[header] How to clean your dog's teeth [title] Buy a dog toothbrush and toothpaste. [step] Do not use human toothpaste or toothbrushes to clean your dog's teeth. Human toothpaste contains high amounts of fluoride, which is poisonous to dogs. 
Visit your local pet supply or pet grooming store to purchase dog toothpaste and a toothbrush. You can also make your own doggie toothpaste by mixing baking soda with water.