You should start brushing your puppy's teeth sometime around eight to sixteen weeks of age. This will make it much easier for him to get used to this important daily activity. Yep, you guessed it. Your pup's teeth need the same level of care as your own. Unlike you, your pup's teeth do not get cavities, but at the same time, they do get gum disease that can be painful and result in the loss of teeth as he gets older. Proper dental care can help stop this from happening and give your pup nice fresh breath.
Odds are your pup couldn't care less what his teeth look like or how toxic his breath happens to be. The only time he worries about his teeth and gums is when they start to hurt. While you can teach an older dog to let you brush his teeth, the younger you start, the less likely he is to fuss about it.
It is up to you to keep your pup's teeth clean and healthy. The sooner you start the easier it will be for you to train him to let you brush his teeth. By keeping his teeth brushed daily, you can keep his teeth and gums nice and healthy well into old age.