--- title: "More than bad breath: how your pet’s dental health may affect their heart" id: "7585" type: "post" slug: "pets-dental-health-may-affect-heart" published_at: "2026-10-23T07:24:31+00:00" modified_at: "2026-10-23T08:33:47+00:00" url: "https://rspcapetinsurance.org.au/pet-talk/pets-dental-health-may-affect-heart/" markdown_url: "https://rspcapetinsurance.org.au/pet-talk/pets-dental-health-may-affect-heart.md" excerpt: "Bad breath might seem like a small thing, but did you know your pet's dental health could be linked to something much bigger: their heart health?" taxonomy_category: - "Health & wellness" --- [Pet Talk](https://rspcapetinsurance.org.au/pet-talk/) [Health & wellness](https://rspcapetinsurance.org.au/pet-talk/category/health-and-wellness/) More than bad breath: how your pet’s dental health may affect their heart Health & wellness # More than bad breath: how your pet’s dental health may affect their heart Written by our RSPCA Pet Insurance Team 23 Oct, 2026 - 8 min read *This article provides general information only and is not a substitute for personalised veterinary advice. Always speak with your vet about your pet’s individual health needs. Accurate as at 23 October 2026.* Bad breath might seem like a small thing, but did you know your pet’s dental health could be linked to something much bigger: their heart health? When dental disease is left untreated, bacteria from your pet’s mouth can enter their bloodstream. Research suggests there may be a link between dental disease and an increased risk of heart disease, particularly in dogs. The good news? Regular dental care, both at home and with your vet, can go a long way towards keeping your pet’s teeth and gums healthy. Let’s take a closer look at the link between dental health and heart disease, the warning signs to watch for, and the simple ways you can help care for your pet’s teeth. **Table of contents** - [What is dental disease in pets?](#what-is-dental-disease-in-pets) - [How is pet dental health linked to heart disease?](#how-is-pet-dental-health-linked-to-heart-disease) - [Can dental disease affect other organs?](#can-dental-disease-affect-other-organs) - [Signs of dental disease to look out for](#signs-of-dental-disease-to-look-out-for) - [How to help protect your pet’s teeth](#how-to-help-protect-your-pets-teeth) - [Why regular vet dental checks matter](#why-regular-vet-dental-checks-matter) - [How pet insurance can support your pet’s dental health](#how-pet-insurance-can-support-your-pets-dental-health) ## What is dental disease in pets? Dental disease is one of the most common health conditions affecting pets, with around 70% of cats and 80% of dogs showing some level of dental disease by the time they’re three years old. It usually starts with plaque: a soft, sticky layer of bacteria that builds up on the teeth. Over time, minerals in saliva can harden onto the teeth as tartar, which, if left long enough, can only be removed with a professional clean. Dental disease can also include gingivitis, which is inflammation and swelling of the gums. If dental disease progresses, it can cause your pet significant pain, along with [tooth and gum infection](https://rspcapetinsurance.org.au/pet-talk/could-your-dog-have-a-tooth-abscess/) , inflammation, and bone and tooth loss. Left untreated, bacteria can spread towards the tooth roots and cause teeth to become loose. This more advanced stage is known as periodontal disease, which affects the gums and the structures that hold the teeth in place. ## How is pet dental health linked to heart disease? Your pet’s mouth is home to plenty of bacteria. While that’s perfectly normal, problems can arise when plaque builds up and dental disease is left untreated. Over time, bacteria associated with dental disease can enter the bloodstream and may contribute to heart problems, including a condition called endocarditis, particularly in dogs. Endocarditis is an infection of the inner lining of the heart, usually affecting one of the heart valves. Research has also found a possible link between periodontal disease and heart problems in dogs and cats. While this doesn’t mean dental disease directly causes heart disease, it’s another good reason to give your pet’s teeth and gums the care they deserve. ### Linked, but not necessarily caused: what the research tells us While research has found a connection between dental disease and heart problems in pets, it doesn’t necessarily mean one directly causes the other. What we do know is that dental disease can be painful for animals, and leaving it untreated can lead to bigger health concerns. That’s why looking after your pet’s teeth and gums is about more than preventing bad breath. It’s an important