February is Dental Health Month! To celebrate, we're sharing some of our favorite photos of smiling dogs.

From big toothy grins to brightly-beaming mugs, these dogs' happy expressions are truly contagious.

Tommy Jefferson, a Pembroke Welsh Corgi, wears a big smile on his face during an afternoon trip to the park.

Sesame the Shiba Inu shows off her toothy grin as she climbs a tree.

An Australian Shepherd named Roofus poses for a picture after being groomed.

Gabon, a Basenji mix, is all smiles when it comes to playing fetch with her owner.

Milo the Yorkshire Terrier is happy to be dressed as one of his favorite heroes, Superman.

Peppy the Maltese smiles at her owner, hoping to play.

A Basset Hound named Jackson mugs for the camera.

Cricket, a Bull Terrier puppy, smiles mischievously just before pouncing on her owner.

Niollie the Miniature Australian Shepherd laughs as her owner fetches the ball instead of her.

A Papillon-Chihuahua mix named Baby is beaming with delight because being healthy and active makes her happy.

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