Rabbit and Guinea Pig Dental Disease: The Problem Hay Prevents
If you own a rabbit or a guinea pig, dental disease is the single most likely reason you will end up at the vet. The team at Heights Hospital for Animals in Yorktown Heights, NY sees it constantly, and the frustrating part is how preventable most of it is.
Their Teeth Never Stop Growing
Rabbits and guinea pigs have open-rooted teeth. Every tooth in the mouth, front and back, grows continuously for the animal's whole life. In the wild that makes sense, because a diet of tough, abrasive grass grinds teeth down as fast as they grow, and the two stay in balance.
The balance is the whole story. Take away the abrasive diet and the teeth keep growing anyway. They do not fall out and they do not stop. They grow into shapes they were never meant to have.
What Goes Wrong
The front teeth (incisors) are the ones owners notice, because you can see them. When they misalign, they curve outward or grow into the opposite jaw.
The back teeth (molars) are the real problem, and you cannot see them by lifting a lip. Molars that are not wearing evenly develop sharp points called spurs along the edges. Those spurs cut into the tongue and the inside of the cheek. It is painful in the way a mouth ulcer is painful, and it goes on every time the animal eats.
Overgrown molar roots can also grow the other direction, into the jaw and up toward the eye socket, which is how a dental problem turns into a runny eye or a jaw abscess.
Hay Is The Treatment And The Prevention
The fix is mostly boring and mostly diet:
- Grass hay should be most of what they eat, available all the time, in unlimited quantity. Timothy, orchard, or meadow hay. Alfalfa is too rich in calcium for most adults.
- Pellets are a supplement, not a meal. A small measured portion daily, not a full bowl.
- Fresh greens daily, in variety.
- Treats, fruit, and grain mixes are the problem, not the reward. They are soft, they are sweet, and they displace hay.
The reason hay works is not fiber alone. It is the sideways grinding motion that chewing hay requires, which is the motion that wears molars flat. Pellets are chewed with a different, shorter movement that does not do the same job.
Signs To Watch For At Home
Dental pain in a prey species is quiet by design. Watch for:
- Eating more slowly, or dropping food out of the mouth
- Preferring soft food and leaving the hay untouched
- A wet chin, drooling, or matted fur under the jaw
- Weight loss, or a coat that has stopped looking well kept
- Fewer or smaller droppings
- A runny eye, or a lump along the jaw
- Grinding teeth loudly, or sitting hunched and still
Because these animals hide illness, a rabbit or guinea pig that looks obviously unwell has usually been uncomfortable for a while.
A Pet That Stops Eating Is Urgent
This is the one to remember. A rabbit or guinea pig that has stopped eating can develop gastrointestinal stasis within a day. The gut slows, then stops, and the situation becomes serious quickly. Dental pain is one of the most common triggers.
Do not wait overnight to see whether the appetite comes back. Call us the same day.
Guinea Pigs Have A Second Problem
Guinea pigs, like humans and unlike most animals, cannot manufacture their own vitamin C. Without a reliable daily source they develop scurvy, which shows up as a stiff, reluctant, painful guinea pig that owners often mistake for old age. It also weakens the tissues that hold teeth in place, so vitamin C deficiency and dental disease tend to arrive together. Fresh vegetables plus a supplement where needed handles it, and we will go through the specifics at a visit.
What A Dental Check Involves
A proper look at the molars needs equipment and, for a thorough exam, usually sedation, because the back of a rabbit's mouth is a narrow space and an awake animal will not hold still for it. We check the incisors, examine the molar arcades, look for spurs and ulceration, and take radiographs when we suspect the roots are involved. Spurs are filed down under sedation, not cut, and most animals eat again the same day.
Rabbits and guinea pigs should have an annual wellness exam with a dental check, twice yearly once they are seniors.
Dental disease is the most common thing we treat in these species, and the one where diet changes make the biggest difference. As an exotic pet practice, we are glad to go through your rabbit or guinea pig's setup with you. Schedule an appointment or call us at (914) 962-5579.
