The Part of Horse Care Most Owners Overlook
If I asked you to list the top five things your horse needs to stay healthy, you'd probably say food, water, shelter, farrier care, and vet checks. Dental care might not even make the list. And honestly, it didn't make mine for the first few years I owned horses. I figured if a horse could eat, their teeth were fine.
Then I watched an equine dentist work on my 12-year-old gelding who had been dropping grain and losing weight slowly over the past six months. The vet pulled back his lip, opened his mouth with a speculum, and showed me hooks on his upper premolars that were over half an inch long — sharp enough to lacerate the inside of his cheek. There were ulcers where those hooks had been digging in every time he chewed. My horse had been eating in pain for months, and I had no idea.
That was the day dental care moved to the top of my list. It should be on yours too.
Why Horse Teeth Are Different
Horses have hypsodont teeth — meaning their teeth continuously erupt throughout their lives. Unlike human teeth, which grow in and stay put, horse teeth slowly push up from below the gumline as the grinding surface wears down. A young horse has several inches of tooth reserve in the jaw; an old horse may have very little left.
This continuous eruption is designed to compensate for the constant grinding of fibrous plant material. In a natural grazing situation, where a horse eats 16 to 18 hours a day on varied terrain, this system works beautifully. The upper and lower teeth wear each other down evenly.
The problem is that domestic horses don't live in a natural grazing situation. They eat from hay nets and grain buckets, often for limited periods. Their jaw movement during eating is different than continuous grazing, and the result is uneven wear. Sharp points, hooks, ramps, and waves develop on the grinding surfaces, causing pain, difficulty chewing, and secondary health problems.
What Is Floating?
Floating is the process of filing down sharp points and correcting uneven wear on a horse's teeth. The term comes from masonry — a "float" is a tool used to smooth surfaces — and it's been part of horse care for centuries.
Modern equine dentistry uses both hand floats (long-handled rasps) and power floats (motorized grinding tools). Power floats are more common today because they're faster and allow more precise correction, but the principle is the same: remove the sharp edges and restore a more even grinding surface.
Floating is not painful when done correctly. The outer layer of horse teeth (enamel and cementum) doesn't have nerve endings. However, most veterinarians sedate the horse for a dental exam and float because it allows them to do a thorough job without the horse moving or resisting. A sedated horse stands quietly with their head supported by a dental halter or stand, mouth held open by a speculum, while the vet works systematically through each tooth.
Signs Your Horse Needs Dental Work
Some horses are stoic enough that they show no obvious signs until the problem is advanced. That's why annual dental exams are recommended even for apparently healthy horses. But these signs should prompt an immediate dental evaluation:
- Quidding: Dropping partially chewed balls of hay or grass. This is the classic dental sign — the horse can't chew effectively and loses feed from their mouth.
- Weight loss: If your horse is eating adequate amounts but losing condition, poor chewing efficiency means they're not extracting full nutrition from their feed.
- Undigested feed in manure: Visible whole grain kernels or long hay fibers in manure indicate inadequate chewing.
- Head tilting or tossing: Especially during eating or when ridden in a bridle. The horse may be trying to avoid pressure on a painful area.
- Resistance to the bit: Sudden or worsening bit resistance, head shaking, or mouth gaping can indicate dental pain. This is commonly mistaken for a training issue.
- Foul breath: A bad smell from the mouth can indicate infection, a rotten tooth, or food trapped in a dental abnormality.
- Facial swelling: Swelling along the jawline or below the eye can indicate a tooth root abscess — a veterinary emergency that requires immediate attention.
- One-sided chewing: If your horse consistently chews on one side only, the other side likely has a painful issue.
- Excessive salivation: Drooling more than usual during eating.
What Happens During a Dental Exam
Here's what to expect when your vet comes out for a dental appointment — because knowing the process makes you a better advocate for your horse.
Sedation
The vet administers a mild sedative, usually intravenously. Within a few minutes, the horse's head drops, their eyes get droopy, and they stand quietly. The sedation wears off within 30 to 60 minutes after the procedure.
External Exam
Before opening the mouth, the vet palpates (feels) the outside of the jaw and face for swelling, asymmetry, or sensitivity. They'll also observe how the incisors meet — the front teeth should align evenly.
Oral Exam
A full-mouth speculum holds the jaws open so the vet can see and feel every tooth. They'll use a headlamp and their hands to check each tooth for sharp points, hooks, waves, loose teeth, fractures, gaps (diastemas) where feed packs, and gum disease.
Floating
Based on the exam findings, the vet floats the teeth — reducing sharp points, smoothing hooks, and addressing any uneven wear patterns. This typically takes 15 to 30 minutes for a routine float.
Post-Procedure
The horse stays sedated for a while after. Don't offer feed or water until the sedation has fully worn off (usually 30 to 60 minutes) — a sedated horse can choke. Your vet will tell you when it's safe to feed.
How Often Do Horses Need Dental Care?
The standard recommendation is an annual dental exam and float for adult horses. However, some horses need more frequent attention:
- Young horses (2-5 years): Every 6 months. Young horses are shedding baby teeth (caps) and erupting permanent teeth, and problems during this transition are common. Retained caps can cause pain and misalignment.
- Senior horses (20+): Every 6 to 12 months. Older horses may have worn, loose, or missing teeth that change the wear patterns on remaining teeth. They're also more prone to periodontal disease.
- Horses with known dental issues: Every 6 months or as recommended by your vet.
- Performance horses: Every 6 to 12 months, since bit contact and collection work place additional demands on dental comfort.
Common Dental Problems in Horses
Sharp Enamel Points
The most common finding. Sharp points develop on the outside edges of the upper teeth and the inside edges of the lower teeth, cutting into the cheeks and tongue. Routine floating addresses this.
Hooks and Ramps
Overgrowths on specific teeth, usually the first upper premolar or the last lower molar. Hooks can become severe enough to lock the jaw or puncture the opposing gum. Regular floating prevents them from becoming serious.
Wave Mouth
An uneven grinding surface that looks like a wave when viewed from the side. This develops over years of uneven wear and can significantly impair chewing efficiency. It takes multiple floating sessions to gradually correct.
Tooth Root Abscesses
Infected tooth roots cause facial swelling, nasal discharge (if an upper tooth is involved), pain, and sometimes draining tracts through the skin. Treatment may require tooth extraction, which is a significant procedure but horses adapt surprisingly well to missing teeth.
Equine Odontoclastic Tooth Resorption and Hypercementosis (EOTRH)
A painful condition affecting the incisors and canine teeth, most common in horses over 15. The tooth roots become inflamed and resorbed, causing pain, loose teeth, and gum inflammation. Extraction of affected teeth is often the kindest treatment. Horses do perfectly well eating without incisors.
Finding a Qualified Equine Dentist
Equine dental care should be performed by a licensed veterinarian or a trained equine dental technician working under veterinary supervision. In most states, only veterinarians can legally sedate horses, and sedation is necessary for a thorough exam and float.
Be cautious of non-veterinary "equine dentists" who work without sedation and without veterinary oversight. While some are highly skilled, others may miss significant problems that require a full oral exam. Your horse deserves a thorough evaluation, not a quick rasp-and-go.
Ask your regular equine vet for a referral if they don't do dental work themselves. Many equine practices have a vet who specializes in dentistry, or they can recommend a dedicated equine dental specialist in your area.