Rabbit Teeth Explained: What Every Bunny Owner Should Know

Most people know rabbits for their long ears and adorable front teeth, but those little "buck teeth" are only part of the story.

Adult rabbits actually have 28 teeth, and every single one continues growing throughout their entire life because rabbit teeth are open-rooted (also called aradicular hypsodont). Unlike our teeth, they never stop producing new tooth material.

That may sound unusual, but it makes perfect sense when you think about how rabbits live in the wild. Wild rabbits spend hours every day grazing on coarse grasses, weeds, bark, roots, and other fibrous plants. All of that constant chewing naturally wears their teeth down at about the same rate they grow.

Our pet rabbits have the exact same biology.

That's why unlimited grass hay isn't just recommended, it's essential. Hay doesn't only keep your rabbit's digestive system healthy; it also provides the side-to-side grinding motion needed to keep all 28 teeth naturally worn down.

When that process isn't working properly, teeth can become overgrown, crooked, or develop painful sharp points that make eating difficult. Some of these problems can be prevented with a good diet, while others come down to genetics, injury, or the shape of a rabbit's skull.

The good news is that understanding how rabbit teeth work, and knowing what signs to watch for, can help you catch problems early before they become painful or expensive to treat.

How Many Teeth Do Rabbits Have?

Adult rabbits have 28 teeth, including:

• Four large incisors (the front teeth everyone notices)

• Two small peg teeth hidden directly behind the upper incisors

• Ten premolars

• Twelve molars

Those back teeth are often called the cheek teeth, and they're actually where many of the most serious dental problems occur.

Unlike dogs and cats, rabbits don't have canine teeth. Instead, there's a gap between the front incisors and the cheek teeth called the diastema, which helps them move food toward the back of the mouth for grinding.

Fun Fact: People often think of rabbits as having just two big front teeth, but they actually have 28 continuously growing teeth. The incisors only do the cutting. The remaining 22 cheek teeth are responsible for grinding hay, which is exactly why problems hidden in the back of the mouth can be so difficult to spot.

Why Do Rabbit Teeth Never Stop Growing?

Because rabbit teeth are open-rooted, they're designed to keep growing for life and rely on constant chewing to wear them down.

In the wild, this isn't a problem. Rabbits spend much of the day grazing on coarse, fibrous plants, and that endless side-to-side chewing files their teeth at roughly the same rate they grow.

Domestic rabbits depend on unlimited grass hay to recreate that natural process.

That's why hay isn't simply food, it's your rabbit's toothbrush. Without enough long-strand fiber, teeth don't receive the grinding motion they need to stay healthy, and overgrowth becomes far more likely.

Why Hay Is So Important

If you've read many of my other rabbit care guides, you've probably noticed I talk about hay a lot.

That's because hay is the foundation of a healthy rabbit.

Approximately 80% of your rabbit's diet should consist of grass hay, preferably second-cut Timothy hay for most healthy adult rabbits. Orchard grass is another good option.

Hay helps:

• Naturally wear down all 28 teeth

• Keep the digestive system moving normally

• Support healthy gut bacteria

• Prevent GI stasis

• Keep rabbits feeling full

• Reduce boredom

• Encourage natural grazing behavior

Pellets and vegetables are important parts of a balanced diet, but they're much softer than hay and don't require nearly as much chewing. If a rabbit fills up on pellets instead of hay, their teeth may not wear evenly.

The more time your rabbit spends chewing hay, the healthier both their teeth and their digestive system will be.

Chew Toys Don't Replace Hay

Willow sticks, apple branches, cardboard, and rabbit-safe wooden toys are wonderful enrichment, and they help satisfy a rabbit's natural instinct to chew, especially with the incisors.

But they should never replace hay.

Chewing through a stick isn't the same as grinding long-strand fiber for hours each day. Only hay provides the continuous, side-to-side grinding motion that keeps all 28 teeth healthy, particularly the molars hidden at the back of the mouth. Think of toys as a complement to hay, never a substitute.

Incisors vs. Molars

Rabbit teeth all have different jobs:

Incisors

The six front teeth, including the two tiny peg teeth hidden behind the upper incisors, are designed for cutting and pulling apart food. They slice, grab, and clip vegetation before moving it toward the back of the mouth.

These are the teeth owners usually notice first.

Molars

The remaining 22 teeth are the premolars and molars located at the back of the mouth. These teeth do the hard work of grinding food into tiny pieces before it's swallowed, and they do most of the work when a rabbit chews hay.

