Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.

Stained, Discolored Teeth in Dogs

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.


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


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)


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.


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.

Scroll to Top