How many teeth do we have?

How many teeth do we have? A normal adult human have 32 teeth. Adult teeth include 8 incisors, 4 canines, 8 premolars, and 12 molars. Wisdom teeth erupt at around age 18, but are mostly surgically removed to prevent displacement of other teeth.

Adult teeth include incisors, canines, premolars, and molars:

8 incisors Your four front teeth on the top and bottom are sharp for holding and slicing food. Incisors also aid you sense the texture and kind of food you eat.
4 canines or cuspids The pointed teeth on the top and bottom are called cuspids or canine teeth. They have cusps for grabbing and tearing down food.
8 premolars These teeth are between the canines and molars both physically and in form. Premolars look exactly like molars but they have two cusps and are sometimes called bicuspids. Premolars cut and tear food.
12 molars You have eight molars on top and bottom. They have broad chewing surfaces to grind down food before it’s finally swallowed. This includes wisdom teeth, your third set of molars, which can show up as late as your early 20s and are often removed.

Parts of teeth:

Parts of the teeth include:

Enamel The hardest, white outer part of the tooth. Enamel is mostly made of calcium phosphate, a rock-hard mineral.
Dentin A layer underlying the enamel. It is a hard tissue that contains microscopic tubes. When the enamel is damaged, heat or cold can enter the tooth through these paths and cause sensitivity or pain.
Pulp The softer, living inner structure of teeth. Blood vessels and nerves run through the pulp of the teeth.
Cementum A layer of connective tissue that binds the roots of the teeth firmly to the gums and jawbone.
Periodontal ligament Tissue that helps hold the teeth tightly against the jaw

Why Do We Have Wisdom Teeth?

Sometime between ages 17 and 21, most adults will develop their third set of molars. These molars are more commonly called wisdom teeth.

Teeth are categorized by their placement and function. The sharper teeth can tear food into smaller pieces and the flatter teeth grind food down. Wisdom teeth are the flatter kind of teeth, called molars. Molars are all the way in the back of your mouth. Adults get three sets of molars on top and bottom, and on both sides of the mouth.

From infancy through early adolescence, humans develop their first set of teeth, lose them, and get a whole new set again. There’s a brief pause and then again, in early adulthood, the final set of teeth emerge.

They’re called wisdom teeth because they’re the last teeth to emerge. You’re presumably “wiser” when these teeth come in.

Having too many teeth, or overcrowding, can cause:

  • misaligned teeth
  • increased decay
  • impacted wisdom teeth
  • risk for periodontal disease
  • This is why many people have their wisdom teeth removed.

Why are wisdom teeth removed?

Problems associated with wisdom teeth include:

  • crooked teeth
  • crowded teeth
  • wisdom teeth growing in sideways
  • increased tooth decay
  • jaw pain
  • cysts under the gums and possibly tumors

The American Dental Association indicates that removal will be necessary if any of the above changes are apparent.

It’s recommended that teenagers be evaluated for wisdom teeth removal surgery. People who get their wisdom teeth removed at a younger age tend to heal better from surgery, before the roots and bone have fully formed. This can help avoid any potential problems before they start.

How many teeth do babies and adults have?

A child gets two sets of teeth. The first set, baby teeth, starts to grow when the child is a baby. The second and last set grows in at school age. They are the permanent teeth. Permanent teeth should last a lifetime.

A child grows his first baby tooth at about 7 months of age. It is usually a front one.

A baby who is poorly nourished, however, may not grow his first tooth until later. Do not wait for the first tooth before giving him the extra soft food he needs to grow and stay healthy.

  • The remaining baby teeth grow in over the next 24 months. By the time the child is 30 months old, there will be a total of 20 baby teeth in his mouth, 10 on top and 10 on the bottom.
  • Most permanent teeth form under the baby teeth. When the child is between 6 and 12 years old, the permanent teeth push against the roots of the baby teeth, making them fall out. Not all of the baby teeth fall out at once. One tooth at a time becomes loose, falls out, and then is replaced with a permanent tooth. The new tooth may not grow in immediately. Sometimes 2 or 3 months pass before the new tooth grows into the space.

In the 6 years between ages 6 and 12, the 20 permanent teeth replace the 20 baby teeth. In addition, 8 other teeth grow in behind the baby teeth.

At 6 years, the 4 first permanent molars start to grow in at the back of the mouth. This means an 8-year-old child should have 24 teeth, or spaces for them.