Ironically, although everyone notices the front teeth, many of the most painful dental problems actually begin in the molars where owners can't easily see them. That's why a rabbit can look completely normal on the outside while still dealing with significant dental disease!

Genetics Matter More Than Many Owners Realize

A healthy diet is incredibly important, but it can't prevent every dental problem.

Some rabbits are simply born with jaws that don't line up perfectly. This is especially common in dwarf and shorter-faced breeds, where there is less room inside a smaller skull for all 28 teeth.

Holland Lops, Netherland Dwarfs, Lionheads, and other compact breeds are generally more prone to dental problems than rabbits with longer, wider jaws. It's a bit like brachycephalic dog breeds such as pugs, whose shortened faces can lead to crowded teeth and other structural issues.

That doesn't mean every Holland Lop will develop dental disease, or that larger rabbits never will, but genetics definitely play a role. I've seen rabbits raised on excellent diets still require dental work simply because their teeth never aligned correctly from the beginning.

Recent large-scale research confirms that dental disease is one of the most common health concerns in pet rabbits, though experts caution against blaming breed or face shape alone. Dental problems are complex and often involve a combination of skull shape, genetics, diet, age, injury, and other health conditions.

What Is Malocclusion?

When rabbit teeth don't line up correctly, it's called malocclusion.

Healthy rabbit teeth should meet so that chewing naturally wears each tooth against its opposite. If even one tooth becomes misaligned, it no longer wears down properly and simply continues growing.

Malocclusion can affect the incisors, the peg teeth, the cheek teeth, or several parts of the mouth at once. Overgrown incisors may grow unusually long, curl into the mouth, or protrude outward. Cheek-tooth problems are much harder to spot because they can't be seen without a proper veterinary exam.

Over time, malocclusion can lead to:

• Overgrown incisors

• Sharp molar spurs

• Mouth ulcers

• Difficulty chewing

• Weight loss

• GI stasis

• Tooth-root disease

• Painful abscesses

What Are Molar Spurs?

When the cheek teeth don't wear evenly, sharp points called molar spurs can form along their edges. These spurs may cut into the rabbit's cheeks or tongue with every chew.

Imagine trying to eat while a sharp point repeatedly scrapes an open sore inside your mouth. A rabbit with molar spurs may still nibble soft pellets, vegetables, or treats while refusing hay, because hay requires so much more grinding.

This is exactly why a rabbit that suddenly stops eating hay should never automatically be labeled a "picky eater."

Can Malocclusion Correct Itself?

Sometimes, but it depends on what's causing it.

A very minor spur or a temporary misalignment caused by an injury may improve once the teeth are corrected and the rabbit returns to eating plenty of hay. If the problem came from a one-time injury and the tooth root is still healthy, a single dental procedure may occasionally be enough to restore a normal bite.

However, if the malocclusion is caused by genetics, permanent jaw misalignment, or disease affecting the tooth roots, ongoing veterinary care is usually necessary. Some rabbits only need occasional trims, while others require dental work every few months throughout their lives.

The earlier dental problems are caught, the better the chance of preventing permanent damage and reducing the need for long-term treatment.

What Causes Dental Disease?

Several things can contribute to rabbit dental problems, and often more than one factor is at play.

Genetics

Some rabbits are simply born with jaws or teeth that don't align correctly. Inherited malocclusion can show up while a rabbit is still very young and usually requires lifelong management.

Injury

A fall, a facial injury, a broken tooth, or repeatedly pulling on cage bars can push a tooth out of alignment. If the injury is temporary and the root stays healthy, a veterinarian may be able to restore a normal bite by carefully reducing the overgrown tooth and monitoring how it regrows. Injuries to a young rabbit's incisors, however, can cause lasting misalignment as the teeth keep growing.

Inadequate Hay

Hay is the single biggest factor owners can control. A diet heavy on pellets or treats doesn't create enough prolonged grinding. Keep in mind that once malocclusion develops, feeding more hay usually won't reverse it. Hay helps prevent future problems, but it can't fix established dental disease.

Infection or Tooth-Root Disease

An infected tooth, an abscess, or a damaged root can change the angle and growth of a tooth. Rabbit dental abscesses can be especially difficult to treat because they often form a thick capsule and may require surgical removal rather than antibiotics alone.

Age and Other Conditions

Older rabbits may develop changes in the jaw, tooth roots, or chewing patterns. Pain elsewhere in the body can also reduce hay intake, which indirectly raises the risk of dental overgrowth.

