Greenberg Stables, Conroe TX ~ Tyrone's Horse Blog

Dental Problems

August 5, 2010

Common Equine Dental Problems

When your veterinarian begins describing your horse’s oral anatomy--or what might be abnormal about it--you may feel as if you need an interpreter. Sure, some terms such as “overbite” and “underbite” correspond roughly with those in human dentistry and are easy enough to understand. But visualizing a “wave mouth” or a “step mouth” can be difficult. Even if your veterinarian helps you peer into your horse’s mouth, it can be tricky to recognize bite or wear abnormalities, particularly when they affect the teeth in the farthest reaches of the mouth. To help you become a better partner in your horse’s care, we’ve illustrated the most common equine dental abnormalities. If you review them now, the next time your veterinarian visits for a dental exam, you’ll know exactly what he’s talking about.

Malocclusions
Malocclusions that stem from jaw conformation are nearly always present at birth but are not necessarily inherited. Minor malformations may have no effect on a horse’s immediate ability to eat, but all misalignments eventually affect the wear pattern on other teeth, making regular dental care essential.

An overbite (parrot mouth, brachygnathism) is a congenital deformity in which the upper incisors overlap the lower incisors.

An underbite (monkey mouth, sow mouth, prognathism) is a deformity in which the lower incisors extend beyond the upper incisors.

Dorsal curvature (frown) occurs when the outer corner upper incisors grow longer than the opposing teeth below. In ventral curvature (smile), the outer corner lower incisors grow longer than the opposing teeth above. Both misalignments are usually caused by retained baby teeth or abnormal chewing.

A diagonal bite may result from a malocclusion or pain in the cheek teeth that causes a horse to grind feed primarily in one direction.

Abnormal Wear Patterns
The following dental problems and abnormal wear patterns require the attention of a veterinarian.

Hooks--sharp protrusions that develop on teeth when an overbite, underbite or other dental deformity causes an imperfect meeting of the top and bottom arcades. Most common on the upper first cheek tooth and lower last molar.

Ramps--typically premolars with a surface that slopes like a ski jump. Ramps can cut or scrape the tongue or cheek, especially when a horse is bitted.

Step mouth--a cheek teeth row with one molar that has grown unopposed so it juts above the rest of the arcade. A gap in the opposite molar lineup usually initiates the abnormality.

Wave mouth--a severely restricting abnormality that occurs when two or more teeth in an arcade are high, creating a series of ascending and declining grinding surfaces.

Shear mouth--a dental configuration in which the molars’ grinding surfaces are worn at a sharp 60- to 75-degree angle. Normally, the angle is 15 degrees.

This article originally appeared in the November 2006 issue of EQUUS magazine.

 

How to Cool an Overheated Horse

August 5, 2010

How to Cool an Overheated Horse

Cooling out your horse after a hard workout is a very important part of horse ownership. This article will teach you how to cool an overheated horse in the summer and in the winter, as the proper way to cool out a horse varies with the seasons.

In the summer: After a long summer ride, your horse may be breathing heavy and sweating profusely. Take the time to end your ride with 5-10 minutes of walking to let the horse begin to catch their breath.

Aft...


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A hot humid day. One rider. One horse. Both are exercising at a moderate level. Who is more likely to overheat?

August 2, 2010
by Teresa Pitman, University of Guelph

A hot humid day. One rider. One horse. Both are exercising at a moderate level. Who is more likely to overheat?

It might surprise you to know that your horse gets hotter, much faster than you and is more susceptible to the negative effects of heat stress.

Michael Lindinger, PhD, MSc, an animal and exercise physiol...


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Lien for Texas Large Animal Vets to Take Effect September 1, 2009

January 12, 2010
I found the following blog entry at Equine Law Blog (click here to visit) by Alison Rowe in Waxahachie, Texas

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Beginning September 1, 2009, all large animal veterinarians in the state of Texas will have a lien on treated animals to secure payment of vet bills. This lien will be effective both before and after the animal is released to the owner.

Pri...


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