When do kittens' teeth change and causes of tooth loss in adult cats?


Kittens, like other pets, are born without teeth. As kittens grow older, they develop baby teeth one after another, which are eventually replaced by permanent teeth. The process of the appearance and change of teeth usually goes unnoticed for owners, as it usually takes place without any complications.

Knowledge of the process of changing baby teeth to permanent teeth will allow kitten owners to promptly notice and eliminate possible problems in the kittens’ oral cavity.

Formation of a cat's dental bite.

A kitten's milk teeth begin to erupt from the 2nd week of life and finish erupting by 6-8 weeks of age. In total, by the age of 2 months, a kitten has 26 milk teeth, which form the cat’s bite.

The order of eruption of baby teeth in a cat.

The kitten's incisors are the first to erupt at 2-4 weeks of age. At 3-4 weeks of age, fangs appear. Premolars appear in a kitten at the age of 6-8 weeks.

A kitten's emerging baby teeth are thinner than their permanent teeth. The baby teeth will serve the kitten for several months. If the cat has enough milk, and the kittens are given balanced supplementary feeding in a timely manner, there is no lag in weight gain and development, the replacement of milk teeth with permanent teeth will begin at the age of 3–4 months.

How do baby teeth change to permanent teeth?.

The replacement of baby teeth with permanent teeth in a kitten begins at 3-5 months of age and ends at 7-8 months, when 30 permanent teeth form a permanent molar bite. Constant contact and mechanical irritation causes destruction of the roots of baby teeth, which stimulates loosening and their loss.

The process of replacing baby teeth with permanent teeth is usually painless and goes unnoticed for cat owners.

The resulting permanent dentition in a cat is represented by:

  • 12 incisors (6 incisors each on the lower and upper jaws).
  • 4 fangs (two on each jaw, running along the edges of the incisors).
  • 10 premolars (start behind the canines, with 6 premolars in the upper jaw and 4 premolars in the lower jaw).
  • 4 molars (2 on each jaw). These 4 molars in the cat are missing in the primary dentition.

The order of replacement of baby teeth with permanent teeth.

The replacement of milk teeth with permanent ones in a cat occurs in the same order as the appearance of milk teeth.

  • First, at 4-5 months, the incisors are replaced.
  • Then, at 4-6 months, the fangs are replaced.
  • At 5-6 months, the premolars are replaced.
  • At the end of the 6th month, molars grow.

Milk teeth in kittens

Kittens are born completely toothless. The first milk teeth erupt at the age of two weeks and differ from permanent teeth in their specific structure.

Structural features and differences from permanent teeth

Milk teeth in kittens are straight (in adult cats they are powerful and slightly curved) and have a milky white color (hence the name - milk teeth). In addition, they are sharp, like small needles.

Characteristic features are the primary canines, which erupt by the first month and change closer to five months. They are very thin and curved. In addition, on the inside of each fang there is a clearly visible second tooth, which falls out after the change.

In total, the kitten has twenty-six milk teeth. All of them should be fully formed by the age of two months: twelve incisors, four canines and ten small molars. Below is the dental formula of baby teeth.

For simplicity, veterinarians use dental formulas: incisors are designated by the letter I, canines - C, premolars - P, molars - M

If several or even one tooth is missing by the specified age, you should seek help from a veterinarian, since this problem may become a symptom of a more serious disease.

Table: timing of baby teeth eruption in kittens

TeethNumberingTiming of eruption
IncisorsI2–3 weeks
II2.5–4 weeks
III3–4 weeks
Fangs3–4 weeks
PremolarsII8 weeks
III4–5 weeks
IV4–6 weeks

How is the diagnosis carried out?


The process is not considered an independent disease, but a symptom of a serious disease affecting the body.
The exception is injuries sustained. Diagnostic measures are aimed at determining the cause of such changes.

The veterinarian collects information about the cat’s diet and living conditions and listens to the owner’s complaints.

A visual examination of the pet is also carried out, and additional tests may be prescribed.

