10/04/2026
S e n i o r H o r s e D i s e a s e
As a vet dedicated to dentistry something I diagnosis frequently is EOTRH. A painful, progressive dental disease in older horses that breaks down tooth structures.
In the early stages owners may notice reluctance to bite into carrots, reduced grazing or changes in temperament. Many owners however won’t notice anything - horses are hardwired to eat through pain and it can be such a slow deterioration it’s difficult to notice a change that happens over years. Due to the age of these horses (15 years plus) owners may also put changes down to them “being old”, “slowing down” or arthritis.
The early stages of disease can be seen on x-rays as the tooth starts being reabsorbed at the root, in the later stages (like my photo) it becomes increasingly visible with gum inflammation/regression, periodontal ligament loss making the teeth move and excessive cementum buildup (calcified material builds up as the base of the tooth like a bulb).
Fortunately we have a very effective and life changing treatment for these older horses - extracting the affected teeth removes the pain and transforms the horse’s quality of life. In some cases this can mean extracting all the incisors - while this can seem dramatic, the most dramatic thing is always the difference in these horses afterwards. Owners often haven’t been able to appreciate the impact these teeth are having until they aren’t and their horse has a new lease of life!
If I suspect EOTHR with the owners consent I will refer these cases to one of the super referral hospitals we have in the area - whilst it’s preferable for them to see these horses in a hospital setting, if travelling isn’t an option these referrals can be done on the yard.
*EOTRH is shorthand for Equine Odontoclastic Tooth Resorption and Hypercementosis