Why Dental Disease Can Become Serious

Dental disease affects far more than the visible teeth.

As overgrown teeth continue growing, the roots can become elongated and push deeper into the surrounding jawbone. Because the roots of a rabbit's cheek teeth sit so close to the eyes, tear ducts, and nasal passages, dental disease often shows up in surprising ways.

This may cause:

• Tooth-root infections

• Painful abscesses

• Swelling around the cheeks

• Swelling beneath the eyes

• Lumps under the jaw or chin

• Blocked tear ducts

• Watery eyes

• Chronic runny nose

Many owners are surprised to learn that a rabbit's watery eye or persistent nasal discharge can actually be caused by a dental problem rather than an eye or respiratory infection. Left untreated, these infections can become extremely serious.

Why Dental Disease Can Lead to GI Stasis

When chewing hurts, rabbits eat less. And when rabbits eat less hay, they take in less of the long-strand fiber that keeps their digestive system moving.

This creates a dangerous cycle:

1. Dental pain causes the rabbit to eat less.

2. Reduced eating slows the digestive system.

3. The rabbit feels increasingly uncomfortable.

4. They eat even less.

5. GI stasis develops or becomes more severe.

A rabbit experiencing repeated digestive slowdowns should always receive a complete dental evaluation, especially if they're also avoiding hay.

Signs of Dental Problems

Because rabbits are prey animals, they instinctively hide pain. Dental disease doesn't always produce an obvious overgrown front tooth, so watch for subtle changes like:

• Eating slower than usual

• Selectively eating soft foods while avoiding hay

• Eating pellets but refusing hay

• Dropping food while chewing

• Chewing on only one side

• Taking much longer to finish meals

• Refusing favorite treats

• Wet chin or drooling

• Weight loss

• Smaller or fewer droppings

• Loud tooth grinding from pain

• Reduced grooming or a messy coat

• Less energy than normal

• Hiding or becoming withdrawn

• Bad breath

• Watery eyes

• Runny nose

• Swelling around the jaw or face

• Repeated episodes of GI stasis

One of the earliest warning signs is often surprisingly simple:

Your rabbit suddenly stops eating hay but still happily eats pellets or treats.

Because hay requires so much more chewing, dental discomfort usually becomes noticeable there first.

How to Check Your Rabbit's Teeth at Home

While only a rabbit-savvy veterinarian can fully examine the molars, there are a few simple things you can check at home every couple of weeks.

Feel Their Cheeks

While petting your rabbit, gently massage both cheeks and along the jawline. Feel for:

• Swelling

• Lumps

• Abscesses

• Tender areas

Many rabbits actually enjoy a gentle cheek rub, which makes this an easy habit to build into cuddle time.

Check the Front Teeth

Gently lift your rabbit's lips and look at the incisors. Healthy front teeth should be:

• Straight

• Evenly aligned

• Free from chips or cracks

• Not excessively long

• Cream to white in color

The gums should appear healthy and pink.

Watch Them Eat

Sometimes the best dental check is simply watching your rabbit enjoy dinner. Pay attention if they:

• Drop food while chewing

• Chew on only one side

• Take much longer than usual

• Refuse hay but still eat pellets

• Lose interest in favorite treats

These changes often appear before you can actually see a problem.

Important: Checking the front teeth is worthwhile, but remember that most rabbit dental problems develop in the back molars, where only a rabbit-savvy veterinarian can perform a complete examination. Normal-looking front teeth don't guarantee that the cheek teeth are healthy. If your rabbit is showing any signs of dental pain, even with perfect-looking incisors, they should still be examined.

Why Rabbits Grind Their Teeth

Not all tooth grinding is bad.

A soft, quiet grinding while you're petting your rabbit is often called rabbit purring. It's a sign your bunny feels safe, relaxed, and content.

Loud grinding, however, is very different. If your rabbit is hunched over, refusing food, sitting very still, hiding, or making a loud grinding noise, they're likely in pain and should be examined by a rabbit-savvy veterinarian as soon as possible.

Do Rabbits Need Their Teeth Trimmed?

Healthy rabbits do not need routine dental trims.

If their teeth are aligned correctly and they eat plenty of hay, they naturally wear their own teeth down. Unnecessary trimming can actually damage otherwise healthy teeth, so dental procedures should always be based on a proper examination.

Dental trimming is only necessary when a veterinarian identifies malocclusion, overgrowth, spurs, or another dental problem.

How Rabbit Teeth Are Trimmed

Rabbit teeth should only be corrected by a rabbit-savvy veterinarian using proper dental instruments.

