How Many Teeth Does a Dog Have and What Foods Are Safe to Chew?
Learn how many teeth a dog has at each life stage and discover which human foods are safe for your dog's dental health, with portion guides by weight.
How Many Teeth Does a Dog Have? A Complete Count by Life Stage
If you've ever wondered how many teeth does a dog have, the answer depends on age. Puppies develop 28 deciduous (baby) teeth between 3 and 6 weeks of age, which are eventually replaced by 42 permanent adult teeth by around 6–7 months, according to the Merck Veterinary Manual. That's ten more teeth than adult humans, who have 32.
Understanding your dog's dentition matters for more than trivia — it directly impacts which human foods are safe to offer as treats, how to size food pieces to prevent choking or tooth fractures, and which textures support dental health versus those that accelerate plaque buildup.
With 42 adult teeth designed for tearing and grinding, dogs can handle many whole foods. However, portion size, preparation, and your dog's specific dental condition (missing teeth, periodontal disease, puppy teething) dictate what's safe. Always size pieces appropriately for your dog's weight class and dental health status.
The Adult Dog Tooth Breakdown: What Each Type Does
Your dog's 42 teeth are distributed across four functional types, each relevant to how they process food:
| Tooth Type | Count | Function | Food Implications |
|---|---|---|---|
| Incisors | 12 (6 upper, 6 lower) | Nibbling, gripping, grooming | Can pick up small pieces like blueberries or diced carrot |
| Canines | 4 (2 upper, 2 lower) | Puncturing, holding, tearing | Used to grip larger items like apple slices or jerky strips |
| Premolars | 16 (8 upper, 8 lower) | Shearing, ripping | Carnassial teeth (upper 4th premolar, lower 1st molar) crush hard items |
| Molars | 10 (4 upper, 6 lower) | Grinding, crushing | Process fibrous foods like sweet potato or celery |
The AKC notes that the carnassial teeth are the most commonly fractured teeth in dogs, typically from chewing objects harder than the tooth enamel. This is why bone density and food hardness matter enormously when choosing safe chews and treats.
Safe Human Foods for Dogs: Dental-Friendly Options by Texture
Not all human foods interact with your dog's 42 teeth the same way. We've categorized safe options by texture and how they engage your dog's dentition.
Crunchy Raw Vegetables (Dental-Scraping Benefit)
Crunchy vegetables can mechanically disrupt plaque on the buccal (outer) surfaces of premolars and molars. They won't replace brushing, but they provide mild abrasive action.
- Small dogs (under 20 lb / 9 kg): 1–2 baby carrots, halved lengthwise
- Medium dogs (20–50 lb / 9–23 kg): 1 medium carrot, cut into 2-inch pieces
- Large dogs (over 50 lb / 23 kg): 1 large carrot, whole or in 3-inch segments
Nutrition per 100g: 41 kcal, 10,190 IU vitamin A (as beta-carotene), 3.6g fiber, 6.9mg vitamin C. Low glycemic index — safe for diabetic dogs in portion.
Preparation: Wash thoroughly. No peeling required. Cut to appropriate size to prevent tracheal choking in small breeds. Serve raw for dental benefit; steamed if your dog has missing teeth or advanced periodontal disease.
- Small dogs: 2–3 thin slices (approx. 2 tablespoons diced)
- Medium dogs: ½ medium apple, sliced (approx. ¼ cup)
- Large dogs: 1 medium apple, sliced (approx. ½ cup)
Nutrition per 100g: 52 kcal, 5.3mg vitamin C, 2.4g fiber, 107mg potassium. Apple seeds contain amygdalin (a cyanogenic glycoside) — always remove the core and seeds. The ASPCA confirms apple flesh is safe while seeds pose a risk in large quantities.
Preparation: Wash, core, remove all seeds and stem. Slice into pieces your dog can grip with canines and shear with premolars. No added sugar, cinnamon in tiny amounts is safe but unnecessary.
- Small dogs: 1 tablespoon finely diced celery
- Medium dogs: 1 stalk, cut into 1-inch pieces
- Large dogs: 1–2 stalks, cut into 2-inch pieces
Nutrition per 100g: 16 kcal, 1.6g fiber, 260mg potassium, 29.3µg vitamin K, 3.1mg vitamin C. Extremely low calorie — ideal for overweight dogs on dental-supportive treats.
Preparation: Wash. Remove the stringy outer ribs for small dogs (choking hazard — strings can wrap around molars or lodge in the throat). Cut across the grain into manageable pieces.
Soft Proteins (Easy on Compromised Dentition)
For dogs with periodontal disease, missing teeth, or puppies under 6 months still cycling through their 28 baby teeth, soft protein sources provide nutrition without requiring heavy molar grinding.
