This illustration shows a 7-year-old horse’s top teeth with his mouth open. A 7-year hook is present on the caudal occlusal surface of the corner incisor at seven years of age. The occlusal surface of the central incisor is level. On the intermediate incisor, the cup is gone. The dental cup is still present on the corner incisors only.

This diagram is copyrighted by Equine Network LLC, the parent company of My Senior Horse. It is from the Illustrated Atlas of Clinical Equine Anatomy and Common Disorders of the Horse.

Further Reading