Dental health
Dental Disease in Dogs and Cats
The most common disease in adult pets, why it is genuinely painful, and what actually prevents it.

Illustrative cover using relevant category imagery; it does not depict the exact subject.
Documented photographs
Real photographs from the credited sources below. An example may look different from your pet’s condition; photographs cannot confirm or exclude a diagnosis. Ask a veterinarian about new or changing signs.

Periodontal disease in an adult dog. Visible tartar, gum inflammation and gum recession. Tooth-root and bone damage needs veterinary examination and dental imaging.
Photograph: Corak80 · Wikimedia Commons source · CC BY-SA 4.0 · Displayed without content edits
Tartar and inflamed gums in a cat. The original source identifies tartar on a cat's premolars and molars with inflamed gums. This does not show tooth roots or establish the extent of periodontal disease; veterinary examination and appropriate dental imaging are needed. Do not force your cat's mouth open to compare it with this example.
Photograph: Abujoy · Wikimedia Commons source · CC BY 4.0 · Resized by Wikimedia to 1280 pixels wide; no content edits
Why mouth changes can be easy to miss
Dental discomfort may develop gradually, and animals may continue eating despite oral pain. Bad breath, drooling, pawing at the mouth, dropping food, chewing on one side, reduced grooming or reluctance to eat harder food can be clues, but some animals show few obvious signs. Looking at the visible teeth cannot assess every part of the mouth. A change in eating or behaviour deserves attention rather than being dismissed as normal ageing.
Make home care gradual and safe
If your animal tolerates it, accustom them to gentle handling around the muzzle before introducing a brush. Use a soft pet toothbrush and a toothpaste made for that species; human toothpaste is not intended to be swallowed by pets. Start briefly and reward cooperation. Do not force the mouth open or continue through pain or fear. If brushing is not currently possible, ask a veterinarian about realistic alternatives and a gradual plan.
Choose products carefully and avoid risky shortcuts
Dental diets, chews and toys differ in suitability and effectiveness. Select products appropriate to the species, size and chewing style, and supervise use to reduce choking or tooth-injury risks. Hard objects that cannot yield under pressure may damage teeth. Water additives or powders are not replacements for examination, and product claims should not substitute for individualized advice. Avoid scraping teeth with sharp tools at home; this can injure gums and does not address disease beneath the gumline.
Professional assessment and follow-through
A veterinarian can examine the mouth and advise whether further assessment or treatment is needed. Professional dental procedures may involve anaesthesia and are planned for the individual animal; an awake visual check is not equivalent to a complete cleaning. Ask what findings were identified, what home care is suitable and when to return. Seek prompt help for facial swelling, bleeding, marked pain, inability to eat or other sudden serious changes. Early discussion makes it easier to address concerns before they disrupt eating or comfort.
Build a mouth-check routine without force
When the animal is relaxed, lift the lip briefly to look at visible teeth and gums, rewarding calm cooperation. Do not pry the jaws apart or put fingers deep into the mouth, particularly if the animal is painful or frightened. Make a note of visible changes, chewing preferences, drooling or breath changes and share it with the veterinary team. A home look cannot rule out disease below the gumline or at the back of the mouth. If an animal resists suddenly, stop; a change in tolerance may itself be useful information for a professional.
Make brushing sustainable over time
Begin with brief, positive handling around the cheeks and lips, then gradually introduce a pet toothbrush and species-appropriate toothpaste if the animal accepts it. Aim for consistency, not a perfect long session; even a small cooperative step is progress. Replace a worn brush and keep oral-care items stored safely. If brushing causes bleeding, pain or escalating fear, stop and ask a veterinarian before trying again. Discuss an achievable routine at check-ups, including how often the mouth should be assessed and what alternatives suit the animal if brushing is not feasible.
Plan recovery after a dental procedure
Ask for written instructions about food texture, medication, activity and rechecks before collecting the animal. The appropriate routine depends on the procedure and patient, so do not reuse a previous pet’s recovery plan. Check how the animal eats and drinks once home without repeatedly lifting the lip or probing a treated area. Contact the clinic about worsening swelling, persistent bleeding, pain or reduced intake. Resume brushing only when advised; early manipulation can be uncomfortable and is not a substitute for a postoperative assessment.
Frequently asked questions
- What is a useful first step?
- Write down the animal’s routine and the specific question, then discuss individual needs with a veterinarian or suitable welfare professional.
- Can I use the same advice for every species?
- No. Care, safe equipment and risks vary by species and individual; use species-specific guidance.
- When should I contact a veterinarian?
- Contact a veterinarian about health concerns or persistent changes, and seek prompt help for severe, sudden or worsening signs.
- What should I do if the plan is not working?
- Pause any stressful or uncertain step, keep the animal safe, and ask a veterinarian or qualified professional for tailored advice.
References
- Pet care advice — RSPCA
- Pet owner resources — AVMA
- Pet health and welfare — PDSA
- Pet health library — VCA Animal Hospitals
