Why do my 6-year-old chihuahua's teeth look like they're decaying?
What I see in your pictures looks like tartar buildup. It happens more frequently in smaller breeds and is sometimes associated with feeding wet food. Getting her teeth cleaned by your vet will remove the tartar (you can't clean it off by yourself, it's adhered firmly to the teeth) and ensure she remains healthy for longer. Tartar buildup will trap more material, irritate the gums, breed bacteria, leading to foul breath, gum and even heart disease, as the irritated gum allow the bacteria to get into the bloodstream more easily. I recommend getting her in to see your vet for an exam and bloodwork to see how well she'll tolerate anesthesia. She will have to be anesthetized for the procedure. Trust me, this is in everyone's best interests. It greatly reduces the stress for your dog and keeps the veterinary staff from getting bitten by a frightened dog. They will remove the tartar with a scaler, polish the teeth to make it more difficult for new tartar to adhere and most likely recommend some treatments you can do at home to help slow the rate at which tartar collects on her teeth in the future.
Updated on September 23rd, 2025