At 12 years, the 4 second permanent molars grow in behind the first molars. This means a 14-year-old child should have 28 teeth, or spaces for them.

Between 16 and 22 years, the 4 third permanent molars grow in. This means that an adult usually has a total of 32 permanent teeth: 16 on top and 16 on the bottom.

Teething in a child:

Teething is an exciting and important milestone in your baby’s life. It means that soon your child will be able to start eating a variety of new foods. For your baby, however, it’s often not such a pleasant experience.

Since all children go through it at some point, teething is one of the most common sources of concern for new parents. Every baby experiences different symptoms during teething. The most common symptoms are irritability and loss of appetite.

Some parents report more serious symptoms of teething like vomiting, fever, and diarrhea. Whether or not vomiting is actually caused by teething is controversial. However, there’s no research available to support the link between vomiting and teething. Most experts agree that while localized soreness and pain may occur, teething doesn’t cause symptoms elsewhere in the body, like rash, vomiting, and diarrhea.

Other symptoms of teething

Babies might also show some of the following symptoms when they begin teething:

  • chewing
  • drooling
  • changes in feeding frequency or amount
  • crying
  • irritability
  • inability to sleep
  • loss of appetite
  • red, tender, and swollen gums

Can teething symptoms be managed?

To ease the discomfort and tender gums, you can try massaging or rubbing the gums with your fingers or give your infant a cool teething ring or a clean washcloth to chew on. If your infant is chewing, you can try to give them healthy things to chew, like raw fruit and vegetables — as long as you are sure pieces cannot break off and cause choking. You should also stay close by in case they choke.

Don’t give your child pain relievers or medication that you rub on their gums, like viscous lidocaine or benzocaine products. These types of medications can be harmful for your baby if swallowed. The FDA warns against using these medications for teething due to the risk of overdose.

Symptoms of an overdose include:

  • jitteriness
  • confusion
  • vomiting
  • seizures

If your child is vomiting, it’s probably not because of teething. Consult your pediatrician.

Take care of your teeth

You get two full sets of teeth over your lifetime. As a baby, you have 20 teeth, and as an adult you should have 32 teeth.

Among the 32 teeth, each has its own function in the chewing and eating process. Take good care of your teeth and keep your gums healthy in order to avoid cavities and other overall health issues.
To help maintain a healthy mouth, the best way to take care of teeth is by brushing and flossing regularly.
The American Dental Association and the American College of Prosthodontists recommend:

  1. placing the toothbrush at a 45-degree angle so that it touches the gums and teeth.
  2. paying particular attention to the gums and the molars.
  3. brushing for at least 2 minutes

When flossing:

  1. use 16–18 inches of floss and wrap it around the fingers
  2. gently thread the floss between the teeth until it meets the gums and move it up and down
  3. use a clean section of floss every two teeth
    When people first start to floss, they may notice that their gums bleed.
    This is not uncommon and should stop when the gums become healthy after regular cleaning and flossing.
    If the bleeding continues, see a dentist.

Causes of dental and oral infections

Your oral hole gathers a wide range of microbes, infections, and organisms. Some of them have a place there, making up the typical greenery of your mouth. They’re by and large innocuous in little amounts. However, an eating routine high in sugar makes conditions in which corrosive delivering microscopic organisms can thrive. This corrosive breaks down tooth lacquer and causes dental depressions.

Microorganisms close your gum line flourish in a tacky lattice called plaque. Plaque gathers, solidifies, and moves down the length of your tooth in the event that it isn’t eliminated routinely by brushing and flossing. This can arouse your gums and cause the condition known as gum disease.

Expanded aggravation makes your gums start to pull away from your teeth. This interaction makes pockets in which discharge may in the end gather. This further developed phase of gum illness is called periodontitis.

There are numerous elements that add to gum disease and periodontitis, including:

  1. smoking
  2. poor brushing propensities
  3. frequent nibbling on sweet food sources and beverages
  4. diabetes
  5. the utilization of drugs that diminish the measure of spit in the mouth
  6. family history, or hereditary qualities
  7. certain contaminations, like HIV or AIDS
  8. hormonal changes in ladies
  9. acid reflux, or indigestion
  10. frequent spewing, because of the corrosive

