Is it true that small dogs have more dental issues than large dogs? Particularly toy breeds have more problems with their teeth and mouths than larger dogs. It’s because their mouths are tiny while their teeth remain relatively large, so there’s less room between the teeth. Small dogs also have less bone in their jaws than larger breeds, so there’s less room for the roots – and a bigger risk for dental diseases to affect the jawbone. To make matters worse, some dogs may have baby teeth that should have fallen out but didn’t – making their mouth even more crowded – abnormal roots, or an overbite or underbite. Once periodontal disease has started, it will only get worse. You will feel a bad smell from the dog’s mouth, and the bacteria can lead to other problems. Some dogs get trouble with their kidneys, liver, and even heart because of poor dental health. To remedy the problem, make sure to clean your dog’s teeth. Toothbrushing and chew toys will help, but you should also consult with your veterinarian to see if your dog needs a professional cleaning.