DOGS AND CATS · OWNER EDUCATION
Dental and Periodontal Disease
Disease affecting the teeth, gums or surrounding bone can cause pain even when an animal continues eating normally.
THE SHORT VERSION
What matters for your animal?
Start with the warning signs and when-to-contact sections if your animal is unwell. The same outward change can have several causes, so this guide helps you prepare questions rather than identify a diagnosis on your own.
What is this condition?
Dental disease includes periodontal inflammation, fractured teeth, infection, tooth resorption and other oral conditions. Important changes can be hidden beneath the gumline.
Dental disease can be painful while an animal continues eating. The visible tooth surface does not reveal everything below the gumline, and an awake examination may miss important lesions. Professional assessment and appropriate imaging guide treatment. Home care can help maintain oral health, but brushing or a chew cannot repair an already diseased tooth or replace treatment of significant pain and infection.
Which species does this guide cover?
The species listed above are the focus of this guide, rather than a complete list of every animal that can develop this condition. Causes, testing and treatment may differ between species and individual patients.
Why can it happen?
- Plaque-associated periodontal disease and chronic inflammation.
- Fractured teeth, retained teeth, tooth resorption or oral masses.
- Age, anatomy, home care and other health conditions can influence risk.
What might an owner notice?
- Bad breath, drooling, chewing changes or food dropping.
- Pawing at the mouth, facial swelling or decreased grooming.
- Some animals continue eating despite substantial oral pain.
How is the problem investigated?
Awake oral examination followed by a complete anesthetized assessment when indicated. Dental radiographs to evaluate roots, surrounding bone and hidden disease. Biopsy or additional imaging when an oral mass or unusual lesion is present.
The part of a tooth visible above the gum is only part of its structure. Problems may involve roots, supporting bone, hidden surfaces, or neighboring tissues. A quick look in an awake animal's mouth may not reveal all of these areas, especially when the mouth is painful or the species has hard-to-see cheek teeth. A complete assessment may require sedation or anesthesia and appropriate imaging. Continuing to eat does not establish that the mouth is comfortable or that a dental problem is minor.
Imaging provides information about location, size, shape, and structural changes. Radiographs and ultrasound often answer different questions, so one does not simply replace the other. Images may reveal a complication or guide sampling without establishing the exact microscopic cause. Some procedures require sedation or anesthesia to obtain accurate images safely. Ask what the proposed study is expected to clarify and how its possible results would influence treatment, further testing, or referral.
What might treatment involve?
Professional cleaning and treatment of identified disease under appropriate anesthesia. Extraction or other treatment when individual teeth cannot be managed conservatively. Pain control and a veterinarian-directed home-care plan.
This is an overview, not a prescription or a recommendation for a specific individual animal.
What can owners do at home?
Follow postoperative food, medication and activity instructions. Use only approved dental-care products and techniques. Report drooling, swelling, bleeding or refusal to eat.
After dental treatment, eating is monitored for both quantity and comfort. The animal may need a temporary food texture or feeding approach prescribed for the procedure and species. Report persistent drooling, dropped food, bleeding, or declining intake rather than assuming discomfort will always settle on its own. Follow medication and recheck instructions, and ask when normal chewing or home oral care can resume. A visibly improved mouth still needs assessment if the animal cannot return to adequate intake.
Comfort is assessed through behavior and function as well as obvious crying or vocalization. Changes in posture, movement, grooming, sleep, social interaction, or willingness to be handled can be useful clues. Compare the animal with its own normal behavior rather than with another animal. Keep a short record of what it can do comfortably and share changes with the care team. If pain control appears inadequate, contact the veterinarian; increasing a dose or combining medicines without advice can introduce serious risks.
A feeding plan should account for the actual food eaten, not just the amount offered. Selective eating, dropped food, hidden leftovers, and competition can make intake difficult to judge. Record the food type, measured portion, treats, and any supplements so the team can assess the complete diet. A disease-specific diet or assisted feeding may be recommended in some cases, but force-feeding is not a safe default for an animal that cannot swallow normally or may have an obstruction.
Avoid actions that could make care less safe.
- Do not attempt to scrape teeth, pull a loose tooth or treat an oral infection with leftover antibiotics.
- Do not give human medications, leftover prescriptions or supplements without veterinary approval.
- Follow the written medication plan. If a side effect is suspected, contact the veterinary team immediately and follow the drug-specific stop instructions; suspected NSAID side effects require stopping that NSAID and calling the veterinarian.
- Do not delay assessment if symptoms are worsening, the animal stops eating or an emergency sign appears.
What can the longer-term outlook involve?
Comfort often improves after diseased teeth or infected tissue are appropriately treated; future care depends on the underlying condition and ongoing prevention.
A recheck is not simply a repeat of the first appointment. It assesses whether the original problem is improving, whether complications are appearing, and whether the treatment remains appropriate. The useful measures may include comfort, function, intake, body weight, examination findings, or selected tests. Ask which changes are expected before the visit and which should trigger an earlier call. Improvement in one sign does not always mean that every part of the disease has resolved.
Can risk be reduced?
Discuss regular oral assessments, home brushing and professional care when indicated.
When should you arrange care?
- Call for bad breath, drooling, chewing changes or visible gum inflammation.
Seek urgent veterinary advice if you notice:
DO NOT DELAY URGENT CARE- Facial swelling with breathing difficulty, major oral bleeding, jaw trauma or inability to close the mouth.
What information helps the care team?
Write down when changes started, what makes them better or worse, actual food and water intake, and all medicines and supplements. Short videos and a medication-label photo can help describe changes that may not appear during the appointment.
How should you understand the tests?
Ask what each proposed test is intended to answer. Some tests identify a cause; others assess severity, organ function or treatment safety. Results are interpreted with the examination and history. A normal result does not exclude every problem, and an abnormal result does not always explain every sign.
Questions to ask before leaving
- What is confirmed, and which other explanations are still being considered?
- What changes should we expect with the proposed plan, and when should we reassess if they do not occur?
- Which observations should I record, and which changes mean I should call sooner?
- What medicine or home-care problems should I report, and what are the instructions for a missed dose or suspected side effect?
- When is the recheck, what will it assess, and whom should I contact after hours?
A care plan may be adjusted as results or the response become clearer. Keep the written instructions and tell the team if cost, handling or administration difficulty makes the plan hard to follow.
Sources behind this guide
American Animal Hospital Association veterinary guidelinesVeterinary, university or animal-health guidance ↗Cornell University College of Veterinary Medicine: feline health topicsVeterinary, university or animal-health guidance ↗Content last reviewed: October 3, 2026. Review status: veterinary-informed; independent veterinarian review not yet completed.