part of supporting their overall health and wellbeing. ## Can dental disease affect other organs? The heart isn’t the only organ that may be affected by dental disease. Studies have reported associations between periodontal disease and kidney, liver, and heart disorders in dogs and cats. It’s also worth knowing that bad breath doesn’t always come from the mouth. While dental disease is the most common cause of [bad breath in dogs and cats](https://rspcapetinsurance.org.au/pet-talk/why-does-my-dog-have-bad-breath/) , it can also be a sign of an underlying illness, such as kidney disease or diabetes. So, if your pet’s breath has taken a turn for the worse, it’s worth getting it checked by your vet rather than simply assuming it’s normal or putting it down to ‘doggy breath’. ## Signs of dental disease to look out for Our pets can’t tell us when they’re experiencing dental pain or discomfort, so it helps to know what to look for. Keep an eye out for these signs of dental disease: - Bad breath - Broken or loose teeth - Extra teeth or retained baby teeth - Teeth that are discoloured or covered in tartar - Abnormal chewing, drooling, or dropping food from the mouth - Reduced appetite or refusal to eat - Pain in or around the mouth - Bleeding from the mouth - Swelling around the mouth If you notice any of these signs, book a check-up with your vet. They can examine your pet’s mouth and recommend the most appropriate next steps. ## How to help protect your pet’s teeth You don’t need to be a dental expert to help care for your pet’s teeth. A little know-how and a few good habits can make all the difference. ### Brush their teeth regularly Brushing your pet’s teeth is one of the best ways to keep plaque at bay and their teeth and gums healthy between professional dental cleans. If your pet isn’t quite ready for a toothbrush, try starting with a little pet-friendly toothpaste on a clean microfibre cloth reserved just for them. Gently rub it over their teeth to help them get used to the feeling. And remember, human toothpaste is a no-go for pets, as some ingredients can be harmful if swallowed. When choosing a toothbrush, make sure it’s suitably sized for your pet’s mouth. For example, cats and small dogs may need a smaller toothbrush than medium or large dogs. It’s also important to choose a toothbrush with soft bristles to help protect your pet’s gums. The earlier you introduce your pet to a dental care routine, the easier it can be to make it a regular habit. ### Ask your vet about dental diets, chews, and toys Special dental diets, chews, and toys can also help manage plaque and tartar build-up. Your vet might even recommend a pet-friendly mouthwash or gel to help keep bacteria under control. But not all dental products are created equal. Look for products accepted by the [Veterinary Oral Health Council (VOHC)](https://vohc.org/) , which assesses their effectiveness in controlling plaque or tartar. Every pet is different, so it’s always worth having a chat with your vet about which options are best suited to your best mate and their individual needs. ## Why regular vet dental checks matter Taking care of your pet’s teeth at home is a great start, but regular vet check-ups are just as important. Aim to book a general health check with your vet at least once a year, or more often if recommended by your vet. Many pets may benefit from a check-up every six months, particularly as they get older or if they’re at increased risk of dental disease. It’s a simple way to help spot and address any potential dental problems and other health issues before they become more serious. If your pet needs a professional dental clean, your vet will usually perform it under general anaesthesia. This allows them to thoroughly examine your pet’s mouth, clean above and below the gum line, take dental X-rays if needed, and treat any problems they find, while keeping your pet comfortable and free from pain during the procedure. ## How pet insurance can support your pet’s dental health Looking after your pet’s teeth is an important part of keeping them happy and healthy. And while good dental habits go a long way, sometimes your pet needs a little extra care. That’s where [pet insurance](https://rspcapetinsurance.org.au/pet-talk/what-is-pet-insurance/) can help, by covering some of the costs of eligible vet treatment when your pet needs it the most. If you’ve been considering getting pet insurance for your pet, an [RSPCA Pet Insurance policy](https://rspcapetinsurance.org.au/customisable-pet-insurance/) may be worth looking into. Not only can you customise your cover to suit your pet’s needs and your budget, but you can also add optional extra cover for dental illness if your pet is