Brushing your dog's teeth

I also buy these DentaStix for my dog. I don't think it's that necessary to brush a dog's teeth, but I could be wrong. I think they can clean their own teeth for the most part because they can manage almost everything without human interference. I would only really take to brushing my dog's teeth if she seemed to be in pain or had any dental problems in particular. I think if my dog seemed to be having problems with her teeth, I would take it to a specialist because their gums are quite sensitive, and the last thing I would want to do would be to cause any additional pain or damage.