Routine dental care
is essential to your horse's health. Periodic
examinations and regular maintenance, such as
floating, are especially necessary today for a
number of reasons:
- We have
modified the horse's diet and eating
patterns through domestication and
confinement.
- We demand more
from our performance horses, beginning at a
younger age, than ever before.
- We often select
breeding animals without regard to dental
considerations.
Proper dental care
has its rewards. Your horse will be more
comfortable, will utilize feed more efficiently,
may perform better, and may even live longer.
THE
HORSE'S MOUTH
Horses evolved as
grazing animals, and their teeth are perfectly
adapted for that purpose. The forward teeth,
known as incisors, function to shear off forage.
The cheek teeth, including the molars and
premolars with their wide, flat, graveled
surfaces, easily grind the feed to a mash before
it is swallowed.
Like humans,
horses get two sets of teeth in their lifetime.
The baby teeth, also called deciduous teeth, are
temporary The first deciduous incisors may erupt
before the foal is born. The last baby teeth
come in when the horse is about 8 months of age.
These teeth begin to be replaced by adult teeth
around age 2 1/2. By age 5, most horses have
their full complement of permanent teeth. An
adult male horse has 40 Permanent teeth. A mare
may have between 36-40, because mares are less
likely to have canine (bridle) teeth.
The
following chart shows the approximate ages at
which different teeth erupt. By referring to it,
you may detect potential abnormalities of your
own horse associated with teething. For more
information, refer to the Official Guide for
Determining The Age of the Horse, published by
the American Association of Equine
Practitioners.
|
Deciduous
(Baby Teeth)
|
| Ist
incisors(centrals) |
Birth or
1st week |
| 2nd
incisors (intermediates) |
4 - 6
weeks |
| 3rd
incisors (corners) |
6 - 9
months |
Ist,
2nd, & 3rd premolars
(cheekteeth) |
Birth or
first 2 weeks for all premolars |
|
Permanent
(Adult Teeth)
|
| 1st
incisors (centrals) |
2 1/2 years |
| 2nd
incisors (intermediates) |
3 1/2 years |
| 3rd
incisors (corners) |
4 1/2 years |
| Canines
(bridle) |
4 - 5 years |
| Wolf teeth
(Ist premolars) |
5 - 6
months |
| 2nd
premolars (Ist cheek teeth) |
2 1/2 years |
| 3rd
premolars (2nd cheek teeth) |
3 years |
| 4th
premolars (3rd cheek teeth) |
4 years |
| 1st molars
(4th cheek teeth) |
9 - 12
months |
| 2nd molars
(5th cheek teeth) |
2 years |
| 3rd molars
(6th cheek teeth) |
3 1/2 - 4
years |
COMMON
DENTAL PROBLEMS
Horses may suffer
from many dental problems. The most common
include:
- Sharp enamel
points forming on cheek teeth, causing
lacerations of cheeks and tongue
- Retained caps
(deciduous teeth that are not shed)
- Discomfort
caused by bit contact with the wolf teeth
- Hooks forming
on the upper and lower cheek teeth
- Long and/or
sharp canine (bridle) teeth interfering with
the insertion or removal of the bit
- Lost and / or
broken teeth
- Abnormal or
uneven bite planes
- Excessively
worn teeth
- Abnormally long
teeth
- Infected teeth
and / or gums
- Misalignment /
poor apposition (can be due to congenital
defects or injury)
- Periodontal
(gum) disease
RECOGNIZING
DENTAL PROBLEMS
Horses with dental
problems may show obvious signs, such as pain or
irritation, or they may show no noticeable signs
at all. That is due to the fact that some horses
simply adapt to their discomfort. For this
reason, periodic dental examinations are
essential. Indicators of dental problems
include:
- Loss of feed
from mouth while eating, difficulty with
chewing, or excessive salivation
- Loss of body
condition
- Large or
undigested feed particles (long stems or
whole grain) in manure
- Head tilting or
tossing, bit chewing, tongue lolling,
fighting the bit, or resisting bridling
- Poor
performance, such as lugging on the bridle,
failing to turn or stop, even bucking
- Foul odor from
mouth or nostrils, or traces of blood from
the mouth
- Nasal discharge
or swelling of the face, jaw, or mouth
tissues
Oral exams should
be an essential part of an annual physical
examination by a veterinarian. Every dental exam
provides the opportunity to perform routine
preventative dental maintenance. The end result
is a healthier, more comfortable horse.