The veterinarian typically uses a powered dental burr or disc to carefully reduce a tooth and restore a more natural shape. A thorough exam of the cheek teeth often requires sedation or anesthesia, because the back of a rabbit's mouth is narrow and difficult to inspect safely while they're awake. Incisor trims can sometimes be done while the rabbit is awake, but molars generally require anesthesia.

Depending on the condition, veterinary treatment may include:

• A complete oral examination

• Skull or dental X-rays

• Filing or burring overgrown teeth

• Removing molar spurs

• Pain medication

• Antibiotics when infection is present

• Abscess treatment

• Nutritional support

• Extraction of severely diseased teeth

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Never Trim Rabbit Teeth Yourself

Never use nail clippers, wire cutters, or other household tools to trim rabbit teeth.

Clipping can crack or split the tooth below the gumline, damage the root, introduce infection, and cause significant pain. Rabbit welfare guidance specifically recommends that incisors be reduced with a burr or dental disc, never clipped.

Can Rabbits Have Their Front Teeth Removed?

Yes. If only the incisors are chronically overgrowing, some rabbits benefit from permanent removal of the front teeth.

Although that sounds dramatic, rabbits adapt surprisingly well. Because they still have all of their molars, they quickly learn to pick up food using their lips and grind it normally. For some rabbits, this eliminates the need for lifelong incisor trims.

What If My Rabbit Can't Eat?

If your rabbit has stopped eating because of their teeth, contact your veterinarian immediately.

While waiting for treatment:

• Offer fresh hay and leafy greens.

• Keep them hydrated.

• Feed a recovery diet such as Oxbow Critical Care if instructed by your veterinarian.

• Never allow your rabbit to go long periods without eating.

Remember, a rabbit that stops eating or producing droppings is at risk of GI stasis, which is a true medical emergency.

Can Rabbit Dental Care Become Expensive?

Unfortunately, recurring rabbit dental care can add up.

The cost isn't simply for shortening a tooth. Proper treatment may require an exotic-animal exam, sedation or anesthesia, specialized dental equipment, imaging, pain medication, repeat appointments, treatment for infection or abscesses, and nutritional support during recovery.

A rabbit with genetically recurring malocclusion may need regular dental procedures throughout their life. This is something prospective owners should understand, particularly when considering dwarf or very short-faced breeds that may be more vulnerable to alignment problems. Pet insurance or a dedicated veterinary savings fund can make recurring treatment easier to manage.

Annual Wellness Exams Matter

Even if your rabbit appears perfectly healthy, annual wellness exams are one of the best ways to catch dental disease before it becomes painful.

A rabbit-savvy veterinarian has specialized equipment that allows them to examine the cheek teeth, evaluate the bite, and identify subtle problems that simply aren't visible at home.

Because rabbits are considered exotic pets, it's always worth finding a veterinarian who is experienced with rabbit dentistry.

When Should You Contact a Veterinarian?

Contact a rabbit-savvy veterinarian promptly if your rabbit:

• Suddenly refuses hay

• Stops eating or eats significantly less

• Develops a wet chin or drools

• Drops food while chewing

• Loses weight

• Has watery eyes or nasal discharge

• Develops facial swelling

• Produces fewer or smaller droppings

• Shows signs of pain

• Experiences repeated GI stasis

A rabbit that stops eating or producing droppings should always be treated as an emergency.

Final Thoughts

Rabbit teeth are incredible. Unlike ours, they never stop growing, which means keeping them healthy is something every rabbit owner should understand.

Fortunately, most rabbits will maintain healthy teeth naturally with unlimited high-quality grass hay, a balanced diet, plenty of safe chew toys, and regular veterinary care.

Get into the habit of watching how your rabbit eats, gently checking their front teeth, and feeling along their cheeks every few weeks. Small changes, like refusing hay, dropping food, or developing watery eyes, can be some of the earliest signs that something isn't right.

Most importantly, remember that the front teeth are only part of the picture. Many dental problems begin in the hidden molars, so regular checkups with a rabbit-savvy veterinarian are just as important as the care you provide at home.

If your rabbit suddenly stops eating hay, develops watery eyes or a runny nose, begins dropping food, or simply seems different, trust your instincts. Dental problems are much easier to manage when they're caught early, and the more comfortable your bunny will be for years to come.

This article is based on my experience caring for and breeding rabbits and is intended for educational purposes. It should not replace diagnosis or treatment from a qualified rabbit-savvy veterinarian.