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My dog has bad breath & dark brown buildup on teeth. Should I worry?

Updated On September 23rd, 2025

Pet's info: Dog | Labradoodle | Male | 1 year and 7 months old | 30 lbs

My 18 month old labradoodle has developed bad breath and buildup on the lingual surfaces of his teeth, which is red-ish/brown color. I assumed this was tartar build up from not brushing his teeth often enough. Upon researching some tartar removal options (such as greenies and raw hides), I read that dogs do not accumulate tartar/calculus buildup on the lingual surfaces. Should I be concerned about the dark-colored build up on my dog’s teeth?

1 Answer

Most Helpful Answer

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Answered By Makenzie Kurth, DVM

Veterinarian

Published on January 31st, 2018

What you read is TYPICALLY true- but I have seen exceptions- mostly in very severe dental disease, patients with suppressed immune systems, and patients with very crowded teeth. However, based on Teddy’s listed breed, age, and size, I’m guessing he doesn’t fall into those categories. I don’t think it’s likely an urgent matter, but do bring it up to your vet the next time you go.

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