Do our dogs have a much cleaner mouth than humans? Many believed it though, but is it really true?

The answer to this question will be no. Just like a human’s mouth, dogs have their own bacteria on their mouth. Hence it’s no cleaner than a human’s mouth is. It is somehow difficult to compare because both species have their own set of mouth bacteria and can be inaccurate when it comes to making a comparison.

Have You Wonder What A Dog Does With His Mouth?

Your dog will lick anything he finds attractive. He eats anything, whether it’s rancid or not. If given the chance, they can eat anything right from the garbage. It is difficult to compare a dog’s mouth to us who will go on flossing, brushing and going on to dental visits.

So again, our dogs’ mouth cleaner than humans? The answer will be no. We have been lied to. Dogs don’t have better oral hygiene than us. They have their own specific dog bacteria that are known to cause canine dental problems.

The Dog Mouth Myth

Just like an old wives tale, the dog mouth myth came from an unrecorded source. But the following factors may have contributed to the myth.

  • Licking. Dogs are known to lick their wounds to make it better. The licking alone helps in getting rid of dead cells and dirt. So dogs use their mouth to clean their wounds. Right after cleaning their wounds, their immune system kicks in.
  • Fewer Cavities than humans.

Between dogs and humans, dogs don’t develop a lot of dental problems. According to the study conducted by the World Health Organization in 2003, 90% of school children around the world are affected by tooth decay. But only 5% of dogs are found to have cavities. The human mouth has a bacterium called S.mutans. This bacterium thrives in human mouths that are naturally acidic. But absent in a dog’s alkaline mouth. The bacteria are known to break down simple sugars found in the food humans eat – lactose, fructose, and glucose. This breakdown will produce lactic acid and if combined with a plaque will result in dental decay.

Dog bites don’t really affect humans except for Rabies

Bacteria that are harmful to dogs are harmless to humans. That’s the reason why with the exception of rabies, dog bites don’t really affect humans. If there is any infection occurring after a dog bite it is usually caused by polymicrobial with a mix of animal oral flora.

A Significant Amount of Bacteria is Found in A Dog’s Mouth

According to a study conducted by experts, there are a relative amount of bacteria found in a dog’s mouth compared to a human mouth. A dog’s mouth has more colonies than a human does. The research was made by letting each species eat a meal, with the person not brushing their teeth. The results are numbered 1 to 4 with 1 would be the cleanest, and 4 being the highest.

The study proves that dogs have more bacteria in their mouth compared to humans. Although these bacteria are less harmful to humans it still shows that a dog’s mouth has more bacteria and its colonies compared to dogs.

In the end, it is up to you whether you would let your dog kiss you. Just see to it that oral care is important for both dog and humans alike, vaccines should be current and make vet visits a regular occurrence.


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