Changing baby teeth to permanent ones

At the age of three months, kittens begin to lose their milk teeth, gradually being replaced by molars . This process is usually complete by six or seven months, but don't worry if it takes longer for your kitten. Such deviations are usually associated with the breed of cat or characteristics of individual development.

The order of changing teeth should not be disturbed. The first to be replaced are the incisors, then the canines, and lastly the molars and premolars are replaced.

However, if a new tooth grows on a baby tooth and this causes discomfort to the pet, then you should definitely consult a specialist. If such growth does not bother the animal, then a visit to the veterinarian can be postponed, since baby teeth can calmly and painlessly fall out even after the main shift.

Teeth change schedule

A healthy adult cat should have thirty permanent teeth: twelve incisors, four canines, ten premolars and four molars. Each of them serves her for a specific purpose, for example, incisors are needed to tear food, fangs help to capture prey, and so on.

A cat's permanent dental formula is formed after six months. It includes: on top - three incisors, one canine, three premolars, one molar; below - three incisors, one canine, two premolars, one molar. When calculating, all coefficients are doubled, so the total is thirty permanent teeth.

This is what the jaw of an adult healthy cat should look like with timely and correct teeth replacement.

Table: schedule for the eruption of permanent teeth and their functions

TeethQuantity (lower/upper jaw)Period of eruptionFunction
Incisors6/63.5–4.5 monthsGrabbing
Fangs2/25 monthsTearing
Premolars6/44.5–6 monthsChopping
Molars2/24–5 monthsChopping

Symptoms of tooth change

The process of changing teeth can begin and even end unnoticed by you, since the kitten usually does not experience pain. Most often, the change of teeth becomes obvious when a lost baby tooth is found.

Nevertheless, there are a number of symptoms that will help you navigate and notice in time the process of changing teeth:

  1. When a kitten's teeth change, an unpleasant odor may appear from the mouth, which is often associated with poor nutrition. There is no need to do anything about this, it will quickly disappear once the teeth renewal process is completed.
  2. Kittens may experience discomfort during the actual cutting of new teeth, so the animal's behavior will change slightly. For example, a slight increase in temperature is likely (the norm is a temperature of 38 ° C to 39 ° C, for small kittens a higher temperature of up to 39.5 ° C is typical). As a result, the kitten feels the cold more strongly and tries to spend more time next to the warm body of the owner: on the lap or in the arms. At night, pets can crawl under the covers, even if this was previously uncharacteristic for them.

    If your pet suddenly loves lying under a blanket, this may be a sign of discomfort when changing teeth.

  3. You need to carefully ensure that the kitten does not swallow a lost tooth while eating. If this happens, you should not immediately run to the veterinarian; usually the tooth comes out naturally. However, it can also get stuck in the intestines, causing pain. The kittens then become aggressive and their temperature rises. In this case, you need to contact a specialist.
  4. During the period of teeth change, the pet will more often try to taste everything or chew on it in order to get rid of loose teeth.

    Be very careful that your kitten does not start chewing wires or other objects that could harm him.

  5. From this moment on, cats begin to mark their territory.
  6. Redness of the gums may be observed, which is better to contact a specialist immediately so that chronic inflammation of the oral cavity does not begin.
  7. Sore gums can lead to refusal to eat. This is not a big deal, but if it lasts more than one to two days at most, you should change dry food to wet food, consulting your veterinarian first.

The author of these lines recently encountered the process of changing teeth in his kitten. Each animal exhibits specific symptoms, and when problems arise, it is easy for owners who know their animals to notice changes in behavior. So, my kitten usually did not hide under the blanket and did not play with some toys. When his teeth changed, he constantly chewed rubber sticks and tried to bite the scratching post. In this case, the baby teeth did not fall out immediately, but after the fangs were replaced.

Video: kitten teeth falling out

Treatment method and prognosis

There is no single treatment regimen. Therapy is compiled individually in each specific case and depends on the age of the cat, its state of health and the cause of tooth loss. A lost tooth cannot be restored; the veterinarian’s task is to prevent subsequent losses.

To solve the problem, the specialist makes adjustments to the cat’s diet and prescribes medications to strengthen the teeth and immune system.

