Skip to Main Content
Ask About Financing

Is a dog's mouth cleaner than a human's?

The saying "a dog's mouth is cleaner than a human's mouth" has been around for a long time, but is it true? Today, our Perry vets tackle this age-old question.

Comparing a Dog Mouth & Human Mouth

Comparing the mouths of a dog and a human isn't ideal. It's like comparing apples and oranges. While some overlap exists in the types of bacteria found, a dog's mouths contain various bacteria not found in yours. Dog mouths contain about 600 different germ species, compared to 615 and counting varieties in human mouths.

So in short, the answer is no.

But similarities do exist. Porphyromonas, for example, is a bacterial family that causes periodontal disease in both canines and humans. Billions of germs gather on the surface of the teeth. They cause bad breath, gum recession, tooth root abscesses, and bone damage around the tooth roots.

You can treat early stages of periodontal disease in dogs with at-home dental care. And dogs, like humans, require professional cleaning regularly.

Can you get infections and diseases from dog saliva?

The likelihood of germs being transmitted to humans via a dog's saliva is miniscule. It does, however, have a chance of happening. Dogs can spread bacterial and viral illnesses through their saliva. These can transmit if a dog bites you or if saliva enters your nose, mouth, or eyes.

Bacterial Infections

A dog bite can transmit the bacteria Capnocytophaga canimorsus through the bite wound, resulting in a serious bacterial infection in humans. Another, Pasteurella canis, most common bacteria found in a dog's mouth, is another common organism found in a person who has been bitten by a dog. The location of the wound and whether the person is immunocompromised or vulnerable in some other way determines the severity of a dog bite wound.

If you're bitten by a dog, thoroughly clean the wound with soap and water for 15 minutes before seeking medical attention. If your dog consumes Salmonella or E. coli-contaminated food, these pathogens may be transmitted to you if your dog's slobber enters your mouth. Any dog food can become contaminated, but a raw food diet has a much higher chance.


Rabies is the most serious infection that dogs can transmit through their saliva. When a dog bites someone, the virus spreads. The virus enters the nervous system and causes a variety of symptoms. Initially, dogs may experience anxiety and nervousness. In later stages, dogs become aggressive, uncoordinated, and disoriented.

If you see a dog (or wild animal) exhibiting these symptoms, contact your local animal control or police department and keep your distance. When a dog or wild animal shows symptoms of rabies, it's almost always fatal.

Is it bad if your dog licks you then?

Because your skin absorbs saliva poorly, a dog licking your skin poses little risk of infection just make sure they don't lick a wound). Your skin may develop hives, a rash, and/or become extremely itchy if you're allergic to dog saliva.

How to Clean a Dog's Mouth

Proper dog dental care, and learning how to clean your dog's teeth, are essential in making sure your dog's mouth is as clean and safe as possible. You can bring your dog in for a dental appointment to accomplish this. We recommend at least once a year or more if your dog suffers from some sort of dental disease (like periodontitis).

When you bring your dog to Westmoreland & Slappey Animal Hospital for a dental checkup our vets will perform a full oral examination for your pooch and check for signs of dental issues, such as:

  • Extra teeth or retained baby teeth
  • Bleeding around the mouth
  • Swelling or pain in or around the mouth
  • Plaque or tartar buildup on teeth
  • Discolored teeth
  • Loose or broken teeth
  • Bad breath

Oral health problems can become severe if left untreated, causing your pet a great deal of pain and discomfort. If you notice signs of periodontal disease in your pet, such as decreased appetite (which can indicate tooth pain), abnormal chewing, drooling, dropping food from the mouth, bad breath, or other symptoms, contact your veterinarian immediately to schedule a dental appointment.

We clean and polish your dog's teeth thoroughly, both above and below the gum line. We probe and x-ray the teeth, then use a fluoride treatment before applying a dental sealant to help prevent future decay and damage. If your dog has advanced periodontal disease, we will collaborate with you to create a treatment plan to help restore its mouth to a pain-free and healthy state.

Should I Brush My Dog's Teeth?

As a pet owner, you play an important role in assisting your dog in fighting dental disease. Here are a few simple ways you can help keep your dog's mouth healthy and clean his teeth:
  • Brush your pet's teeth once a day with a vet's finger brush or a child's toothbrush to remove any plaque or debris. It's as simple as brushing your own teeth. If your dog resists having his or her teeth cleaned, try some doggie toothpaste in flavors your dog will enjoy. This canine toothpaste can turn a chore into a treat.
  • Use a plaque prevention product (your vet can recommend some), which you can apply to your pet’s teeth and gums. These products act as a barrier to prevent plaque buildup.
  • Offer your pup treats such as dental chews or food designed to help prevent plaque buildup and tartar.

Dental care is an important part of your pet's overall health. Be sure to book your pet's annual dental appointment today, your dog will thank you. 

Note: The advice provided in this post is intended for informational purposes and does not constitute medical advice regarding pets. For an accurate diagnosis of your pet's condition, please make an appointment with your vet.

Is it time for your pup's annual dental cleaning? Contact Westmoreland & Slappey Animal Hospital to book an appointment to get your dog's mouth as clean as it should be!

New Patients Welcome

Looking for quality veterinary care in a warm and friendly atmosphere? Westmoreland & Slappey Animal Hospital in Perry, GA is accepting new patients! Get in touch today to book your pet's first appointment.

Contact Us

Book Online (478) 987-4811