When a dog loses a canine tooth, the outcome depends on how it was lost. A cleanly extracted canine heals well and most dogs adapt within a few weeks, eating and playing normally. But a canine that breaks, falls out from disease, or gets knocked loose can lead to infection, bone damage, and pain that dogs are surprisingly good at hiding. Canine teeth are the longest-rooted teeth in a dog’s mouth, so losing one is a bigger deal than losing a small premolar.
What Canine Teeth Actually Do
Dogs have four canine teeth, the long, pointed ones just behind the incisors. They’re used to grip food, hold toys, and tear through tougher textures. But they also serve a structural role that surprises many owners: the lower canines help hold the tongue in place inside the mouth. When one or both lower canines are missing, the tongue can slip out to that side and hang there. This is especially common in small breeds like Chihuahuas and Yorkshire Terriers, where dental disease and tooth loss happen more frequently.
The condition is sometimes called “hanging tongue syndrome,” and while it looks endearing, it can cause the tongue to dry out or become irritated. Dogs with this issue generally do fine, but they may need some dietary adjustments to eat comfortably.
How Dogs Typically Lose a Canine Tooth
The most common cause is periodontal disease. Gum disease in dogs progresses through four stages, and by stage three, a tooth may have lost so much bone support that extraction is the only option. By stage four, the tooth may already be loose or falling out on its own. Periodontal disease is the single most common clinical condition in adult dogs, so this scenario is far from rare.
Trauma is the other major cause. A hard chew toy, a fall, or a collision can fracture or knock out a canine. When the tooth breaks deeply enough to expose the pulp (the living tissue inside containing nerves and blood vessels), bacteria can enter and cause infection. That infection starts as inflammation inside the tooth, eventually kills the pulp tissue, and then spreads into the jawbone surrounding the root. This is a tooth root abscess, and it’s painful even when a dog doesn’t show obvious signs.
Signs Your Dog Is in Dental Pain
Dogs rarely stop eating entirely because of a painful tooth. Instead, the signs are subtle. Watch for slower chewing, dropping food mid-bite, a sudden preference for softer foods, or turning away from hard treats they used to love. Some dogs drool more than usual or paw at one side of their mouth. Others become head-shy, pulling away when you try to touch their face or muzzle. Any of these changes, especially if they appear around the time a tooth looks damaged or goes missing, point toward dental pain.
Broken Canine vs. Fully Lost Canine
A canine that’s completely gone, whether it fell out or was surgically extracted, leaves an empty socket that the gum tissue will close over. The bigger concern is a canine that broke but left a root fragment behind. Retained roots can harbor bacteria and develop abscesses below the gumline where you can’t see them. Dental X-rays are the only reliable way to confirm whether the root came out with the crown.
If a canine fractures and the pulp is exposed, there are two main treatment paths. Veterinary dentists generally prefer root canal therapy when the surrounding bone and gum tissue are still healthy, because it preserves the tooth’s function for the rest of the dog’s life and is less invasive than extraction. If the tooth has already lost significant bone support from gum disease, extraction is the better choice. Either way, treatment should happen promptly. Leaving an exposed pulp untreated virtually guarantees infection.
What Extraction Involves and Costs
Canine teeth have long, deep roots, so their extraction is almost always classified as surgical rather than simple. A simple extraction averages around $78 per tooth nationally, while a complex or surgical extraction averages about $130 per tooth. Those figures typically include the exam but not anesthesia, dental X-rays, or the pre-extraction cleaning most vets recommend to get a clear view of every tooth. The total bill for a canine extraction, once anesthesia and imaging are factored in, is often several hundred dollars.
Root canal therapy costs more upfront but saves the tooth. It’s performed by a veterinary dental specialist and is worth discussing if the canine is otherwise healthy.
Recovery After Extraction
Soft tissue healing begins immediately and progresses well over one to two weeks in straightforward cases. During that window, most vets recommend a soft diet: canned food, soaked kibble mashed with a fork, or pâté-style wet food. Hard treats, dental chews, antlers, bully sticks, and bones are all off-limits until your vet confirms the extraction site has healed. Chew toys are typically restricted for about two weeks as well.
One specific complication to be aware of with upper canine extractions: the roots of the upper canines sit very close to the nasal cavity. If the thin wall of bone between them is damaged during extraction or doesn’t heal properly, it can create an oronasal fistula, a small opening between the mouth and the nasal passage. This is a recognized complication of upper canine removal and may cause sneezing, nasal discharge, or food coming out of the nose. It requires a surgical repair but is manageable when caught early.
Long-Term Life Without a Canine Tooth
Most dogs adjust remarkably well. A missing canine doesn’t prevent a dog from eating kibble, playing fetch, or living a completely normal life once the extraction site heals. Dogs have 42 teeth, and the molars and premolars do the heavy lifting when it comes to chewing food. The canines are more about gripping and tearing, functions most pet dogs don’t rely on heavily day to day.
The most noticeable long-term change tends to be cosmetic or quirky rather than medical. If a lower canine is missing, the tongue may poke out on that side, especially when the dog is relaxed or sleeping. Some dogs develop a permanent lopsided tongue that becomes part of their look. It doesn’t cause pain, though you may want to keep an eye on the exposed tongue in very cold or dry weather to prevent it from drying out and cracking.
Feeding Adjustments
If your dog is missing just one canine, you likely won’t need to change their diet at all after the healing period ends. Dogs missing multiple teeth, including canines, sometimes struggle to pick up or grip certain food shapes. In those cases, soaking dry kibble in warm water for a few minutes and mashing it makes a big difference. Pâté-style canned food, stews with extra broth, and soft-cooked vegetables like carrots or green beans are all easy options. It’s worth experimenting to see what texture your dog handles best, since some dogs prefer slightly chunky food they can tongue against the roof of their mouth, while others do better with something closer to a purée.