Bit & Bridle

Equine Dental Floating

Other Names

  • Floating (common colloquial term)
  • Dental Prophylaxis
  • Equine Dentistry
  • Teeth Rasping

What Is Equine Dental Floating?

Equine dental floating — commonly called simply “floating” — is a veterinary dental procedure in which the sharp points, uneven edges, and excessive hooks that naturally develop on a horse’s cheek teeth are smoothed and balanced using a rasp or power equipment. The term “floating” derives from the tool historically used for the procedure: a float, which is a long-handled rasp with a flat head.

Unlike human teeth, which erupt fully early in life, a horse’s cheek teeth (premolars and molars) erupt continuously throughout most of the horse’s adult life at a rate of roughly two to three millimetres per year. This continuous eruption accommodates the wear caused by the grinding action of chewing — horses spend many hours each day processing fibrous plant material, and the grinding motion creates significant wear. The upper jaw (maxilla) is slightly wider than the lower jaw (mandible) — a normal conformation called anisognathia — which means the teeth do not meet edge to edge. As the teeth wear, the outer edges of the upper cheek teeth and the inner edges of the lower cheek teeth develop progressively sharper points. Without periodic floating to remove these points, horses develop pain, difficulty chewing, and a range of secondary health problems.

Dental floating is not a treatment for disease in itself — rather, it is a fundamental component of routine preventive veterinary care that keeps the horse’s mouth in balance, comfortable, and functional throughout its life.

Why Is Dental Floating Necessary?

A horse’s natural diet of mixed grasses and forage, consumed in long grazing sessions on varied terrain, would historically have created a natural balance of wear across the dental arcade. Modern horses on managed pastures, hay-based diets, and reduced foraging time do not always achieve this natural balance, meaning sharp points, hooks, and other dental abnormalities are more common in domesticated horses than in their feral counterparts.

Unaddressed dental issues cause a cascade of problems:

  • Sharp points on the cheek teeth lacerate and ulcerate the cheeks and tongue, causing chronic pain during eating and bitting
  • Abnormal chewing technique — the horse modifies its chewing pattern to avoid pain, leading to uneven wear, food boluses in the mouth (quidding), and inefficient digestion
  • Weight loss or poor condition despite adequate feed intake
  • Bitting and behaviour problems under saddle related to jaw pain
  • Colic risk from incompletely chewed food causing impactions
  • Chronic dental disease progressing to tooth root infections and tooth loss

Signs That Dental Floating Is Needed

Horses rarely show obvious signs of dental pain, as they are prey animals with a strong instinct to mask weakness. Subtle signs that may indicate dental problems include:

  • Quidding: Dropping partially chewed balls of hay or grass. This is one of the most reliable indicators of dental discomfort.
  • Weight loss or poor condition despite adequate nutrition
  • Slow eating or preference for one side of the mouth
  • Excessively long hay stems in the droppings — indicating incomplete chewing
  • Head tilting or resistance to the bit — particularly head tossing, opening the mouth, or resistance to lateral flexion under saddle
  • Nasal discharge on one side — in more advanced cases, may indicate a tooth root abscess
  • Facial swelling — again, may indicate a tooth root problem in more severe cases
  • Bad breath — normal horse breath has a mild, pleasant smell; a foul odour may indicate infection or significant food packing between teeth

The Dental Floating Procedure

Modern equine dentistry has evolved considerably from the manual rasping that was standard practice for most of the 20th century. Current practice involves:

  • Sedation: Dental floating should always be performed with the horse appropriately sedated. A sedated horse is more relaxed, tolerates examination and treatment better, and allows the dentist or vet to work more safely and effectively. Short-acting alpha-2 agonists (detomidine or xylazine) are typically used.
  • Full mouth speculum: A speculum holds the mouth open, protecting the practitioner’s hands and allowing thorough examination and treatment of all teeth in both upper and lower arcades.
  • Oral examination: A thorough visual and tactile examination of all teeth, soft tissues, and the entire oral cavity is performed before any treatment begins. A head torch and dental mirror allow examination of teeth at the back of the mouth.
  • Floating: Sharp points, hooks, ramps, and waves are reduced using either manual floats (long-handled rasps of various shapes) or motorised equipment with rotating heads. Both methods are effective in skilled hands; motorised equipment can be faster and is particularly useful for horses with significant overgrowths.
  • Treatment of specific issues: Wolf teeth (small vestigial premolars in front of the cheek teeth) may be extracted if they are causing bitting problems. Excessively loose or diseased teeth may require extraction. Specific dental pathologies — infundibular decay, diastema (gaps between teeth) with food packing — may require targeted treatment.