Teeth Conditions

  • Cavities (caries): Bacteria evade removal by brushing and saliva and damage the enamel and deeper structures of teeth. Most cavities occur on molars and premolars.
  • Tooth decay: A general name for disease of the teeth, including cavities.
  • Periodontitis: Inflammation of the deeper structures of the teeth (periodontal ligament, jawbone, and cementum). Poor oral hygiene is usually to blame.
  • Gingivitis: Inflammation of the surface portion of the gums, around and between the crowns of the teeth. Plaque and tartar buildup can lead to gingivitis.
  • Plaque: A sticky, colorless film made of bacteria and the substances they secrete. Plaque develops quickly on teeth after eating sugary food, but can be easily brushed off.
  • Tartar: If plaque is not removed, it mixes with minerals to become tartar, a harder substance. Tartar requires professional cleaning for removal.
  • Overbite: The upper teeth protrude significantly over the lower teeth.
  • Underbite: The lower teeth protrude significantly past the upper teeth.
  • Teeth grinding (bruxism): Stress, anxiety, or sleep disorders can cause teeth grinding, usually during sleep. A dull headache or sore jaw can be symptoms.
  • Tooth sensitivity: When one or more teeth become sensitive to hot or cold, it may mean the dentin is exposed.

What Types of Services Do Pediatric Dental Specialists Offer?

Pediatric dentists offer a range of services targeting the unique dental needs of children, including:

  • Basic oral health exams for infants, children, and teens
  • Preventative care, such as cleanings and fluoride treatments
  • Oral health education
  • Tooth repair and reconstruction
  • Diagnosis of oral health conditions associated with various health conditions
  • Care and prevention of dental injuries
  • Prevention and treatment of gum disease and other oral health conditions

How to treat a toothache at home

Cold compress or ice pack

A cold compress or an ice pack can help ease dental pain, especially if a toothache is due to injury or swollen gums.

A person can try holding the ice pack or a bag of frozen peas, for example, against the outside of the cheek above the painful tooth for a few minutes at a time.

The application of a cold treatment constricts the blood vessels, slowing the flow of blood to the affected area. This helps numb the pain and reduce swelling and inflammation.

Saltwater mouthwash

Rinsing the mouth with warm salt water helps to loosen debris lodged in cavities or between teeth. It may also reduce swelling boost healing, and relieve a sore throat.

A saltwater rinse can be made by dissolving 1 teaspoon of salt in a glass of warm water and swish around in the mouth for about 30 seconds before spitting out. This process can be repeated as often as needed.


Over-the-counter medication, such as acetaminophen and ibuprofen, can provide temporary pain relief for a toothache.

Aspirin should not be given to children under 16 years old.


Garlic has been widely used for medicinal purposes throughout history. It contains a compound called allicin, which accounts for its powerful antibacterial properties.

A fresh clove of garlic should first be crushed and then mixed with a little salt, and the mixture applied to the affected tooth.

Peppermint tea

Like cloves, peppermint has numbing properties that can soothe a toothache. Menthol, which gives peppermint its minty flavor and smell, is also known to be antibacterial.

One teaspoon of dried peppermint leaves can be put in a cup of boiling water and steeped for 20 minutes. After allowing to cool, it can be swished around in the mouth then spat out or swallowed.

A slightly warm, wet tea bag can also be used and held against the tooth for several minutes until the pain lessens.

A few drops of peppermint oil on a cotton ball can also be placed against the affected tooth as a temporary remedy.

Aloe Vera

Aloe vera gel, which can be found within the succulent plants leaves, has long been used to heal burns and minor cuts. Some people now use the gel to clean and soothe gums.

Studies have shown that aloe vera has natural antibacterial qualities and can destroy germs that cause tooth decay.

The gel should be applied to the painful area of the mouth and gently massaged.

Hydrogen peroxide rinse

Rinsing with a hydrogen peroxide solution is an effective antibacterial mouthwash, especially if a toothache is caused by an infection.

Hydrogen peroxide is dangerous if swallowed so great care must be taken when rinsing.

It should be mixed in equal parts of 3 percent hydrogen peroxide and water and swished in the mouth for about 30 seconds. After spitting it out, the mouth should be rinsed several times with plain water.

A hydrogen peroxide rinse must never be swallowed, and this remedy is not recommended for children.


Cloves are a spice native to the Maluku Islands in Indonesia. They contain eugenol, a chemical compound that acts as a natural anesthetic.

Cloves also have anti-inflammatory and antibacterial properties, which can help fight tooth and gum infections.

A person can soak a small cotton ball with clove oil and apply it to the area affected by the painful tooth.

Dried whole cloves can also be used. Gently chew a whole clove to release its oil and hold in place against the affected tooth for up to 30 minutes.