Regarding vitamin therapy, we can say that there is no need to give vitamin C in loading doses. In cats, ascorbic acid is synthesized in sufficient quantities, so they do not develop scurvy.

If the animal has tartar, it is removed in the clinic. The procedure is performed under anesthesia, for which premedication is used - the administration of anticholinergic drugs to block vagal reflexes. These drugs cause the least harm to the animal’s body. During the operation, the cat will be conscious, but will not be able to resist.

After recovering from anesthesia, your pet will need quality care, as the procedure is stressful for him.

In parallel with this, treatment is carried out aimed at strengthening the gums and reducing their bleeding. But the main emphasis is on eliminating the underlying disease that caused tooth loss.

Caring for a kitten during the period of teeth change

The period of changing teeth can really become a test for an inexperienced owner. However, it is necessary to understand that the animal is not sick, does not need to take medications and constant visits from veterinarians. Most often, for a cat, everything happens, if not unnoticed, then at least painlessly.

There is no need to allow the kitten to chew furniture, spoil things, and especially not to bite and scratch you. In the future, this habit could become a really serious problem. Changing teeth is a natural process for an animal; therefore, the initially established rules of behavior must be preserved.

However, the task of every responsible owner is to make this period easier for the animal, take care of proper nutrition, brushing teeth and the availability of special toys.

Special food

A kitten needs proper and complete nutrition . However, despite the abundance of food created specifically for the period of teeth change, the animal may react negatively to a sudden change in food. Therefore, you need to ensure that your pet has the necessary vitamins and supplements in its diet, thanks to which permanent teeth will grow strong.

There are nutritional principles that must be followed when a kitten’s teeth change:

  1. First of all, you need to avoid overly soft food: kittens can swallow lost teeth along with soft food, which can lead to damage to the esophagus. The food should be large and slightly rough. Regular dry food for kittens is ideal.

    Dry food is the best option during teeth change

  2. Large pieces of meat (beef, turkey, chicken, rabbit) scalded or boiled, cut into small pieces, are also ideal for a kitten.
  3. You need to include cottage cheese and other fermented milk products that are rich in calcium in your diet.
  4. The kitten needs calcium and phosphorus; they can be given as supplements to the main diet. At the pet store you can find both drops and small tablets that can be added to food. Such supplements also contain a little analgesic so that the kitten does not experience severe pain.
  5. A maximum of twice a week, you can give your kitten low-fat boiled sea fish, for example, hake. However, you should not overuse fish, even though it is rich in phosphorus.
  6. Meat or fish should be given mixed with cereals: oatmeal, buckwheat or rice. It is also useful to add some vegetables, such as carrots, zucchini or pumpkin, both raw and boiled.
  7. The diet should also include sufficient amounts of vitamins A and D.
  8. The kitten will try to chew everything, including your things, so it’s worth purchasing special bones. They contain the necessary vitamin supplements, and in fact the kitten gets the opportunity not only to strengthen its teeth, but also the necessary amount of vitamins supplied with saliva.

    Bones are an important part of the diet and serve to prevent the kitten from chewing your things.

Veterinarians advise not to mix natural food (meat, fish, vegetables, etc.) and dry food. If you switched your kitten to dry food at an early age, then you should stick to it. The fact is that these types of food are digested differently, and when mixed, the kitten may experience bloating or even colic.

When choosing a feeding method, you should consult a veterinarian: each pet is individual, many may not be suitable for dry or natural food

Vaccination during the period of teeth change

Very often, owners are faced with an important question: is it possible to get vaccinations or other vaccinations while changing teeth? Veterinarians speak out unequivocally - changing teeth is already a serious burden for a kitten. Against the backdrop of fever and pain, getting vaccinated can be dangerous. This not only adversely affects the kitten’s immune system, but also leads to stunted growth of the animal.

Vaccination during the period of teeth change is not recommended.

It is important to follow the vaccination schedule for your pets as prescribed by your doctor. The vaccination schedule is set individually, taking into account the age characteristics of the body and physiological state.

My kitten was scheduled for the first vaccination very late. This was due to the fact that he was found on the street and many tests had to be done to assess his health. The time for his vaccination was due to change his teeth, so it had to be postponed for a while (until the temperature passed and slight inflammation of the gums subsided).

