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Why are my 1-year-old dog's teeth stained despite regular brushing?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | spayed | 1 year and 1 month old | 60 lbs

My dog is 1 year old and her teeth look like this!! What’s going on? We brush her teeth pretty regularly.

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1 Answer

Most Helpful Answer

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Answered By Menolly Cote, DVM, CVA

Veterinarian, Certified Veterinary Acupuncturist

Published on February 11th, 2018

I understand your concern for Penny. I see some very mild tartar accumulation along the gum line of the canine tooth. There also appears to be significant staining on the second upper incisor. Significant staining such as this can be seen due to enamel defects on the tooth which allow more tartar accumulation and staining to occur. Enamel defects can occur due to injuries to the tooth such as from chewing on metal cage bars or other unapproved objects. Given the significant difference seen on the incisor, I would recommend that you have Penny's teeth checked by your veterinarian. They will be able to determine if there is an enamel defect present or if there is another potential reason for the tartar accumulation in that area.

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