Stained, Discolored Teeth in Dogs

Medically Reviewed by

Dr. A. Arthi (BVSc, MVSc, PhD.)
Group Medical Officer - VOSD Advance PetCare™

Share this Article
What you will learn

Stained Tooth and Teeth in Dogs

Stained teeth in dogs refer to any deviation from their normal tooth color. The standard color of a dog’s teeth varies depending on factors such as shade, enamel thickness, and translucency. Discoloration can manifest either extrinsically or intrinsically.

Extrinsic discoloration occurs when external pigments accumulate on the surface of the teeth. These pigments come from outside sources rather than internal conditions. Intrinsic discoloration, on the other hand, involves secondary factors affecting the tooth’s internal structure, leading to discoloration of the underlying dentin.

Symptoms

Intrinsic discoloration is characterized by secondary factors occurring within the tooth, leading to discoloration of the underlying dentin. Extrinsic discoloration, on the other hand, happens when external pigments accumulate on the tooth surface. This discoloration originates from an external source rather than from a physical condition. Common symptoms associated with both types of discoloration include:

Abnormal coloration of one or more teeth

Fractured tooth

Pitted enamel (the glossy covering of the tooth) with staining

Rings or lines of discoloration around one or more teeth

Causes

Extrinsic Discoloration:

  • Bacterial stains originating from plaque (composed of mucin, debris, bacteria, and a thin layer of food) and calculus
  • Food items
  • Bleeding gums
  • Materials used in dental restorations
  • Medications
  • Metal exposure

Intrinsic Discoloration:

  • Internal factors (such as trauma or injury)
  • Localized destruction of red blood cells within the tooth (due to trauma)
  • Systemic infections
  • Medications (like tetracycline)
  • Overexposure to fluoride (ingestion of fluoride-containing toothpaste)
  • Elevated levels of bilirubin in the bloodstream (from bile, the digestive fluid stored in the gallbladder)
  • Amelogenesis imperfecta (a condition where dental enamel fails to calcify properly)
  • Dentinogenesis imperfecta (a condition where dentin development is impaired)

Diagnosis

To diagnose the condition, your veterinarian will conduct a comprehensive blood profile, including a chemical blood profile, complete blood count, and urinalysis. Providing a detailed history of your dog’s health, symptom onset, and potential contributing factors such as diet, injury, or recent illnesses is essential. This information can offer valuable insights into the underlying cause of the dental issue.

An oral examination is a crucial part of the overall physical assessment. X-rays of your dog’s teeth will be necessary to detect internal or external resorption and determine if restorative materials or bacterial stains are penetrating the tooth crown. Your veterinarian may utilize a powerful fiber optic light focused on the teeth to differentiate between vital and non-vital dental pulp (the nerves and blood vessels within the tooth). If tooth extraction is necessary, your veterinarian will likely administer general anesthesia to sedate your dog for the procedure.

Treatment

Extrinsic stain removal procedures can be conducted for cosmetic purposes. These interventions typically include internal and/or external treatments such as bleaching, veneers, and crowns.

Intrinsic stain removal may be performed to enhance the functionality of the teeth and alleviate discomfort for your dog. This often entails employing endodontic treatment, which focuses on the interior of the tooth, including the pulp and surrounding tissues. Crowns and veneers may be utilized to safeguard the teeth and their pulp.

Living and Management

It is crucial to treat any discolored teeth to avoid plaque and calculus accumulation and to mitigate the risk of further periodontal disease. Discolored teeth are particularly susceptible to fractures, which may lead to tooth abscess formation due to bacterial infection.

To prevent discoloration in future litters, it’s advisable to refrain from administering certain medications to pregnant dogs. With adequate care and attention, discoloration of teeth in puppies can be prevented effectively.

Related Videos

If you seek a second opinion or lack the primary diagnosis facilities at your location, you can connect with your vet or consult a VOSD specialist at the nearest location or with VOSD CouldVet™ online.

Donate to VOSD
*Indian tax benefits available

Beneficiary Details

VOSD - Voice of Stray Dogs

info@vosd.in

Please be aware that the average cost of a dog’s upkeep is over ₹5,000/ US$ 40/ per month – which is even at the scale at which VOSD operates (1800+ dogs in a 7-acre facility as of Jan 2026), the average cost over the lifetime of the dog, including 24×7 availability of over 100 staff, including 20 dedicated caregivers, India’s best medical facility through India’s largest referral hospital for dogs, as well highly nutrinous freshly prepared and served twice a day!

Did You Know?

VOSD banner

Related Dog Conditions

Osteomyelitis in Dogs

What is Osteomyelitis in Dogs? Osteomyelitis in dogs refers to the inflammation of bone and/or bone marrow caused by a

Squamous Cell Carcinoma in Dogs: Symptoms, Causes, Treatment

Squamous cell carcinoma in dogs is a malignant skin and tissue cancer that can affect the mouth, paws, and skin, and is more manageable when identified in its early stages. Understanding the symptoms and seeking prompt veterinary assessment gives your dog the best chance of effective treatment and a good quality of life.

Hookworms in Dogs

What are Hookworms in Dogs? Hookworms, namely Ancylostoma caninum, Ancylostoma brasiliense, and Unicinaria stenocephala, rank among the most prevalent parasitic