Dental Disease in Dogs

Dental disease in dogs usually refers to periodontal disease, a progressive infection and inflammation of the tissues around the teeth. It is extremely common in adult dogs, especially small breeds and seniors, and can cause chronic pain, bad breath, tooth loss, and more serious oral complications if untreated.

Monitor at Home

Usually not an immediate emergency, but it should not be ignored

Dental disease is often chronic and progressive, but dogs with mouth pain, facial swelling, bleeding, difficulty eating, or a suspected broken tooth should be seen by a veterinarian promptly. If your dog cannot eat, is crying in pain, or has severe facial swelling, call your vet right away.

Symptoms to Watch For

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Bad breath

Persistent foul breath is one of the most common early signs of periodontal disease.

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Red or bleeding gums

Inflamed gums may look swollen, red, or bleed during chewing or tooth brushing.

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Drooling or dropping food

Oral pain can cause excess saliva, messy eating, or food falling from the mouth.

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Trouble eating

Dogs may chew on one side, avoid hard food, eat more slowly, or lose interest in meals.

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Pawing at the mouth

Repeated rubbing or pawing at the face can be a sign of oral pain.

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Loose or missing teeth

Advanced disease can damage the tissues and bone that support the teeth.

What Causes Dental Disease

In dogs, dental disease most often starts with plaque, a bacterial biofilm that builds up on tooth surfaces above and below the gumline. If plaque is not removed, it mineralizes into tartar, while bacteria and the body's inflammatory response damage the gums, periodontal ligament, and supporting bone. This process starts as gingivitis and can progress to periodontitis, tooth mobility, and tooth loss.

Risk factors include:

  • Small and toy breeds, which are more prone to early and severe periodontal disease
  • Increasing age, since disease becomes more common over time
  • Inadequate home dental care, especially lack of regular brushing
  • Crowded teeth, retained baby teeth, or bite abnormalities that trap debris
  • Previous dental disease or tartar buildup
  • Diet, chew habits, and oral anatomy that allow plaque to persist
  • Underlying medical problems that may complicate oral inflammation or healing, as determined by your veterinarian

Dental disease is often hidden below the gumline, so a dog's teeth may not look severely affected even when significant periodontal damage is already present.

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How It's Diagnosed

Your veterinarian will usually begin with a history and an awake oral exam, looking for tartar, gingivitis, broken teeth, oral pain, swelling, and other visible abnormalities. However, a full diagnosis of periodontal disease generally requires an anesthetized dental procedure.

At a dental appointment, you can expect:

  • A physical exam and review of symptoms
  • Pre-anesthetic testing, commonly including blood work
  • General anesthesia with monitoring
  • Periodontal probing around each tooth to measure pockets and attachment loss
  • Full-mouth dental radiographs to evaluate structures below the gumline and identify hidden disease
  • Dental charting to record findings and guide treatment

X-rays are especially important because much of each tooth sits below the gumline, and significant disease may be missed without imaging. Dogs with advanced disease may also need evaluation for fractured teeth, tooth root abscesses, or other oral conditions.

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Treatment Options

Treatment depends on how advanced the disease is and which teeth are affected. The main goals are to remove plaque and tartar, control infection and inflammation, relieve pain, and save healthy teeth when possible.

Common treatment options include:

  • Professional dental cleaning under general anesthesia, including scaling above and below the gumline and polishing
  • Periodontal treatment such as root planing, curettage, or other procedures recommended by the veterinarian
  • Extraction of teeth that are loose, severely damaged, or no longer salvageable
  • Dental radiographs before and during treatment planning
  • Pain control and, in selected cases, antibiotics when infection is extensive or extractions are performed
  • Long-term home care, especially daily tooth brushing with a dog-safe toothpaste
  • VOHC-accepted dental diets, chews, or oral hygiene products when appropriate

Anesthesia-free dental cleaning is not considered adequate treatment because it only removes visible tartar and does not address disease below the gumline. Even after treatment, dental disease can return if home care and regular veterinary follow-up are not maintained.

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80–90%
Common in dogs over 3
By age 3
Typical age pattern
Every 1–2 years
Cleaning frequency
$300–$1,500+
Typical treatment cost

Living with Dental Disease

Without Management
With Proper Care
Plaque and tartar continue to build, allowing inflammation to worsen below the gumline.
Routine veterinary dental care and daily brushing help slow plaque buildup and reduce progression.
Mouth pain may go unnoticed while your dog eats more slowly, chews differently, or avoids toys.
Painful or diseased teeth can be treated, often improving comfort, appetite, and behavior.
Loose teeth, infection, and tooth loss become more likely as supporting tissues break down.
Early diagnosis with probing and dental X-rays can identify affected teeth before complications become severe.
Owners may rely on cosmetic cleaning alone and miss hidden disease under the gums.
Anesthetized dental cleaning with radiographs addresses the disease where it actually occurs and supports a better long-term outcome.

Frequently asked questions

Is dental disease in dogs serious?
Yes. Dental disease is common, painful, and progressive. Early gingivitis may be reversible with professional care and plaque control, but advanced periodontitis can lead to bone loss, loose teeth, tooth loss, and oral infection. Call your vet if you notice bad breath, bleeding gums, trouble eating, or facial swelling.
What is the difference between plaque and tartar?
Plaque is a soft bacterial film on the teeth and under the gumline. Tartar, also called calculus, is mineralized plaque. Plaque is the main driver of periodontal disease, while tartar can make oral disease more visible. Brushing removes plaque, but tartar usually requires professional scaling.
Does my dog need anesthesia for a dental cleaning?
Usually yes for a complete diagnostic and therapeutic dental procedure. Veterinary dental standards recommend general anesthesia so the team can examine the mouth fully, probe around each tooth, take dental X-rays, and clean below the gumline safely. Anesthesia-free cleanings do not treat hidden periodontal disease.
Which dogs are most at risk?
Small and toy breeds are at higher risk, and risk increases with age. Dogs with crowded teeth, retained baby teeth, poor home dental care, or previous dental disease may also develop earlier or more severe problems.
Can dental disease cause bad breath?
Yes. Bad breath is one of the most common signs owners notice first. While not every case of bad breath is caused by dental disease, persistent foul breath is a good reason to schedule a veterinary exam.
Can I manage my dog's dental disease at home?
Home care helps, but it does not replace veterinary treatment once disease is present. Daily tooth brushing with dog-safe toothpaste is the most effective home step. Your vet may also recommend dental diets, chews, or other oral hygiene products. If your dog already has pain, bleeding, loose teeth, or heavy tartar, call your vet rather than trying to manage it on your own.

Disclaimer: The information provided in this article is for educational purposes only and does not constitute veterinary medical advice. Reading this content does not establish a veterinarian-client-patient relationship. Every pet is different — always consult a licensed veterinarian before making decisions about your pet's health, diet, or care. If you'd like personalized guidance, you can talk to one of our vets. If your pet is experiencing a medical emergency, contact your local emergency animal hospital immediately.

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