Here's a good article on rabbit teeth. Which teeth are the problems? If it's the front teeth, you may be able to trim them yourself, just get the vet to show you how. (It's not as daunting as it sounds).
If it's the molars, you're probably stuck with regular vet visits. You can try a variety of shapes and sizes of pellets (that's one reason Imix three different brands together formy bunny Pipp)and lots of hay so he uses a variety of grinding motions, but any improvement is unlikely to be too substantial.
Here's a good article on rabbit teeth. Which teeth are the problems? If it's the front teeth, you may be able to trim them yourself, just get the vet to show you how. (It's not as daunting as it sounds).
Front teeth are easy to do once you and the rabbit both get used to it. SugarBear shows me his teeth through the bars when they need trimming (its so cute) and we trim them right away. He just sort of closes his eyesand lays there while Art trims his teeth.
I had the problem of buying some rabbits from another breeder and having them develop malcolussion after they aged a bit more. We don't breed them (obviously) and we check their teeth on a regular basis...but most of my rabbits are just fine with getting their teeth trimmed.
Back teeth - definitely need a vet visit and I think my vet told me that they could be pulled - BUT - I don't remember for sure...so don't quote me on that.
Front teeth are more able to be pulled than the molars, and I know Northern Dancer had this done on one of hers that had really bad front teeth. If he's having that much of a problem at this young age it is likely to be genetic.
How do you know when he has to go back in? Does he eat less and have pain symptoms, or did your vet recommend it? I'm just asking because there have been problems with vets trimming teeth that didn't need it. There is another member on here who's rabbit has frequent molar spurs- I'll try to dig up a thread on it.
You could try sending a pm to ditty816, the original poster. In the article, she said that her vet told her to cut back pellets as much as possible, and feed lots of hay and vegetables.
On another forum, some people recommend feeding multiple types/shapes of pellets together. They have to be chewed in different ways, so they wear the teeth down differently.