Periodontal disease is a prevalent condition that can affect dogs, yet it is often overlooked by pet owners. Understanding the impacts of poor oral health on canines is crucial for caring for your furry friend. This article will focus on periodontal disease in dogs, detailing its causes, symptoms, and treatment options. We will also explore the potential systemic implications of the condition, emphasizing the importance of regular dental check-ups and appropriate preventative care at home. Read more to learn about this often-neglected aspect of canine health, and learn how to ensure your four-legged pal lives a happy and healthy life.

What is periodontal disease in dogs?

Periodontal disease is a common and concerning condition that can affect your dog's oral health. The disease gradually causes inflammation and damage in the tissues surrounding a dog's teeth, including the gums, ligaments, tooth cement, and bone in the jaw. It's the most prevalent oral health issue experienced by both dogs and cats. Periodontal disease in dogs progresses through stages and begins with gingivitis before eventually advancing to periodontitis. Ensuring proactive care and management of periodontal disease is vital for your dog's oral health and well-being.

What are plaque and calculus (tartar) in dogs?

Within 24 hours, a sticky substance known as supragingival plaque begins to collect. If untreated, it can descend beneath the gum line and evolve into subgingival plaque. This plaque is embedded beneath a protective layer, preventing oxygen from reaching it and creating an environment conducive to the growth of harmful bacteria. This growth can cause inflammation in the gums, which results from the discharge of harmful enzymes and substances that damage tooth-supporting tissue.

When a dog's mouth suffers from plaque build-up, it hardens into the calculus that can be detected on the teeth within three days. This substance attaches itself both above and below the gumline on the upper teeth's cheek side and requires professional cleaning. However, visible calculus doesn't directly point toward severe periodontal disease in dogs. While calculus doesn't harm, it creates more spaces for plaque accumulation and gum irritation, leading to dental issues.

What causes periodontal disease in dogs?

Periodontal disease in dogs is primarily caused by plaque accumulation. Bacteria of various types are present in the mouth, and when plaque forms on teeth, it enables the bacteria to interact with the immune system. Typically, the bacteria and immune system coexist harmoniously. However, there are occasions where changes in environmental factors can cause some imbalances. An increase in immune system activity can ensue, thus resulting in gum inflammation. While the underlying reasons for these changes remain unclear, it's crucial to recognize their potential to cause periodontal disease in dogs.

What are the stages of periodontal disease in dogs?

There are four stages of periodontal disease in dogs, ranging from early gum inflammation to severe tissue and bone damage:

Stage 1: Gingivitis - This is the early stage of periodontal disease, characterized by redness and inflammation of the gums.

Stage 2: Early periodontitis - In this stage, there is some bone loss around the teeth, and the gums start to pull away from the teeth, forming pockets.

Stage 3: Moderate periodontitis - At this stage, there is significant bone loss, and the pockets around the teeth become deeper.

Stage 4: Advanced periodontitis - This is the most severe stage, where there is extensive bone loss, and teeth may start to fall out or need to be extracted.

What are the symptoms of periodontal disease in dogs?

Many dogs with periodontal will not reveal any symptoms. Some of the potential symptoms that they may display with periodontal disease include:

  • Bad breath: One of the most common signs of periodontal disease is bad breath, also known as halitosis.
  • Yellow or brown teeth: If your dog's teeth look discolored, it could be a sign of calculus or tartar buildup, which can lead to advanced periodontal disease.
  • Red or bleeding gums: If your dog's gums are red or bleeding, it may be a sign of inflammation caused by periodontal disease.
  • Pawing of the face: Dogs may paw at their face if the gums are inflamed or if there is pain or discomfort in the mouth.
  • Difficulty eating: If your dog is having trouble eating or is avoiding certain foods, it could be a sign of pain or discomfort caused by periodontal disease.
  • Loose or missing teeth: As periodontal disease progresses, it can lead to tooth loss or looseness.
periodontal disease in dogs
periodontal disease in dogs
periodontal disease in dogs

It's important to note that dogs can be very good at hiding pain or discomfort, so even if you don't see any symptoms, it's still important to have your dog's teeth checked regularly by your veterinarian.

How is periodontal disease diagnosed in dogs?

