Tips & Tricks

How to Tell a Horse’s Age by Their Teeth

horses' teeth

For horse owners and breeders, knowing the age of a horse is essential for many reasons, including proper nutrition, medical treatment, and training. While some breeds of horses have physical characteristics that indicate their age, such as Arabian horses, many horses do not have these physical markers. Therefore, horse owners and breeders often rely on the horse’s teeth to determine their age. Horses’ teeth can provide a reliable indicator of age, but it requires a keen eye and some knowledge of the different stages of tooth development and wear.

Matching Dental Features with Age (Until 5 years)

Horse teeth, like humans, have two types of teeth: deciduous and permanent teeth. Deciduous teeth, also known as baby teeth, are the first set of teeth that appear in a horse’s mouth. They begin to erupt when the horse is around two weeks old, and by the time the horse is five months old, they have all of its deciduous teeth. Deciduous teeth are smaller and whiter than permanent teeth, and they have smaller roots.

Deciduous Teeth

The first deciduous teeth to erupt are the central incisors, which are located in the front of the horse’s mouth. The next set of teeth to erupt are the lateral incisors, which are located on either side of the central incisors. The next teeth to erupt are the premolars, which are located behind the molars. The final deciduous teeth to erupt are the molars, which are located at the back of the horse’s mouth.

Permanent Teeth

By the time a horse is two and a half years old, they begin to lose its deciduous teeth and replace them with permanent teeth. The first permanent teeth to erupt are the central incisors, which are located in the front of the horse’s mouth. The next set of teeth to erupt are the lateral incisors, which are located on either side of the central incisors. The next teeth to erupt are the premolars, which are located behind the molars. The final permanent teeth to erupt are the molars, which are located at the back of the horse’s mouth.

Matching Dental Features with Age (After 5 years)

Once a horse is five years old, it becomes more challenging to determine its age based on tooth eruption. Instead, horse owners and breeders must rely on the wear and tear of the horse’s teeth to estimate its age. Horses’ teeth are unique because they continue to grow throughout their lives. This growth allows them to wear down their teeth from the constant chewing of hay and grass.

Hypsodont Teeth

Horses have hypsodont teeth, which are teeth that have a long crown that extends above the gum line. This elongated crown allows horses to grind down their teeth without exposing the sensitive pulp inside the tooth. The hypsodont teeth are divided into two types: the incisors and the cheek teeth. The incisors are the teeth located in the front of the horse’s mouth, and the cheek teeth are located at the back of the horse’s mouth.

Estimating Age By Teeth Wear Is Not Completely Accurate

While estimating a horse’s age based on teeth wear can provide a reasonably accurate estimation, it is not always precise. A horse’s rate of teeth wear can vary based on their diet, environment, and chewing habits. Additionally, some horses have genetic differences that affect their teeth, which can make it challenging to estimate their age accurately. Therefore, it is essential to use multiple indicators of teeth wear to provide a more precise estimation of a horse’s age.

Changes In The Shape Of The Horse’s Incisors

The shape of the horse’s incisors can provide a good indicator of its age. As a horse age, its teeth will become more rectangular in shape. This is because the teeth are worn down at the front and back, resulting in a flat surface. As the horse continues to age, the teeth will become more oval-shaped, and the surface will be completely flat. Additionally, the teeth will become darker in color as they age.

Changes Of The Marks On The Chewing Surface

Another indicator of a horse’s age is the changes in the marks on the chewing surface of its teeth. The chewing surface of a horse’s teeth has distinct ridges and valleys that help them to grind down their food. As the horse ages, these ridges and valleys will become smoother and more worn down. Additionally, the enamel on the teeth will become thinner, making it easier for the teeth to wear down.

The Angle Of Incidence of Horse’s Incisors

The angle of incidence of the horse’s incisors can also provide a clue to its age. The angle of incidence is the angle at which the teeth meet each other when the horse’s mouth is closed. As a horse age, the angle of incidence will become more acute. This means that the front teeth will meet each other at a sharper angle. Additionally, the teeth will become more crowded, and the gaps between them will become narrower.

Changes On The Upper Corner Incisor

The upper corner incisor is the tooth located in the back of the horse’s mouth, and it can provide an excellent indication of the horse’s age. As a horse age, the upper corner incisor will become more triangular in shape. Additionally, the tooth will become longer, and the chewing surface will become more worn down.

Conclusion

In conclusion, the age of a horse can be estimated by examining the eruption of its deciduous and permanent teeth, as well as the wear and tear of its teeth after the age of five. While estimating a horse’s age based on teeth wear is not completely accurate, using multiple indicators such as changes in the shape of the incisors, marks on the chewing surface, the angle of incidence, and changes in the upper corner incisor can provide a more precise estimation. It is essential for horse owners and breeders to have a thorough understanding of the development and wear of horse teeth to ensure the proper care and management of their horses.

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