had his teeth filed twice a year while he was eating hay. When he got sick last June he stopped eating hay, and now I have his teeth filed 3-4 times a year. Some bunnies teeth also grow faster than others. Like Sarahthegemini said, it is a good idea to take your bunny to the vet once or twice a year his/her teeth checked.

My squishy faced lop needs his molars trimmed every 4 or 5 months. This has been ongoing for the past few years. The symptoms he exhibits when he needs them done are weight loss and mushy poops.