Periodontal disease in dogs can be diagnosed through a variety of methods, including visual examination, dental probing, and dental X-rays. The process of diagnosis may involve a combination of these methods to provide a complete evaluation of the dog's oral health.

  • Visual examination: Your veterinarian will visually inspect a dog's teeth and gums for signs of periodontal disease, such as redness, swelling, or bleeding. They may also look for plaque or tartar buildup on the teeth, which can be an indicator of periodontal disease.
  • Dental probing: This involves using a small tool called a periodontal probe to measure the depth of the pockets between the teeth and gums. In healthy dogs, these pockets are shallow (2-3mm), but in dogs with periodontal disease, they can become deep and inflamed.
  • Dental X-rays: X-rays are critical for diagnosing periodontal disease because they can reveal any bone loss that may be occurring around the teeth. This is particularly important in cases of advanced periodontal disease where there may be significant bone loss.

General anesthesia is necessary to perform a complete dental examination, as well as to safely clean and treat the dog's teeth. Under anesthesia, the dog's teeth can be thoroughly cleaned and examined, and any necessary treatments can be performed, such as extractions if necessary.

What is the treatment for periodontal disease in dogs?

Regular professional dental cleanings are important for maintaining good oral health in dogs. These cleanings involve removing plaque and tartar from both above and below the gum line through a process called scaling. The teeth are then polished and irrigated to further clean and disinfect the area. It's important to note that a simple cleaning that only removes plaque from above the gum line is not enough to treat periodontal disease, as the underlying factors causing inflammation (such as subgingival plaque and calculus) are not addressed.

General anesthesia is necessary for a thorough cleaning and to ensure that the dog is comfortable during the process. It's recommended to have professional dental cleanings done before irreversible stages of periodontal disease (periodontitis) occur, which can cause significant damage to the teeth and gums.

In severe cases of periodontal disease in dogs, more aggressive treatments may be required, such as extractions. Extractions involve removing diseased teeth that cannot be repaired or salvaged and are causing pain for the dog.

What can a dog owner do to prevent periodontal disease?

As a dog owner, there are several preventive measures that you can take to maintain your pet's oral health and prevent periodontal disease. Regular cleaning of the teeth surfaces is essential to prevent the accumulation of plaque, which can lead to periodontal disease. Remember that dental care is a lifelong commitment, and it's never too soon to develop a specific plan for your particular pet.

There are various products, techniques, and modalities available to aid in dental home care and periodontal disease prevention. Oral health products work by removing plaque through mechanical abrasion, chemical action, or a combination of the two. Since dental plaque forms within 24 hours and mineralizes into calculus within approximately 72 hours, it's important to remove plaque from the teeth daily.

Brushing your dog's teeth is usually the most effective method for plaque removal, but other methods like dental wipes or gauze may be used if brushing is not well-tolerated. It's essential to desensitize your pet to these methods, as negative experiences surrounding the process must be avoided.

Appropriate daily chewing activities and dental-healthy diets can help maintain good oral hygiene. Some dental chews and treats can reduce plaque and calculus accumulation, but others may be ineffective or even harmful if too hard such as deer antlers or compressed plastic bones. The Veterinary Oral Health Council (VOHC) grants a seal of approval to dental care products and diets that meet specific standards for slowing down plaque and tartar buildup.

The texture of a diet may also influence chewing if the pet has adequate dentition and no significant pain. The act of chewing aids in cleaning teeth surfaces. Studies have shown that dogs fed commercial dry food had lower breath odor and dental plaque buildup than dogs that were fed commercial canned/wet food.

Additionally, no evidence supports anecdotal claims that raw meat diets and treats are superior to traditional dry commercial diets in preventing periodontal disease in dogs. By implementing these preventive measures, you can help maintain your pet's oral health and prevent periodontal disease.


Periodontal disease is a common and potentially serious condition that affects the oral health of dogs. It can cause a variety of symptoms, including bad breath, bleeding gums, and tooth mobility, but many dogs may not show any signs at all. Regular dental checkups with your veterinarian and preventive measures such as daily teeth cleaning, appropriate daily chewing activities, and dental-healthy diets can help maintain your dog's oral health and prevent periodontal disease. Early detection and treatment are crucial to avoid irreversible damage to the teeth and gums. By taking steps to prevent and manage periodontal disease in your dog, you can help ensure a healthy and happy life for your furry family member.