The best solution is to keep the dog and the fence away from each other. My cat broke off a tooth. Your family veterinarian can provide a referral to a veterinary dental specialist, when it is appropriate. Orthodontics work can vary from limited work on a few teeth to a full set of braces. However, most dogs are born with sufficiently straight teeth to allow them to chew without problems.
Studies show that hard kibbles are slightly better at keeping plaque from accumulating on the teeth.
Currently, only one pet food has been proven to help reduce plaque and tartar. If you think your pet needs a special food, consult your family veterinarian. Your pet is never too old for toothbrushing. In fact, the older your pet gets, the more important it is to keep plaque and tartar from accumulating. Studies show that bacteria from dental diseases can move systematically into the vital organs.