- Small dogs: ¼–½ egg per serving (1–2 times per week)
- Medium dogs: ½–1 whole egg per serving
- Large dogs: 1–2 whole eggs per serving
Nutrition per large egg (50g): 72 kcal, 6.3g protein, 5g fat, 293mg leucine, 270mg choline, 0.6µg vitamin B12, 41 IU vitamin D. Eggs are among the most bioavailable protein sources available — the amino acid profile closely matches canine requirements.
Preparation: Always cook thoroughly (scrambled, hard-boiled, or poached with no oil or seasoning). Raw egg whites contain avidin, which binds biotin and can cause deficiency with chronic feeding. Cooking denatures avidin. No butter, salt, pepper, or onion/garlic additions.
When NOT to feed: Dogs with egg protein allergy (uncommon but documented — signs include ear inflammation, paw licking, GI upset within 2–12 hours). Dogs with pancreatitis should only receive egg whites due to fat content in yolks.
- Small dogs: 1–2 tablespoons shredded chicken
- Medium dogs: ¼–⅓ cup shredded chicken
- Large dogs: ½–¾ cup shredded chicken
Nutrition per 100g cooked breast: 165 kcal, 31g protein, 3.6g fat, 22mg niacin (B3), 0.6mg vitamin B6, 24µg selenium. Excellent for dogs needing lean protein or those with food sensitivities to beef or lamb.
Preparation: Boil, bake, or poach with zero seasoning. Internal temperature must reach 165°F (74°C). Remove all bones — cooked chicken bones splinter into sharp shards that can perforate the esophagus, stomach, or intestines. Shred into bite-sized pieces appropriate for your dog's incisor grip.
Fruits with Dental Considerations
- Small dogs: 2–3 blueberries (approx. ½ teaspoon)
- Medium dogs: 5–8 blueberries (approx. 1 tablespoon)
- Large dogs: 10–15 blueberries (approx. 2 tablespoons)
Nutrition per 100g: 57 kcal, 9.7mg vitamin C, 2.4g fiber, 14.4µg vitamin K, high anthocyanin content (antioxidants). Small enough that incisors can manage them; frozen blueberries provide mild numbing relief for teething puppies.
Preparation: Wash. Serve whole — no cutting needed for most dogs. For very small breeds (under 10 lb / 4.5 kg), lightly crush to prevent aspiration. Frozen blueberries can be used in a Kong for enrichment.
Foods That Can Damage Your Dog's Teeth — Avoid These
With 42 teeth working under significant bite force (dogs generate 200–450 PSI depending on breed), certain human foods create fracture risk or other dental damage:
| Food / Item | Risk Level | Why It's Dangerous | Safer Alternative |
|---|---|---|---|
| Cooked bones (any type) | EXTREME | Splinter into sharp fragments; slab fractures of carnassial teeth; GI perforation | Carrot sticks, dental chews (VOHC-approved) |
| Ice cubes (large) | HIGH | Hardness exceeds tooth enamel tolerance; common cause of crown fractures in premolars | Crushed ice or shaved ice in water |
| Hard candy, lollipops | HIGH | Tooth fractures; xylitol-containing candy is acutely toxic | Frozen blueberries, carrot sticks |
| Popcorn kernels (unpopped) | MODERATE | Lodge between teeth and gumline; cause periodontal abscesses; hull fragments irritate | Plain air-popped popcorn (fully popped), small quantities |
| Weight-bearing bones of large animals | HIGH | Denser than tooth enamel; slab fractures of 4th premolar are common surgical emergencies | Edible soft chews, rubber chew toys with grooves |
If your dog fractures a tooth, you may notice: sudden reluctance to chew, dropping food, pawing at the mouth, facial swelling, or a visible crack line. Tooth fractures exposing the pulp cavity require veterinary attention within 24–48 hours to prevent abscess formation.
How to Introduce New Foods Safely: A Step-by-Step Protocol
Regardless of how many teeth your dog has or how healthy their dentition appears, introducing any new human food requires a systematic approach to catch adverse reactions early:
- Day 1 — Micro-portion test: Offer ¼ of the recommended serving size. For example, if the full serving for your medium dog is ½ apple, start with ⅛ apple (one thin slice).
- Monitor for 24 hours: Watch for vomiting, diarrhea (note consistency and frequency), excessive lip licking (nauseia sign), hives, facial swelling, or ear redness.
- Day 2 — Quarter-portion: If no reaction, increase to ¼ of the full serving. Continue monitoring.
- Day 3 — Half-portion: Increase to 50% of the recommended serving.
- Day 4+ — Full serving: If no adverse signs through Day 3, you can offer the full recommended portion 2–3 times per week as a treat (treats should not exceed 10% of daily caloric intake, per the AVMA).
- Single-ingredient rule: Only introduce ONE new food at a time. Wait 5–7 days between new food introductions so you can identify the culprit if a reaction occurs.