Diagnosis of Dental Problems

  • Oral examination: The cornerstone of diagnosis. A thorough examination under sedation with a full speculum is far more sensitive than an unsedated cursory check.
  • Radiography: Dental X-rays are essential for assessing tooth root health, identifying periapical abscesses, evaluating the extent of infundibular decay, and planning extraction of diseased teeth.
  • Endoscopy: Sinus endoscopy or nasal endoscopy can assist in diagnosing conditions associated with upper cheek tooth disease.
  • CT scanning: Increasingly available at equine referral centres; provides the most detailed assessment of complex dental pathology and is valuable before extractions of upper cheek teeth with sinus involvement.

Treatment of Common Dental Conditions

  • Routine floating: Removal of sharp enamel points and correction of simple overgrowths.
  • Wolf tooth extraction: Wolf teeth (the first premolar, usually present as rudimentary vestigial teeth) are commonly extracted in young horses entering bitting work if they are positioned to interfere with bit placement. Extraction is straightforward under sedation.
  • Tooth extraction: Diseased or fractured teeth that cannot be preserved are extracted — either via the oral route or, for upper cheek teeth, via a repulsion technique through the facial or sinus approach under general anaesthesia.
  • Diastema management: Wide gaps between teeth that accumulate food are a source of chronic pain and periodontal disease. Management involves widening the diastema to allow it to self-clean, removing impacted food, and in some cases lavage and topical antiseptic treatment.

For more information on equine healthcare, see our articles on Equine Heatstroke and horse dental terminology. The BEVA provides comprehensive resources on equine dentistry standards.

How Often Should Horses Have Their Teeth Floated?

The standard recommendation is a full dental examination and floating at least once a year for adult horses, and twice yearly for horses under five years of age (who are actively shedding deciduous teeth) and horses over 15 years of age (whose remaining tooth reserve is diminishing and who are more prone to specific dental problems). Horses with known dental conditions — diastemata, tooth loss, significant malocclusions — may require more frequent assessment based on individual need.

Prevention

  • Establish routine dental examinations from the first year of life and maintain annual or biannual schedules throughout the horse’s life.
  • Provide adequate long-stem forage — hay and pasture grazing — which promotes natural tooth wear and reduces the rate of sharp point development compared to horses on predominantly pelleted or concentrate-based diets.
  • Ensure all dental work is performed by a qualified equine veterinary surgeon or a registered equine dental technician working under veterinary oversight, to the standards of professional regulatory bodies in your region.

Prognosis

Prognosis for horses receiving routine dental care is excellent. The great majority of dental conditions identified through regular examination are manageable, and horses maintained on an appropriate dental programme retain functional dentition and the ability to process forage well into old age. Horses presenting with advanced, neglected dental disease — significant tooth root infections, extensive tooth loss, or severe malocclusions — have a more guarded prognosis for long-term maintenance of body condition and may require intensive ongoing management.

When to Call the Vet

Schedule a dental examination if you notice:

  • Quidding — dropping food boluses while eating
  • Unexplained weight loss despite appropriate nutrition
  • Resistance to the bit or new-onset bitting problems
  • One-sided nasal discharge or facial swelling
  • Bad breath beyond the normal mild smell of digestion
  • The horse is more than 12 months past its last dental examination

Frequently Asked Questions

How often should I have my horse’s teeth floated?

At minimum, adult horses should have a full dental examination and float annually. Horses under five years of age should be seen every six months during active tooth eruption and shedding. Horses over 15, or those with known dental disease, often benefit from biannual assessment. Your vet will advise on the appropriate interval for your individual horse.

Can I float my horse’s teeth myself?

No. Equine dental work requires professional training, the correct equipment, and the ability to safely sedate the horse. Amateur attempts to float teeth can damage the dental arcade, cause injury to the horse, and miss significant pathology that only a trained eye can identify. Always use a qualified equine veterinary surgeon or a registered equine dental technician.

Does floating hurt the horse?

Floating itself — when performed correctly under appropriate sedation — should not be painful. The procedure removes sharp enamel points that would otherwise cause ongoing pain, and most horses are more comfortable after floating than before. Occasional mild soreness in the jaw muscles may be seen for a day or two after a thorough treatment session, particularly in horses that have not been floated recently.

What are wolf teeth and should they always be removed?

Wolf teeth are small, vestigial first premolars that appear just in front of the upper cheek teeth in many horses (less commonly the lower jaw). They are remnants of ancestral equid dentition. Wolf teeth are not always problematic — some horses carry small, firmly rooted wolf teeth their entire lives without issue. However, when positioned directly in the path of the bit or loosely rooted, they cause pain and bitting resistance and should be extracted before bitting training begins. Extraction is a simple, routine procedure under sedation.