Teeth cleaning

Many owners ignore brushing their teeth. However, constant oral care will help keep your animal's teeth strong. It is necessary to accustom your cat to brushing its teeth from the early months of life so that in the future it will adequately perceive this procedure. If the cat refuses to accept traditional brushing with a toothbrush or powder, pet stores sell special gels for disinfecting the oral cavity. You can combine them with special foods and vitamins that include coarse fibers. It is recommended to brush your teeth once every three to four weeks.

Brushing your teeth is an important procedure that your kitten needs to be accustomed to.

During the change of teeth, kittens' gums can become inflamed, so you need to purchase a gel that also contains an anesthetic and anti-inflammatory, which can greatly alleviate your pet's condition.

What should the owner do?

The pet owner must strictly follow the veterinarian's recommendations. Self-medication is unacceptable. In such a situation, the animal may suffer irreparable harm.

The selection of medications and determination of their dosage should be carried out exclusively by a specialist.


The doctor will also tell you about the cat’s nutrition during the treatment period. It is recommended to change the consistency of the food: dry granules injure already inflamed mucous membranes. It is recommended to give preference to soft food.

It is necessary to systematically examine the oral cavity and treat it with a Chlorhexidine solution. In this way, it will be possible to avoid destruction and infection of the enamel and damage to other teeth.

Possible complications during the period of teeth change

Changing teeth is a natural process that can occur without problems for the animal. However, during the period of active growth of molars, you should inspect the animal’s mouth at least once every few days. It is important to consider that reddish and slightly inflamed gums are normal. However, in some cases complications arise. A caring owner should notice the problem in time and be sure to contact a veterinarian.

The most common complications that are visible to the naked eye:

  1. Suppuration of the wound at the site of the lost tooth.
  2. The animal shows anxiety, meows pitifully, and may experience severe lethargy.
  3. The kitten refuses to eat for two days.
  4. Very severe inflammation of the gums.
  5. Wounds appear from a missing milk tooth, in the place of which a permanent tooth has already grown.
  6. Some of the baby teeth have not fallen out, although the permanent ones have already grown in and the time for changing teeth has already passed.

In these cases, you should take the kitten to the clinic or call a doctor at home.

Don't hesitate to contact your veterinarian, even if your pet doesn't show signs of restlessness, lethargy, etc. A healthy animal also needs control, so veterinarians are very loyal to owners who bring healthy animals for examination and ask to monitor the process of changing teeth.

Gum inflammation

Inflammation of the gums is one of the most common complications during the period of teeth change. A little inflammation is normal, but in some cases it lingers and the gums become red.

Inflamed gums become swollen and red

Signs of gum inflammation:

  • the animal is restless;
  • refuses to eat due to painful sensations;
  • tries to chew more;
  • rubs its muzzle against everything in an attempt to relieve pain;
  • profuse salivation occurs;
  • swelling and intense redness are noticeable.

Of course, it is better to have a veterinarian do the diagnosis and treatment, but gum inflammation may go away when the kitten is switched to softer food.

Main symptoms

The clinical picture of tooth loss varies depending on the cause that caused this phenomenon. If a structural unit of the chewing apparatus falls out due to injury, it is enough to treat the wound with a disinfectant solution, and if it does not become infected, the damaged area will heal safely.

The following symptoms are reasons to contact a veterinary clinic:

  • gums swell, redden, bleed;
  • saliva is released abundantly, which is why the cat’s face and neck are constantly wet;
  • ulcers form in the oral cavity;
  • pus in saliva;
  • a foul smell of rotting emanates from the mouth;
  • presence of difficulties with chewing;
  • lack of appetite.

As a rule, the cat’s behavior changes, he becomes restless, apathetic, and loses weight. The animal refuses food, even if it is very hungry. If a cat tries to eat, he does it very carefully and slowly, as chewing causes him discomfort. As a rule, he also refuses water.

The owner should observe the condition of the animal; it is advisable to write down changes in order to tell the veterinarian about them. This will greatly facilitate diagnosis and determine treatment.

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