Periodontal disease is one of the most common and most easily missed health issues in dogs. Studies have found that 80–90% of dogs over the age of three are already dealing with some level of periodontal disease.
But what is it and what are its symptoms?
Periodontal disease in dogs a progressive condition that affects the tissues and structures that hold your dog’s teeth in place, including the gums, ligaments, and jawbone.
Like it does in humans, periodontitis in dogs can cause discomfort, tooth loss, trigger chronic infections, and even affect their heart, liver, and kidneys.
Any dog can develop periodontal disease, studies have found smaller breeds, like small, toy, and brachycephalic (short-nosed) dogs, to be more susceptible.
Source: The Veterinary Journal
Breeds ranging from extra small to medium-small have a 23.4% chance of being diagnosed with periodontitis; larger breeds have a 9.9% chance.
If you share your home with a Pug, Yorkie, Chihuahua, Dachshund, Boxer, or Collie, it’s important to be especially proactive with dental care.
Symptoms of Periodontal Disease in Dogs
People usually associate periodontitis with middle-aged or senior dogs–that’s not the case. The first signs of periodontal disease often show up well before your dog’s third birthday. In fact, most dogs start showing early symptoms by the age of two!
One of the very first red flags is bad breath–called halitosis. Not just your typical “dog breath” — we’re talking about a sour, unpleasant odour that lingers. It’s often the first clue that something’s not right with your dog’s oral health.
Other signs are:
- A yellow or brown buildup of tartar on the teeth
- Red, swollen, or irritated gums
- Excessive drooling
- Bleeding from the gums (especially after chewing)
- Reluctance to eat hard kibble or chew toys
- Chewing on only one side of the mouth
- Pawing at the face or mouth
- A sudden change in behaviour — irritability, withdrawal, or not seeming themselves
- Abnormal discharge from the mouth
- Trouble opening or closing the mouth
- Lumps, bumps, or unusual growths inside the mouth
Many of these are subtle, and it’s common for pet parents to miss them. That’s why it’s so crucial to have your dog visit the vet regularly, so they can perform a detailed oral exam and detect signs of periodontal disease early on.
4 Stages of Periodontal Disease in Dogs
Periodontal disease in dogs is like an iceberg; the first signs (tartar buildup above the gums) is just the tip, it’s under the gumline that the real damage happens. That’s where bacteria begin eroding the structures that support your dog’s teeth, increasing the risk of pain, infection, and tooth loss.
Periodontal disease progresses in four distinct stages, with evolving health impacts and treatment options.
Stage 1: Gingivitis
This is the earliest stage, and the only one that’s fully reversible with proper care. You may notice gums looking slightly red or swollen, and they might bleed a little during brushing or chewing. A telltale red line at the base of the gums is a clear warning sign. You might also pick up on some foul breath.
What’s happening here is that plaque–a sticky film of bacteria–has started to build up along the gumline. As those bacteria release toxins, they irritate the gums and trigger inflammation. There’s no bone loss yet, but the clock is ticking.
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Stage 2: Early Periodontitis
Gingivitis left untreated advances to early periodontitis. The infection starts to creep beneath the gumline, damaging the soft tissues and beginning to break down the ligaments and bone that hold the teeth in place.
At this point, your dog may have deeper gum pockets where food and bacteria collect. This will create a breeding ground for more inflammation. The gums may be more noticeably red and puffy, and your dog might start avoiding harder foods or show signs of oral discomfort.
Stage 3: Moderate Periodontitis
Moderate periodontitis means up to 50% of the tooth’s support has already been lost. Don’t be fooled: even if the teeth don’t look much different on the surface, the real damage is occurring beneath the gum line.
The deeper pockets now allow bacteria to reach the roots of the teeth and surrounding bone. Unfortunately, this spiral increases the risk of tooth mobility (“loose teeth”) and abscesses.
Your dog may have persistent bad breath, visible gum bleeding, loose teeth, missing teeth, and a reluctance to chew or play with toys.
Stage 4: Advanced Periodontitis
This is the most severe stage, and unfortunately, it’s where the damage becomes permanent.
More than half of the bone supporting the tooth has been lost. The gums are receding, tartar is heavy and obvious. Teeth will be loose and possibly, falling out. Moreover, you will find painful ulcers or infections in your dog’s mouth.
Your dog will likely experience chronic oral pain, as a result avoiding eating (thereby losing weight).
Source: Waltham Pet Care Science Institute
Can Dogs Die from Periodontal Disease?
If left untreated, periodontal disease can lead to life-threatening complications in dogs. Whereas death is an extreme scenario, bacteria can enter your dog’s bloodstream through inflamed or bleeding gums.
Once it spreads, it can begin to affect vital organs like the heart, liver, and kidneys. Known as bacteremia, it can lead to serious illness and, in severe cases, organ failure.
How Long Can a Dog Live with Periodontal Disease?
Dogs can live for years with periodontal disease; but the real question is, what kind of life are they living?
Untreated periodontal disease slowly chips away at your dog’s comfort, health, and well-being. Their health declines due to ongoing inflammation, poor nutrition, and bacterial spread.
So while periodontal disease might not have a ticking clock attached to it, it most definitely has long-term consequences.
How to Prevent Periodontal Disease in Dogs
Prevention is much better than cure when it comes to periodontitis in dogs. It requires three key things: a well-informed pet owner, a dog that’s trained to accept dental care, and routine professional evaluations.
- Schedule regular dental exams – Your vet will look for early signs of plaque buildup, gum irritation, or bone loss.
- Practice home dental care – Daily brushing with a dog-specific toothbrush and toothpaste is the gold standard. Supplement with approved dental chews, oral rinses, and water additives designed to reduce plaque.
- Book a yearly Comprehensive Oral Health Assessment and Treatment (COHAT) – complete dental procedure performed under general anesthesia. Your dog’s teeth are cleaned and scaled, the enamel polished, and full-mouth dental imaging taken.
A COHAT is typically recommended once every year, but for smaller breeds, once every six months may be more suitable given their susceptibility to periodontal disease.
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How to Cure Periodontal Disease in Dogs?
The earlier you act, the better. Stage 1 is the only one that’s fully reversible; in stages 2 and 3, the best that can be done is stopping further damage; while in stage 4 surgery may be required.
Stage 1: Treating Gingivitis
A professional dental cleaning under general anesthesia is performed to remove plaque and tartar. We may also apply a fluoride treatment to strengthen the enamel and help prevent future plaque buildup.
A consistent at-home dental routine after that will go a long way to preserving your dog’s oral health.
Stages 2 and 3: Addressing Periodontal Disease
Treatment involves a comprehensive dental cleaning and deep scaling, both above and below the gumline. This allows us to remove the bacteria, plaque, and tartar that are causing the infection.
Regular follow-ups and a strong home care routine are essential for preventing periodontitis from progressing further.
Stage 4: Managing Damage
At this stage, the damage is extensive. Treatment typically involves oral surgery, and in most cases, we need to extract the affected teeth to relieve pain and stop the spread of infection.
While extractions may sound drastic, many dogs feel dramatically better afterward, especially if they’ve been silently suffering from chronic pain.
Protect Your Pal’s Oral Health with
At Prairie Veterinary Dental Services, we love talking teeth, offering gold standard veterinary dental care. Trusting someone else with your companion’s health can feel overwhelming, and we don’t take that responsibility lightly.
Give us a call or send us an email to book an appointment, learn more about treatment options, or just get some handy teeth cleaning tips.