FLOATING
& PREVENTATIVE MAINTENANCE
The process
of rasping or filing a horse's teeth is known as
floating. This is the most common dental
procedure veterinarians perform on horses.
Floating removes sharp enamel points and call
create a more even bite plane. It also helps
keep incisors and cheek teeth at a desirable
length.
When turned out on
pasture, horses browse almost continuously,
picking up dirt and grit in the process, This,
plus the silicate in grass, wears down the
teeth. Stabled horses, however, may not give
their teeth the same workout. Feedings are more
apt to be scheduled, not continuous, and to
include processed grains and hays. Softer feeds
require less chewing. This may allow the horse's
teeth to become excessively long or to wear
unevenly. Adult horse's teeth erupt throughout
their life and are worn off by chewing.
Unfortunately,
cheek teeth tend to develop sharp enamel points
even under normal grazing conditions. Because
the horse's lower jaw is narrower than its upper
jaw and the horse grinds its feed with a
sideways motion, sharp points tend to form along
the edges. Points form on the cheek side of the
upper teeth and the tongue side of the lower
teeth. These points should be rasped to Prevent
them from cutting the cheeks and tongue.
Floating is
especially important in horses who have lost a
tooth, or whose teeth are in poor apposition and
do not fit together well. Normally, contact with
the apposing tooth keeps biting surfaces equal.
When cheek teeth are out of alignment, hooks can
form.
If left unchecked,
these hooks call become long enough to Penetrate
the hard or soft palate. Small hooks can be
removed by floating. Longer hooks are usually
removed with molar cutters or a dental chisel.
WOLF
TEETH
Wolf teeth are
very small teeth located in front of the second
premolar and do not have long roots that set
them firmly in the jaw bone. They rarely appear
in the lower jaw A horse may have one, two, or
no wolf teeth. While not all wolf teeth are
troublesome, veterinarians routinely remove them
to prevent pain or interference from a bit.
THE
AGE FACTOR
The age of a horse
affects the degree of attention and frequency of
dental care required. Consider these points:
- Horses going
into training for the first time, especially
2- and 3-year-olds, need a comprehensive
dental check-up. Teeth should be floated to
remove any sharp points and checked for
retained caps. Caps should be removed if
they have not been shed. This should be done
before training begins to prevent training
problems related to sharp teeth.
- Even yearlings
have been found to have enamel points sharp
enough to damage cheek and tongue tissue.
Floating may improve feed efficiency and
make them more comfortable.
- Horses aged 2-5
may require more frequent dental exams than
older horses. Deciduous teeth tend to be
softer than permanent teeth and may develop
sharp enamel points more quickly. Also,
there is an extraordinary amount of dental
maturation during this period. Twenty-four
teeth will be shed and replaced during this
time, with the potential for 12 to 16 teeth
to be erupting simultaneously. Horses in
this age group should be examined twice
yearly, and any necessary procedures should
be performed.
- Even the best
dental program may not be able to solve or
alleviate all of a young horse's teething
discomfort.
- Mature horses
should get a thorough dental examination at
least once a year whether or not there are
signs of tooth problems.
- It is important
to maintain an even bite plane during a
horse's middle teens in order to ensure a
level grinding surface into its 20s. If you
wait until the horse is in its 20s, the
surfaces may be worn excessively and/or
unevenly, and since the teeth are no longer
erupting at this age, alignment may be
impossible.
DEVELOPING
GREATER AWARENESS
- If a horse
starts behaving abnormally, dental problems
should be considered as a potential cause.
- Teeth should be
floated and maintained as indicated by an
annual examination performed by an equine
practitioner.
- Wolf teeth are
routinely extracted from performance horses
to Prevent interference with the bit and its
associated pain.
- Sedatives,
local anesthetics, and analgesics can relax
the horse and keep it more comfortable
during floating and other dental procedures.
Such drugs should be administered only by a
veterinarian.
- Loose teeth are
generally unhealthy teeth. If your equine
practitioner finds a loose tooth, he or she
will likely extract it. This reduces the
chance of infection or other problems.
- Canine teeth,
generally present in mature geldings and
stallions and sometimes mares, are usually
clipped and filed smooth to Prevent
interference with the bit. This also reduces
the possibility of injury to both horse and
human.
- Depending on
the condition of your horse's teeth, more
than one visit from Your equine practitioner
may be required to get the mouth in prime
working order.
- It is important
to catch dental problems early. Waiting too
long may increase the difficulty of
remedying certain conditions or may even
make remedy impossible.
- Older horses
should have their teeth checked at least
twice yearly.
|