When NOT to Feed Human Foods: Dogs at Higher Risk
Some dogs should avoid most human food treats entirely or require veterinary nutritionist guidance:
- Puppies under 12 weeks: Their 28 deciduous teeth are fragile, and their GI tracts are immature. Stick to puppy-formulated food and treats.
- Dogs with chronic kidney disease (CKD): Many fruits and vegetables are high in potassium or phosphorus, which can worsen CKD. Carrots and apples are typically safe in small amounts, but consult your vet first.
- Dogs with diabetes: Fruit sugars (fructose) spike blood glucose. Stick to low-glycemic options like celery, cucumber, and green beans. Avoid apples, bananas, and mangoes.
- Dogs with pancreatitis: High-fat proteins (even chicken thighs with skin) can trigger flare-ups. Use only boiled, skinless chicken breast or egg whites.
- Dogs with advanced periodontal disease (Stage 3–4): Pain from loose teeth or oral infection makes crunching painful. Offer only soft foods — scrambled eggs, mashed sweet potato, shredded chicken in broth.
- Dogs on prescription diets: Adding human foods may alter the carefully calibrated nutrient ratios. Check with your veterinarian before supplementing.
- Vomiting more than twice in 24 hours after eating a new food
- Bloody diarrhea or black, tarry stools
- Facial swelling, hives, or difficulty breathing (anaphylaxis — this is an emergency)
- Sudden refusal to eat, drooling excessively, or pawing at the mouth (possible tooth fracture or oral foreign body)
- Lethargy combined with any GI symptoms lasting more than 12 hours
- Signs of bloat: distended abdomen, unproductive retching, restlessness (GDV is a life-threatening emergency — go to the nearest emergency clinic immediately)
ASPCA Animal Poison Control: (888) 426-4435 (24/7, consultation fee applies)
Pet Poison Helpline: (855) 764-7661
Frequently Asked Questions
How many teeth does a dog have compared to a cat?
Adult dogs have 42 teeth, while adult cats have 30. Dogs have more molars and premolars, reflecting their evolutionary role as both hunters and scavengers who needed to process a wider variety of food textures, including crushing bone and grinding plant matter.
Do dogs lose teeth like humans do?
Yes. Dogs are diphyodont, meaning they have two sets of teeth. The 28 deciduous teeth erupt between 3–6 weeks and are replaced by 42 permanent teeth between 3–7 months. Retained deciduous teeth (baby teeth that don't fall out) are common in small breeds like Chihuahuas, Yorkshire Terriers, and Pomeranians, and may require veterinary extraction to prevent crowding and periodontal disease.
Can I feed my dog crunchy human foods if they have missing teeth?
It depends on how many teeth remain and which ones are missing. Dogs can compensate remarkably well — even dogs that have had full-mouth extractions (common in severe feline stomatitis, occasionally in dogs) can eat dry kibble. However, if your dog is actively painful or recently had extractions, stick to soft foods for the recovery period your vet recommends (typically 7–14 days post-surgery).
What happens if my dog eats too much of a safe food?
Even safe foods in excessive amounts cause GI upset. Too much fiber (from vegetables) leads to loose stools and gas. Too much fruit sugar causes osmotic diarrhea. Too much protein (eggs, chicken) in an otherwise balanced diet can cause caloric excess and weight gain. As a rule, treats — including human foods — should comprise no more than 10% of your dog's daily caloric intake.
Are there any human foods that are toxic to dogs that I might confuse with safe options?
Yes. Key toxic foods that sometimes get confused with safe alternatives include: grapes and raisins (acute kidney failure — no safe dose exists), onions, garlic, chives, and leeks (Allium species — hemolytic anemia), xylitol (artificial sweetener — hypoglycemia and liver failure), macadamia nuts (neuromuscular weakness), and chocolate (theobromine toxicity — darker chocolate is more dangerous). If your dog ingests any of these, contact the ASPCA Poison Control at (888) 426-4435 or your emergency vet immediately.
How can I tell if a chew or food is too hard for my dog's teeth?
Use the thumbnail test: if you cannot make an indentation in the item with your thumbnail, it's too hard for your dog's teeth. This eliminates most antlers, nylon bones, weight-bearing beef bones, and hooves. The Veterinary Oral Health Council (VOHC) maintains a list of approved dental chews and diets that have demonstrated plaque and calculus reduction in clinical trials — these are formulated to be hard enough to provide mechanical cleaning but not so hard as to fracture teeth.
My puppy is teething — what human foods can soothe their gums?
During the 3–7 month teething window, frozen items provide soothing cold therapy: frozen blueberries, frozen banana slices (thin rounds, no peel), frozen carrot sticks, or a frozen washcloth twisted into a rope. Avoid hard ice cubes, which can crack developing adult teeth. Supervise all frozen treats and remove any pieces small enough to swallow whole.
Jonas Cole
All our authors care for dogs every day — read more of their work on the authors page.
