Crate Training
If your 3 or 4-month-old puppy seems to be chewing everything in sight — including you — welcome to teething season. Puppies go through teething twice in their first year, and for many pet parents it's a challenging phase. Understanding what's happening and why makes it much easier to navigate with patience.
The Puppy Teething Timeline
Puppies are born without visible teeth. Around 2 to 3 weeks of age, their baby teeth — called deciduous or milk teeth — begin coming in. In total, they'll develop 28 baby teeth.
Baby teeth start falling out around 12 to 16 weeks, as the 42 adult teeth begin pushing through. Most puppies have their full set of adult teeth by around 8 months of age.
Canines: come in at 3-5 weeks • start falling out at 4-5 months
Incisors: come in at 4-6 weeks • start falling out at 3-5 months
Premolars: come in at 5-6 weeks • start falling out at 4-6 months
Teething tends to be most intense between 4 and 6 months of age.
Signs Your Puppy Is Teething
Watch for: dramatically increased chewing on everything (especially things that smell like you), small blood spots on toys (completely normal), loose or missing baby teeth, increased drooling, hesitation while eating, whining, red or swollen gums, and a low-grade fever. All of these are normal parts of the teething process.
How to Help Your Teething Puppy
Provide Appropriate Chew Toys
Your puppy needs to chew — that's not up for debate. What they chew on is. Durable rubber toys designed specifically for puppies, like KONG Puppy toys, are excellent. They provide satisfying resistance without the risk of breaking into dangerous pieces. Hard rubber teething sticks work well too. Avoid plush toys during teething — they won't hold up, and ingested stuffing is a hazard. Avoid your hands, no matter how gently they're mouthing — see bite inhibition below.
Offer Cold Relief
Cold soothes inflamed, tender gums. Frozen carrots cut into small chewable chunks are a great natural option. You can also freeze a treat inside a KONG toy to make it especially soothing.
Redirect — Never Punish
If your puppy bites on something inappropriate — including you — don't yell or physically correct them. Calmly remove the item or remove yourself, and immediately redirect to an appropriate chew toy. Getting angry and frightening your pup is not a solution and damages the trust you're building. Positive redirection is the only approach that works.
Puppy-Proof During Teething
Hide personal items that smell like you — shoes, clothing, phone chargers — because these are especially tempting. Protect electrical cords. Use gates to keep your puppy out of rooms where there are things they could damage or that could hurt them.
Start Dental Care Habits Now
Teething is a great time to introduce your puppy to oral hygiene. You don't need to brush yet — gums are too sensitive — but gently touching their teeth and gums with a soft finger brush paired with puppy-safe toothpaste helps them get comfortable with the process. This protects their long-term dental health and makes future brushing significantly easier.
Teaching Bite Inhibition
Bite inhibition is your puppy's ability to control the force of their bite. Dogs learn this naturally through play with their littermates — when they bite too hard, the other puppy yelps and play stops. You can reinforce this same lesson.
When your puppy bites you — even gently — make a high-pitched "ouch!" sound, let your hand go limp, and briefly withdraw from interaction. This mimics their littermates' response. Then redirect to a toy. If they bite again, withdraw again. Every family member and visitor must follow the same protocol. Inconsistency confuses your puppy and slows learning significantly.
When to Call the Vet
Teething is usually uncomfortable but routine. Contact your vet if you notice: difficulty eating or dropping food, reluctance to chew on toys, rubbing at the mouth, mouth odor, or a baby tooth that doesn't seem to be falling out even though the adult tooth has come in.
That last situation — called retained deciduous teeth — is particularly common in toy and small breeds. Retained baby teeth can crowd the adult teeth and cause serious dental problems. A vet can often address this at the time of spay or neuter.
Sources: AVMA (American Veterinary Medical Association), VCA Animal Hospitals, Cornell University College of Veterinary Medicine, PetMD, and trusted Veterinarians along Winter's 17-year journey as a dog mom.
The Good Boy Foundation is committed to providing valuable resources and education to empower pet parents in caring for their furry companions. However, it's important to note that the information provided on our website is intended for educational purposes only and should never replace the advice or treatment provided by a licensed veterinarian. While we strive to offer accurate and helpful guidance, we cannot be held responsible for any outcomes or consequences resulting from the application of this information. Pet parents are encouraged to consult with their veterinarian for personalized guidance and recommendations tailored to their pet's specific needs and circumstances.

