Dogs instinctively hide dental pain, so the signs are easy to miss. Watch for . Any one of these is worth a dental check; most dental disease sits below the gumline and can only be treated with a professional scale and polish under anaesthesia.
Dogs are experts at masking discomfort. In the wild, showing weakness made an animal a target, and that instinct hasn’t left our pets. A dog with a painful, infected mouth will often keep eating, keep wagging, and give almost nothing away. So by the time the pain becomes obvious, the dental disease underneath is usually well advanced. This guide covers the warning signs you can spot at home, what causes them, and when to act.
Why dogs hide dental pain
Pain is a survival signal an animal instinctively conceals. Dental disease also develops slowly over months and years, so dogs simply adapt: chewing on the other side, swallowing food whole, slowing down at the bowl. Owners often put these changes down to “getting older” or being “a fussy eater,” when the real cause is a sore mouth.
8 warning signs your dog may be in dental pain
Watch for any of the following, even one is worth a dental check:
- Persistent bad breath (halitosis). Strong, lingering mouth odour is not normal. It usually means bacteria and infection along the gumline.
- Drooling, sometimes tinged with blood or thicker than usual.
- Dropping food, or chewing only on one side of the mouth.
- Reluctance to eat hard food or chew toys: your dog may go to the bowl, then hesitate or walk away.
- Pawing at the mouth, or rubbing the face along the floor and furniture.
- Red, swollen or bleeding gums: you may notice a pink tinge on toys or in the water bowl.
- Yellow-brown tartar build-up on the teeth, especially the back teeth.
- Loose, wobbly or broken teeth, and in advanced cases, a swelling on the face just below the eye, which can signal a tooth-root abscess.
There are behavioural clues too: a normally playful dog becoming withdrawn, grumpy when touched near the head, or less interested in chew time.
What’s actually causing the pain?
The most common culprit is periodontal (gum) disease – in fact, by three years of age most dogs already have some degree of it (2019 AAHA Dental Care Guidelines). Plaque hardens into tartar that creeps below the gumline, triggering gingivitis and, if left untreated, progressing to gum, bone and tooth loss. Other causes include fractured teeth (often from bones or very hard chews), tooth resorption, and oral growths. Beyond the mouth, the bacteria involved can place extra strain on the heart, liver and kidneys — so dental health is whole-body health.
Why brushing at home won’t fix it on its own
Regular brushing is excellent for slowing plaque, and we recommend it (here’s how to brush your dog’s teeth). But once tartar has hardened and disease has reached below the gumline, brushing can’t reverse it and that’s precisely where the damage and pain sit. At that point your dog needs a professional dog dental cleaning: a thorough dental scale and polish performed under general anaesthesia. It’s the only way to clean safely beneath the gumline and examine each tooth properly, because no awake dog will hold still for that.
What a dental check and scale & polish involves at AVH Animal Ark
If you’ve spotted any of the signs above, a dental assessment is the next step. Here’s how we approach it at AVH Animal Ark Veterinary Group:
- Pre-dental consultation with a thorough oral exam, plus recommended blood tests (from $250) to confirm your dog is fit for anaesthesia — especially important for senior dogs.
- Safe general anaesthesia with IV fluid therapy and full anaesthetic monitoring throughout.
- Ultrasonic scaling and polishing using our iM3 GS Elite veterinary dental unit, removing tartar above and below the gumline.
- Pain relief and local nerve blocks if any extractions are needed.
- A monitored, comfortable recovery before your dog heads home the same day.
We see dogs across Singapore from our two clinics – Springleaf and Tampines – and we’re open 7 days a week.
When should you book?
Don’t wait for your dog to stop eating, by then the problem is usually severe. If you notice persistent bad breath, dropped food, or visible tartar, book a dental check. A dog dental scale and polish starts from $550 (more for advanced cases), and we’ll give you a clear, personalised quote after examining your dog.
Worried your dog might be in silent pain? Book a dental check at our Springleaf or Tampines clinic and let our team take a proper look. Book an Appointment →
Frequently asked questions
Will my dog show obvious signs if a tooth really hurts?
Often not. Dogs instinctively hide pain and keep eating, so subtle clues — bad breath, chewing on one side, less interest in toys — may be the only hint. When in doubt, have the mouth checked.
Is bad breath in dogs normal?
No. Persistent bad breath is one of the most reliable early signs of dental disease, not just “doggy breath.” It’s worth a dental check.
Can dental pain be treated without anaesthesia?
The disease that causes pain sits below the gumline, where it can’t be reached safely or thoroughly on an awake dog. A proper scale, polish and assessment is done under general anaesthesia for your dog’s comfort and safety.
How much does it cost?
A dog dental scale and polish starts from $550 (inclusive of 9% GST); advanced cases with multiple extractions cost more. Blood tests are separate, from $250. You’ll get a personalised quote after the consultation.
Medically reviewed by Dr Colin Chin, Veterinarian (Murdoch University, 2011) – special interest in anaesthesia and small-animal medicine; anchor veterinarian at our Tampines clinic. Read Dr Colin’s profile →
Last reviewed: June 2026. This article is general information and not a substitute for a consultation with your vet.
References / Further reading
- 2019 AAHA Dental Care Guidelines for Dogs and Cats – American Animal Hospital Association
- WSAVA Global Dental Guidelines – World Small Animal Veterinary Association
- Veterinary Oral Health Council (VOHC) – accepted home-care products (VOHC seal)
Related reading