No, chewing on wood right now won't help. The teeth just need to be trimmed. I don't know how vets are there in your country, but if you know of a vet that really is knowledgeable about rabbits, taking your rabbit to the vet to have the teeth trimmed would be best if at all possible. They most likely will just use some cutters to clip the overgrown incisors. I doubt the molars are a problem. Usually when the incisors are overgrown at this age, it can just be due to the rapid growth of the bunny, and that as the baby grows up, the bone structure will correct itself and there won't be any more teeth problems. But while this is happening the teeth have to be kept trimmed usually every 3-8 weeks.
One other possibility if finding a decent vet or affording one is going to be a problem, is trimming the teeth yourself. This isn't normally something I would recommend, but it might be something needed in your situation. It's not really a difficult thing to do. You can usually go on YouTube and look up instructional videos on how to trim a rabbits teeth. You basically use sharp wire cutters or scissors used to trim peoples fingernails. It's best to use ones that are good quality and new so that you are sure they are sharp. The important thing is to make sure to keep the bunnies tongue out of the way(a tongue depressor might work) and to clip carefully so that no skin is nicked. So like I said, I wouldn't normally recommend anyone trim their own rabbits teeth, but it might be the best alternative for you if you don't have access to a good vet or have the money for it, especially since you will probably need them trimmed every 3 weeks for a while until the bunny is done growing, or even possibly for life.