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Floating A Horse's Teeth
Floating a horse's teeth means to file or rasp their teeth to make
the chewing surfaces relatively flat or smooth. The type of file used for this
is called a "float," which is where the procedure gets its name.
At right: A file, called a "float," for smoothing the
teeth of a horse. This float is in a bucket of disinfectant. |
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Why Is Floating A Horse's Teeth Necessary? Unlike some other species which can
properly digest food even if it is swallowed with little or no chewing,
horses must chew their food efficiently in order to
effectively digest it. If a horse's chewing teeth do not have a flat surface
they cannot properly chew food, and their process of digestion is greatly hindered.
This can result in weight
loss from the mild to the dramatic and poor absorption of nutrients.
Oddly enough in a species like the horse where a flat chewing surface is so
important, horses are very prone to develop uneven chewing surfaces. This is
due, in part, to a horse's upper jaw being wider than its lower jaw. This unequal width results in
a natural wear pattern that causes the edges of the teeth on the upper jaw to be longer
on the outside of the mouth where they overhang the lower jaw. The
opposite is true on the lower jaw, where the edges of the teeth wear longer on
the inside of the mouth
where they extend inside the upper jaw.
Since a horse's teeth continually emerge from the gum line for most if its
adult life, and because of the unequal widths of the upper and lower jaws, a
horse's teeth rarely, if ever, grind off during normal chewing to create a flat
surface. In addition to greatly hampering a horse's ability to digest food, a
horse's teeth might become so uneven that sharp, razor-like edges will form.
These sharp edges can cut the horse inside its
mouth. Floating a horse's teeth, or at least examining the teeth to
see if floating or some other care is needed, should be considered as basic a
part of routine care for the horse as providing food and water.
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Does Floating A Horse's Teeth Hurt?
No. There are not
any nerves at the surface of the tooth where the floating is performed.
When Should A Horse Have It's Teeth Floated?
In years past it was common practice only for horses approximately age 10 or
older
to have their teeth floated. However, modern horse management has taught us that
all horses, regardless of age, should have their teeth examined at least once a
year. We now know it is not uncommon for younger horses as well as older
horses to require floating or some other dental care. A routine examination of a horse's
teeth by an equine veterinarian or other qualified person can be vital to a
horse's health and well-being.
Photos Of A Horse Getting Her Teeth Floated
| At right is a Quarter Horse mare named Foxy. A veterinarian is
holding her tongue to the side so he can look inside her mouth to see her teeth,
and also feel them with his fingers. A veterinarian or other qualified professional might examine a
horse's teeth in this manner or by using a dental speculum or dental wedge to hold the horse's mouth
open. (Please note that care must be taken when holding a horse's tongue as
shown in the picture so as not to injure the horse.) CAUTION! Examining a horse's teeth can be far more dangerous than it may
seem, even when examining gentle horses. For example, if you reach inside a horse's mouth to
feel the teeth with your fingers you can get your fingers severely bitten. In
addition, if you aggravate a sore area inside the horse's mouth the horse could
react violently to the pain. If you want to learn to examine a
horse's teeth be sure to learn safe techniques from someone who is qualified and
experienced.
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The Float And The Wedge
To float Foxy's teeth, the veterinarian used a float and a dental wedge. A
"float" is a file or rasp used for filing down uneven edges on the teeth of a
horse. A "dental wedge" is a device used to keep the mouth of the horse open
during the floating procedure. There are different types of floats and
wedges. The ones used when these photos were taken are two very common types.
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Above: A float in a bucket of disinfectant. There are
several different styles of floats, including manual and power models. |
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Above: A dental wedge for horses. This type of wedge is also sometimes called a "spool." The yellow arrow is
pointing to the part of the wedge that is placed inside the horse's mouth
between the back teeth. |
Floating The Teeth
| In the photo to the right you can see the wedge (on the right
side of the photo) has been placed between the back teeth on one side of Foxy's
mouth. The wedge will keep her mouth open and prevent her from biting down
on the float as the veterinarian floats the teeth on the opposite side. Foxy's
owner is holding the wedge in place with its large ring handle while the
veterinarian works. On the left side of the photo you can see the arms of the veterinarian
as he is floating Foxy's teeth. He will file, or float, the teeth on the upper
and lower jaws. When he's finished with one side he will do the other. |
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Sedation
In Foxy's case, sedation was not necessary. While a little annoyed by having
her teeth floated she generally took the procedure well, with only a little
fussing. With a few pauses here and there to give her a break the procedure
was over fairly quickly without serious risk of harm to Foxy, the veterinarian,
or Foxy's owner who was assisting the vet.
However, some horses do not accept having their teeth floated as well as Foxy.
In those cases light sedation may be necessary to minimize the anxiety of the
horse and/or risk of injury to the horse or humans.
Finished
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When the veterinarian had floated Foxy's teeth on both her upper
and lower jaws on both sides of her mouth, he inspected her teeth to make sure
he had done a thorough job. This can be done by looking at the teeth, feeling
them with fingers, or both. CAUTION! Do not attempt to reach into a
horse's mouth and feel their teeth unless you have been taught safe methods for
doing so by an experienced veterinarian or other qualified person. Without
knowing safe techniques you could be injured if you should touch a sore spot
inside the mouth, or you could get your fingers severely bitten. |
Tooth Terms
Bit Seat - See "performance float," below.
Hypsodont - Hypsodont teeth are teeth with high crowns that slowly continue
to emerge from the gum for most of the animal's life. As the top of the tooth is
worn down, more tooth slowly erupts from the gum line to replace what has been
worn away. Horses and other grazing animals like cattle and deer have hypsodant
teeth.
Malocclusion - Abnormal or incorrect contact between the teeth of the upper
and lower jaws.
Mastication - The process of mashing or grinding food between the teeth. For
horses, mastication is the first step of the digestion process. Unlike some
other species which can properly digest food even if it is swallowed with little
or no chewing, a horse must efficiently chew, or masticate, its food (grasses, hay, grain,
etc.) before swallowing in order to effectively digest it.
Occlusion - The manner of contact between the teeth of the upper and lower
jaws.
Float - To file or rasp the teeth of a horse to make the chewing surfaces
relatively flat or smooth.
Performance Float - A "performance float" is different than a "regular"
float. A performance float is when the front sides of the first cheek teeth,
which are the teeth right behind where a bit sets in a horse's mouth, are
floated to round them off. In many horse people's opinions this creates a more
comfortable area for the horse when bitted. This is also sometimes called a "bit
seat."
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