Many dog owners assume bad breath is simply part of owning a dog.
While mild “dog breath” can be common, strong or worsening bad breath is often one of the earliest signs of underlying dental disease.
In many cases, bad breath develops because of plaque, tartar, gum infection, or painful, diseased teeth hiding below the gumline.
At The Village Vet, dental disease is one of the most common health issues we see in dogs and left untreated, it can lead to severe health consequences. Many pets even continue eating and behaving normally despite significant oral pain.
What causes bad breath in dogs?
The most common cause of bad breath in dogs is dental disease.
As plaque and tartar build up on the teeth, bacteria starts to accumulate around the gums and beneath the gumline. This leads to damage of the soft tissue structures and bone supporting the teeth. This is known as periodontal disease.
This leads to:
- gum inflammation (gingivitis)
- tooth root infection/ abscesses
- painful, loose or damaged teeth
The smell often becomes progressively worse as the disease advances.
Certain dogs are also more prone to dental disease, particularly:
- small breed dogs
- older dogs
- dogs with crowded teeth
- malocclusion (misaligned bite)
Is bad breath always caused by dental disease?
Not always, but dental disease is by far the most common reason.
Occasionally, bad breath can also be associated with:
- foreign material stuck in the mouth
- oral tumours
- gastrointestinal disease
- kidney disease
- diabetes
If your dog’s breath has suddenly changed or become noticeably unpleasant, it is worth organising a veterinary check-up to identify the underlying cause.
Signs your dog may have dental disease
Dental disease can be surprisingly difficult to recognise at home, especially in the early stages.
Common signs include:
- bad breath
- yellow or brown tartar buildup
- red or bleeding gums
- drooling
- chewing on one side of the mouth
- dropping food while eating
- reluctance to chew toys
- pawing at the mouth
- loose teeth
- swelling around the mouth or jaw
One of the biggest misconceptions around dental disease is that dogs stop eating when their mouth hurts.
In reality, many dogs continue eating despite significant discomfort, which is why dental disease often progresses unnoticed for quite some time.
Does dental disease hurt dogs?
Yes, dental disease can be extremely painful.
Inflamed gums, infected teeth, exposed tooth roots, and advanced periodontal disease can all cause ongoing discomfort.
Many owners are surprised by how much brighter, happier, and more energetic their dog seems after dental treatment. Dogs that were previously quieter or less interactive often become noticeably more comfortable once painful diseased teeth are treated.
What happens during a dog dental check-up?
At The Village Vet, dental assessments include:
- examination of the teeth and gums
- assessment of tartar buildup and gum disease
- dental grading
- discussion of any concerning findings
- personalised treatment recommendations
Some dogs may simply need ongoing preventative care and monitoring, while others may require professional dental cleaning or more advanced treatment.
Why are dental X-rays important?
Many painful dental problems develop below the gumline, where they cannot be seen during a routine examination.
Dental Radiographs help identify:
- infected tooth roots
- abscesses
- fractures
- bone loss
- hidden disease beneath the gums
Without dental radiographs, a significant painful disease can sometimes remain hidden.
Real Patient Story: Ntombi’s Hidden Jaw Cyst
Ntombi, an 8-year-old Boxer, came in for what appeared to be a routine dental clean with only mild tartar visible above the gumline. Because she had never had dental radiographs before, we performed a full dental assessment under anaesthesia.
Her dental radiographs revealed a large hidden cyst destroying part of her lower jawbone. This is something that would have been impossible to detect during a normal visual examination alone.
Thankfully, the problem was identified before her jaw fractured.
This is exactly why dental radiogrpahs are such an important part of comprehensive dental care for pets.
How is dental disease treated in dogs?
Treatment depends on the severity of the disease.
Professional dental treatment may include:
- ultrasonic scale and polish
- dental radiographs
- extractions in some cases
- treatment of infected or damaged teeth
- ongoing home dental care recommendations
All dental procedures are performed under general anaesthesia, so every tooth can be properly assessed and treated safely and comfortably. We also perform local nerve blocks to keep pain under control whilst lowering the level of anaesthesia required.
Pain management is a major priority throughout the process.
How can I help prevent bad breath in my dog?
The best way to prevent dental disease is through regular preventative dental care.
Helpful strategies include:
- daily tooth brushing
- dental chews
- prescription dental diets
- food additives such as simply seaweed
- oral rinses, gels or wipes
- regular dental check-ups
- laser therapy
Early intervention often prevents more advanced and painful dental disease from developing later.
Read our full blog on how to best look after your pet’s teeth at home.
When should I book a dental check for my dog?
If your dog has:
- persistent bad breath
- tartar buildup
- red gums
- chewing difficulties
- drooling
- signs of mouth discomfort
It is a good idea to organise a dental assessment before the problem progresses further.
At The Village Vet, we provide comprehensive dental care for dogs and cats across Sydney’s North Shore, including dental health checks, professional teeth cleaning, dental radiographs, laser therapy and advanced dental treatment.
For existing clients, we also offer free dental health checks to help identify problems early and guide the most appropriate treatment plan for your pet.