Dog Dental Grades Explained: What Grade 1-4 Actually Means

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Quick Answer

Vets grade dental disease in dogs from Grade 1 (mild gingivitis) to Grade 4 (severe, advanced periodontal disease). Most owners don't search using the clinical grade — they search in plain language like "mild," "moderate" or "severe" dental disease, so we've mapped both together below. At South Brisbane Vet, your dog's grade doesn't change our base dental price — it stays a flat $540 regardless. What can change your total cost is how many teeth need extraction, which becomes more likely as the grade increases.

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Dog Dental Grades: Clinical Terms vs Plain Language

Here's how the four grades of dental disease map to the terms most owners actually use:

Grade 1

Gingivitis Mild

Red or inflamed gums, plaque and early tartar. No bone loss yet — this stage is fully reversible with a clean.

Grade 2

Early periodontitis

Mild to Moderate Gum inflammation plus the earliest loss of the tissue and bone that support the tooth.

Grade 3

Moderate periodontitis

Moderate Noticeable loss of supporting bone, usually visible on dental X-ray, with more discomfort for your dog.

Grade 4

Advanced periodontitis

Severe Significant bone loss. Teeth are often loose, painful, and commonly need extraction.

Why Our Price Stays the Same Regardless of Grade

Some clinics price a dental differently depending on how advanced the disease is. At South Brisbane Vet, we do things differently: our standard dental package — anaesthesia, continuous monitoring, IV fluids, full-mouth dental X-rays and a full scale and polish — is priced at a flat $540, whether your dog is Grade 1 or Grade 4.

We believe this gives clients the most straightforward, fair pricing. You're not charged a higher base fee simply because your dog's disease happens to be more advanced by the time you bring them in.

What Actually Increases Your Total Cost

Where cost can go up isn't the base procedure — it's what we find once your dog is under anaesthetic and we've taken X-rays. As dental disease progresses from moderate to severe, it becomes more likely that:

Multiple teeth need extraction rather than none or one
Extractions are more complex, particularly with multi-rooted teeth
Additional complications are present, such as infection or significant bone loss

This is why two dogs can both come in for "a dental" and leave with very different bills — not because of a grade-based price tier, but because of how much extraction work was actually required.

For a full breakdown of how extraction cost is calculated, see our dedicated guide.

How Much Do Dog Tooth Extractions Cost in Brisbane? — South Brisbane Vet

From Dr Nic's Consult Room

Owners are often relieved to hear our pricing doesn't change based on grade — it means there's no incentive for us to describe your dog's teeth as worse than they are. What we focus on instead is being upfront the moment we know more: if X-rays show multiple teeth need to come out, we call before we do anything else, so you know exactly where the cost is coming from.

Dr Nic's Tip

The moment you notice any form of bad breath or early signs of gingivitis, don't wait to come in and talk to us. The longer dental disease is left, the more it snowballs — what starts as a simple, cheap fix at Grade 1 can become a much larger, more expensive problem by the time it reaches Grade 3 or 4.

Frequently Asked Questions

What does Grade 1 dental disease mean for my dog?

Grade 1 means mild gingivitis — red or inflamed gums with plaque and early tartar, but no bone loss yet. This stage is fully reversible with a professional clean.

What does Grade 4 (severe) dental disease mean?

Grade 4 is advanced periodontitis, involving significant loss of the bone and tissue supporting the teeth. Teeth are often loose and painful, and extraction is commonly needed.

Does a higher dental grade mean I'll pay more?

Not for the base procedure — our dental package is a flat $540 regardless of grade. What can increase total cost is the number of teeth needing extraction, which becomes more likely at higher grades.

Why do some moderate or severe cases cost more than others?

Cost varies mainly with how many teeth need extraction and how complex those extractions are, rather than the grade itself. Two dogs at the same grade can end up with different costs depending on individual findings.

How do I know what grade my dog's teeth are?

A free nurse dental check is the best starting point — our nurses will assess your dog's teeth and let you know roughly where things stand. A full grade is confirmed during a dental procedure, once your dog is under anaesthetic and X-rayed.

Key Takeaways

Dental disease is graded 1 (mild) to 4 (severe) based on gum and bone health
Our base dental price is a flat $540 regardless of grade
What actually increases cost is the number and complexity of extractions needed
Catching disease at Grade 1 or 2 is the best way to avoid the costs associated with Grade 3-4 treatment

Ready to Find Out Where Your Dog's Teeth Stand?

Book a free nurse dental check any time — we'll give you an honest read on your dog's dental grade and talk you through what treatment, if any, is likely to involve.

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Reviewed by Dr Nic Cher, BVMS

Principal Veterinarian | South Brisbane Vet

Dr Nic Cher is a Brisbane veterinarian with 14 years of experience caring for dogs and cats. He has a special interest in preventive healthcare, pet dentistry, pet longevity and helping owners make informed, evidence-based decisions to keep their pets healthier for longer.