Teeth Tests

Teeth X-ray films: X-ray pictures of the teeth may detect cavities below the gum line, or that are too small to identify otherwise.

Teeth examination: By viewing and gently manipulating the teeth, a dentist can detect potential teeth problems.

Teeth Treatments

  • Brushing teeth: Daily brushing of the teeth removes plaque and helps prevent cavities.
  • Flossing teeth: Using floss or an approved dental gum cleaner cleans teeth below the gum line, where brushing cannot reach.
  • Rinsing teeth: Rinsing daily with an antiseptic mouthwash kills bacteria that cause bad breath and gum disease.
  • Teeth cleaning: Professional teeth cleaning every six months may help prevent teeth and gum disease.
  • Tooth filling: Drilling out the diseased part of a tooth and packing the space with a mineral filling can prevent a cavity from destroying the tooth.
  • Root canal: The deep pulp of a tooth is drilled out, cleaned, and filled. A root canal is done when damage to the teeth has affected the deep pulp.
  • Tooth extraction: If a tooth is too damaged to repair with a filling or root canal, it may be removed. Wisdom teeth are often extracted to prevent displacement of the other teeth.
  • Braces: An artificial device or system that places teeth under tension for a long period of time. Eventually, braces can help crooked teeth become realigned.
  • Mouth guard: A plastic mouthpiece can provide protection from teeth grinding and injury during sports.
  • Dental sealants: A plastic sealant applied to the teeth can help block bacteria from hiding in crevices on teeth surfaces. Sealants can help prevent cavities.
  • Teeth whitening: Over-the-counter and professional chemical treatments can bleach teeth to a brighter white. Tooth sensitivity is the most common side effect.

Frequently Asked Questions :pencil2:

1- Is it normal to have 28 teeth?

Because many adults have had their wisdom teeth removed, it is common for many people to have only 28 teeth. Usually all adult teeth have formed and erupted into the mouth by the time a person is 21 years old (except for the wisdom teeth, which sometimes don’t have space to erupt).

2- Does everyone have 32 teeth?

Adults have 32 teeth. You should have this full set of adult teeth by your late teens. Adult teeth include incisors, canines, premolars, and molars: 8 incisors.

3- Is it normal to have 24 teeth?

In the 6 years between ages 6 and 12, the 20 permanent teeth replace the 20 baby teeth. In addition, 8 other teeth grow in behind the baby teeth. At 6 years, the 4 first permanent molars start to grow in at the back of the mouth. This means an 8-year-old child should have 24 teeth, or spaces for them.

4- How many teeth do adults have?

By the age of 12 to 14, most children have lost all their baby teeth and have their adult teeth. There are 32 adult teeth in total – 12 more than in the baby set. The last 4 of these, called wisdom teeth, usually emerge later than the others, generally between the ages of 17 and 21.

5- Is it rare to have all 4 wisdom teeth?

The number of wisdom teeth varies from person to person.
Some people get one wisdom tooth, while others have two, three, four, or none at all. While rare, sometimes a person will get more than four wisdom teeth.

6- Is it rare to have no wisdom teeth?

About 20-25% of the human population is born with 1 to 3 wisdom teeth, and 35% is born without any wisdom teeth at all.

7- At what age do humans stop growing teeth?

By about age 12 or 13, most kids have lost all of their baby teeth and have a full set of permanent teeth. There are 32 permanent teeth in all — 12 more than the original set of baby teeth.

8- Can you survive without teeth?

You can live without them. There are significant problems with living without teeth, but you can survive. Your brain, your internal organs, and a few other things are required to just survive, to be alive. Healthy teeth and a healthy mouth are essential to a good quality of life.

9-Can I live without a back tooth?

It’s common for adults to lose a back molar, often to gum disease, tooth decay, or injury. Since back molars don’t affect the overall appearance of your smile, you might be tempted to skip replacing it. That’s not the best idea. Missing a tooth, even just one, can cause severe and permanent damage to your entire mouth.

10- Is wisdom tooth painful?

You’ll feel wisdom teeth pain at the back of your mouth, behind your molars. If you look into a mirror, you may even notice that your wisdom teeth have begun to poke through your gums.


A normal adult human have 32 teeth. Adult teeth include 8 incisors, 4 canines, 8 premolars, and 12 molars. Wisdom teeth erupt at around age 18, but are mostly surgically removed to prevent displacement of other teeth.

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