In a 20-year-old horse, the Galvayne’s groove of a horse’s teeth extends the entire labial surface length of the upper corner incisor. The occlusal surfaces of the lower arches should all be worn and compressed. The upper and lower incisors should meet in a very oblique arch.

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 Teeth Reading