Dental Care for Sheep: Teeth Checks, Aging by Teeth, and Feeding Adjustments

Restrain the sheep calmly with good footing and gentle head control. Lift the lips to look at the lower incisors and the dental pad. You are checking for even bite contact, missing teeth, loose teeth, excessive wear, fractures, foul odor, swelling, sores, and feed packed in the mouth.

The lower incisors should meet the upper dental pad evenly. Overshot or undershot jaws can reduce grazing efficiency. If the incisors are very short, splayed, loose, or absent, the sheep may struggle to crop pasture even if it still wants to eat.

Look beyond the teeth too. Mouth pain in sheep is not always a tooth problem. Merck notes that oral lesions from diseases such as contagious ecthyma or bluetongue can reduce feed intake and cause weight loss, drooling, or feed dropping. If you see ulcers, scabs, marked swelling, or multiple sheep affected, contact your vet promptly.

Tooth aging works best in lambs and young adults. Sheep have eight lower incisors and no upper incisors. Lambs start with deciduous, or baby, incisors. According to Merck, the first permanent pair usually erupts at about 1 to 1.5 years, the second at 1.5 to 2 years, the third at 2 to 2.5 years, and the fourth pair by about 2.5 to 4 years.

In practical flock language, a sheep with one pair of permanent incisors is often called a two-tooth, then four-tooth, six-tooth, and finally full mouth once all adult incisors are present. AKC's sheep guidance notes that a solid or full mouth is typically seen up to about 4 years of age.

After full mouth, age estimates become less exact. Wear depends heavily on forage abrasiveness, soil contamination, browsing habits, and nutrition. Older sheep may develop spreaders, where incisors begin to separate and show wear, then broken mouth, where teeth are missing or badly worn, and eventually gummer status if the front incisors are gone.

The biggest issue with poor front teeth is not chewing hay in the back of the mouth. It is harvesting feed in the first place. Sheep with worn or missing incisors often cannot nip short pasture well, so they spend more time trying to eat and may still lose body condition.

This matters most during late gestation, early lactation, winter, drought, and any period when forage is stemmy or sparse. Cornell notes that poor nutrition is a common concern in older ewes with poor teeth, especially when energy needs are high.

Feeding changes usually focus on making intake easier and more reliable. Many older sheep do better with softer, leafy hay; high-quality pasture; chopped forage; soaked hay cubes; or a balanced pelleted ration designed for sheep. Feed changes should be gradual so the rumen can adapt, and mineral choices should always be reviewed with your vet because sheep are sensitive to excess copper.

A broken-mouth sheep is not automatically a welfare failure or a reason for immediate culling. Some animals maintain condition well with the right forage and close monitoring. Others lose weight quickly once pasture quality drops.

Helpful management steps include separating thin sheep from stronger flockmates, offering feed at ground level or in easy-access feeders, checking body condition more often, and watching for quidding, slow eating, or feed refusal. If a sheep is pregnant, nursing, or recovering from illness, the margin for error is smaller.

Your vet may recommend an oral exam if the sheep has one-sided facial swelling, bad breath, pus, blood, sudden feed dropping, or pain when the mouth is handled. Those signs can point to infection, trauma, or oral disease rather than age-related wear alone.

Conservative option: Increase monitoring and improve forage quality without a major ration overhaul. This may include body condition scoring every 2 to 4 weeks, moving the sheep to the best pasture, and offering softer second-cut hay or leafy forage. Typical US cost range is about $20 to $60 per month above baseline feed costs, depending on hay market and whether the sheep is managed individually.

Standard option: Add a planned senior-style management approach for sheep with worn incisors. This often means a flock exam with your vet, targeted deworming or disease review if weight loss is present, and a gradual shift to easier-to-eat forage plus a balanced sheep pellet or concentrate if needed. Typical cost range is about $120 to $300 for the exam and ration review, plus roughly $30 to $90 per month in added feed support.

Advanced option: Use a full workup when weight loss is significant or the cause is unclear. This can include farm-call examination, oral exam with sedation if needed, body condition and fecal testing, bloodwork, and individualized nutrition planning. In some cases, severe dental wear is only part of the problem. Typical cost range is about $300 to $900+, depending on travel, diagnostics, sedation, and local livestock veterinary availability.

See your vet immediately if a sheep stops eating, cannot swallow normally, has marked facial swelling, bleeding from the mouth, severe drooling, fever, or rapid weight loss. Those signs can go beyond routine dental wear.

Prompt veterinary attention is also important if several sheep develop mouth sores at once, especially lambs. Merck describes oral lesions with contagious ecthyma and bluetongue that can interfere with eating and may require flock-level guidance, isolation steps, and supportive care.

Even when the issue seems age-related, a sheep that is thin despite access to feed deserves a full review. Teeth, parasites, chronic disease, lameness, and social competition often overlap.