Porphyromonas in Dogs

Porphyromonas is a bacterial infection caused by Porphyromonas gulae, Porphyromonas salivosa and Porphyromonas denticani basteria.

When plaque starts forming and tartar starts building up on the surface of the teeth, it leads to a condition known as Gingivitis. Untreated gingivitis leads to further deposits and progresses into a condition called Periodontitis. Periodontal Disease is the inflammation of the structures which support the teeth (gum, ligament, alveolus and cementum).

Porphyromonas is the bacterial infection identified in the progression from gingivitis to Periodontitis.

This is one of the most common conditions seen in senior dogs and pets with poor mouth hygiene. Retained baby teeth, crocked teeth are also known to trigger Porphyromonas.

Porphyromonas is host specific, which means it cannot be transferred from an infected pet.


Porphyromonas is caused by Porphyromonas gulae, Porphyromonas salivosa and Porphyromonas denticani bacterium. Poor mouth condition, oral hygiene causes the overgrowth of this bacteria.

Clinical Signs & Symptoms

All dogs are prone to this condition. Common symptoms seen include:

› Tooth loss
› Gingivitis (Inflammation of the gums)
› Abscess
› Yellow or dark yellow stained teeth
› Ptyalism (Hyper-salivation or Drooling)
› Pain while chewing
› Anorexia (Loss of Appetite)
› Pyrexia (Fever)
› Halitosis (Bad Breath)
› Red, swollen and bleeding gums
› Weight Loss
› Plaque or Calculus on the teeth


Veterinarians will require a complete history of your dog which includes medical history, vaccination records, existing health concerns, current and previous medications, onset of symptoms, diet and exercise routine and any information which can help in establishing a correct diagnosis. Diagnosis is done by:

› Physical examination – A complete mouth examination checking for possible plaque and calculus buildup, gum-pocket infection, existing or presence of deciduous teeth and rotten teeth.


Once the bacteria is identified, treatment consists of:
› Professional cleaning – Scaling to remove plaque and calculus, above and below the gum-line
› Antibiotics medications and Painkillers
› Dietary Changes (soft, wet and moist food, no raw food, meat, bones)
› Extraction of deciduous teeth (baby teeth) from adult dogs
› Nutritional plan (which slows the accumulation of plaque and tartar)
› Post surgery or extractions, prescribed diet plan (which supports tissue repair)
› Antibacterial mouth solutions (to minimize further plaque formation)


A good oral and mouth hygiene is the key to prevent the bacterial infection. Early detection of Gingivitis and Periodontal disease, followed by prompt treatments will reduce the buildup of bacteria and prevent the infection.

Home Care

Home care should aim at improving the condition. As Porphyromonas is a bacterial infection identified in the progression of Periodontal disease, treatment is a long term process.

› A well planned, nutritious diet is necessary in such conditions. Routine and regular checkups to access the progress.
› Do not allow your pet to go through garbage bins, water sources, fecal infected areas.
› Regular cleaning of the teeth (using a special toothbrush and veterinary toothpaste, once or twice a week)
› Regular dental checks or examinations (every three or six months).
› Early brushing habit for puppies (they get used to it)
› There is high probability this infection can re-occur. Seek veterinarian advise post recovery on ways to prevent this from happening.

Related posts

Leave a Reply

Your email address will not be published. Required fields are marked *