under the age of three. Every RSPCA Pet Insurance policy also contributes to the RSPCA’s [animal welfare work](https://rspcapetinsurance.org.au/pet-insurance-with-purpose/) across Australia. So, while you’re helping to protect your own furry family member, you’re also making a difference for animals in need. To learn more about how RSPCA Pet Insurance could support you and your pet, click [here](https://rspcapetinsurance.org.au/pet-insurance/) . Or, if you’re ready to take the next step, you can fetch a commitment-free pet insurance quote [online](https://quote.rspcapetinsurance.org.au/) . ### **Disclaimer** As with any insurance, terms, conditions, and exclusions apply. Please read the [Product Disclosure Statement](https://rspcapetinsurance.org.au/product-disclosure-statement/) to make sure this cover suits your needs. **References** [1] RSPCA Australia. *Why does my dog’s breath smell?* RSPCA Knowledgebase. Available from: [https://kb.rspca.org.au/knowledge-base/why-does-my-dogs-breath-smell](https://kb.rspca.org.au/knowledge-base/why-does-my-dogs-breath-smell) [2] RSPCA Australia. *Importance of dental health*. Available from: [https://www.rspca.org.au/latest-news/blog/importance-dental-health/](https://www.rspca.org.au/latest-news/blog/importance-dental-health/) [3] Frontiers in Veterinary Science. *Species- and breed-associated heterogeneity in age-related increases in periodontal disease risk among dogs and cats based on Japanese insurance claim data*. Available from: [https://doi.org/10.3389/fvets.2026.1764413](https://doi.org/10.3389/fvets.2026.1764413) [4] Frontiers in Veterinary Science. *Risk assessment for canine periodontal disease using a hybrid causal Bayesian network*. Available from: [https://doi.org/10.3389/fvets.2026.1781228](https://doi.org/10.3389/fvets.2026.1781228) [5] American Veterinary Medical Association (AVMA). *Pet dental care*. Available from: [https://www.avma.org/resources-tools/pet-owners/petcare/pet-dental-care](https://www.avma.org/resources-tools/pet-owners/petcare/pet-dental-care) [6] MSD Veterinary Manual. *Infectious endocarditis in dogs and cats*. Available from: [https://www.msdvetmanual.com/circulatory-system/various-heart-diseases-in-dogs-and-cats/infectious-endocarditis-in-dogs-and-cats](https://www.msdvetmanual.com/circulatory-system/various-heart-diseases-in-dogs-and-cats/infectious-endocarditis-in-dogs-and-cats) ## FAQs ### Can dental disease cause heart problems in pets? Research suggests there may be a link between dental disease and heart problems in dogs and cats. When dental disease is left untreated, bacteria can enter the bloodstream and may contribute to conditions such as endocarditis, an infection affecting the heart. While this doesn’t mean dental disease directly causes heart disease, it’s another good reason to keep an eye on your pet’s dental health. If you’re worried about your pet’s teeth or heart health, it’s always best to have a chat with your vet. ### How common is dental disease in pets? More common than you might think! Around 70% of cats and 80% of dogs show signs of dental disease by the time they’re three years old. The good news? Regular brushing, dental check-ups, and an appropriate diet can help keep your pet’s teeth and gums healthy. ### What are the signs of dental disease in dogs and cats? Bad breath is often one of the first signs of dental disease, but there are others to watch for. These include yellow or brown tartar build-up, loose or broken teeth, excessive drooling, difficulty eating, bleeding gums, and swelling around the mouth. If you notice any of these signs, it’s best to book a visit with your vet. ### How often should I brush my pet’s teeth? Ideally, every day. But if daily brushing isn’t possible, brushing a few times a week can still help keep plaque at bay. Always use a pet-friendly toothpaste, as human toothpaste can contain ingredients that are harmful to pets. A soft, suitably sized toothbrush designed for pets is best. If your pet isn’t too keen on having their teeth brushed or you’re not sure how to get started, your vet can show you an appropriate brushing technique and share some tips to help make things easier. [See more](https://rspcapetinsurance.org.au/faqs/) ## Related blogs [Cat dental care: a helpful guide for pet owners Jul 2026 - 8 min read Read blog](https://rspcapetinsurance.org.au/pet-talk/cat-dental-care/) [Kidney disease in cats and dogs: signs and treatment Aug 2026 - 9 min read Read blog](https://rspcapetinsurance.org.au/pet-talk/kidney-disease-in-cats-and-dog/) [Pet dental insurance: What’s covered and what’s not Mar 2026 - 7 min read Read blog](https://rspcapetinsurance.org.au/pet-talk/pet-dental-insurance-whats-covered-and-whats-not/)