What are Human Teeth and Its Types? Facts About Teeth

Human Teeth and Its Types, Facts About Teeth

What are Human Teeth and Its Types? Facts About Teeth

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School Online Class


What are teeth?

Teeth are the most abrasive materials in the human body. Teeth, in addition to being essential for chewing, play an important role in speech. Teeth are a rigid structure found only in all vertebrae. It is true that some invertebrates have similar “teeth”, but they differ greatly in their structure and function. Humans have different types of teeth.


What are Human teeth?

Unlike pythons and pelicans, humans cannot swallow large amounts of food. It should be cut into small pieces before swallowing the food. This work is done by hard and cold structures known as teeth.

Human teeth are of different types and perform different functions such as cutting, grinding, and breaking. The teeth are operated by the muscles of the jawbone and lubricate with the help of saliva and are produced in the salivary glands.

The vertebrae have teeth that vary in structure and number. These configurations of teeth are expressed by a special formula called the dental formula, which is expressed as fractions.

These are one of the strongest parts of the human body. It is mainly made up of protein (collagen) and minerals (calcium). In addition to digestion, teeth also play an important role in our speech. A person will have 32 teeth, including wisdom teeth. Manufacturers are the first permanent teeth to be developed, and most adults will have permanent teeth by the age of 21.

Name of Human teeth


How many types of teeth in humans?

In total, adults have 32 teeth, called permanent or secondary teeth, which include:

i. Eight incisors – four incisors in the upper jaw and four in centers in the lower jaw.

ii. Four canines – two in the upper and two in the lower jaw.

iii. Eight premolars – four premieres in the upper jaw and four premieres in the lower jaw.

iv. Twelve molars – six molars on upper jaw and six on lower jaw. This includes the four wisdom teeth.

Babies are born toothless because their primary source of food is breast milk. As babies begin to suckle, milk teeth gradually begin to appear. Milk teeth can be replaced with permanent teeth until the person is six years old.

Of the four types of teeth, the first primary teeth develop with low insulators, and most children will have at least 20 of their primary teeth by the age of 3:

i. Eight incisors – four incisors in the upper jaw and four in centers in the lower jaw.

ii. Four canines – two in the upper and two in the lower jaw.

iii. Eight molars – four molars in the upper and four molars in the lower jaw.

Also, at this stage, a person will have a combination of milk and permanent teeth. As a result, this phase is called mixed-phase.

Teeth have different shapes because each tooth plays a separate role in mastication (chewing) and ultimately digestion.

types of teeth in humans

Humans have four different types of teeth. The types and types of human teeth are listed below:


There are incisors in front of the mouth. These teeth have pointed parts and are ideal for cutting food into small, chewable pieces. A human has eight insides, four jaws, and four insulators in the lower jaw.


The canine is also called the tail. They are located at the ‘corners’ of the dental arch. They are characteristically sharp, elongated, and sharp. Their primary function is to grab food (hard food such as meat). Humans have four canons, two upper jaws, and two lower jaws.


Premolars are also called biceps. These teeth have a flat surface with ridges, suitable for crushing and grinding food into small pieces. The human has eight premiers, two on either side of the jaw.


Molars are the largest and strongest teeth. It has a large and flat cutting surface, which is ideal for grinding food. Humans have 12 molars, six per jaw. Four of them are wisdom teeth, also known as the third molar, between the ages of 17 and 25.

Wisdom teeth

The third set of wisdom teeth is also known as molars. They are the literal and final molar. These teeth appear to be between 18 and 25 years old. According to the reports and advice of dentists, most of them remove their wisdom teeth, the main reason for which is poor alignment and partial eruption, resulting in bacterial infections, pain, swelling and stiffness of the jaw.

Diphyodonts and Polyphyodonts

Humans and other mammals, including jackals, vertebrates, and reptiles, are divided into diphtheria, meaning that they have two consecutive teeth during their lifetime – milk teeth and permanent teeth.

Other vertebrates, such as toothed fish, are subdivided into polyphyodonts, meaning that their teeth are continuously replaced during their lifetime. Elephants, kangaroos, and manatees are the only polyphonic mammals.


What are some fascinating facts about teeth?

Today, we use our teeth to chew and break food, but millions of years ago, teeth were not the individual structures we are familiar with today. The earliest evidence of tooth decay came from an extinct heavily armed fish known as Romundina stellina 400 million years ago. Fish teeth resemble rough gray plates, which are sandpaper, crushing, and tearing food.

Going forward 400 million years, there are a variety of animals whose teeth are much more interesting than ours. From the squid-like beak to the giant, razor-pointed teeth of Megalodon, it reveals interesting facts about teeth.


Interesting facts about teeth are:-

i. Although not as accurate as fingerprints, teeth use can be determined by analyzing a person’s exact age and ethnicity according to size and dental characteristics.

ii. Humans produce only 2 sets of teeth in a lifetime, while sharks on the other hand produce hundreds of sets of teeth in their lifetime.

iii. Megalodon was the largest shark, with an average tooth size of 4 to 5 inches. Even larger specimens with teeth longer than 7 inches were found.

iv. Dolphin teeth have thick rings similar to the growth rings found on trees. This enables one to analyze the cross section of the tooth and identify the age of the dolphin.

v. The sharpest teeth in the animal kingdom are the extinct eel-like vertebrates that roamed the earth 500 million years ago. Their teeth were reduced to 1/12 the width of human hair. This means that they can stain large amounts of meat with minimal effort.

vi. Narwhals are whales found in the Arctic, with a long trunk projecting from their face. However, these teeth actually erode the teeth.

vii. Ivory is mainly elongated incenters.

viii. The largest camp of animals in any country belongs to the hippopotamus. However, they only use these cans to fight or repel hunters.

ix, Goosender is a large duck in Europe, parts of Asia, and North America. This animal has small, sharp edges with beaks that look like teeth. It uses these teeth for fishing.

x. The giant squid has a beak that can bite and bite its prey. Inside the beak is a tongue-like organ called the radula, which is covered with small, sharp teeth. This structure allows the squid to tear to the size of a bite.


How do you keep your teeth safe?

Healthy teeth and gums make it easier for you to eat well and enjoy good food. Some problems can affect the health of your mouth, but with good care you should keep your teeth and gums strong with age.

Tooth decay

The teeth are coated with a hard coating known as enamel. Every day, a thin film of bacteria called dental plaque forms on your teeth. The bacteria in the plaque produce acids which destroy the enamel and cause cavities. Brushing and flossing the teeth prevents tuberculosis, but once it has formed in the cavity, it needs to be filled and fixed by a dentist to prevent further damage.

Use fluoride toothpaste to prevent tooth decay. If you have a very high risk of tooth decay (for example, if you have a condition or have dry mouth due to medications you are taking), you may need more fluoride. Your dentist or dental hygienist may prescribe fluoride treatment to you during an office visit or ask you to use fluoride gel or mouthwash at home.

Gum disease

Gum disease starts when the plaque builds up and down along your gum line. Plaque is an injury to the gums and bones that clog your teeth. A similar form of gum disease can cause your gums to turn red and pale and increase the risk of bleeding. This problem, called gingivitis, can often be corrected by brushing and flossing every day.

Stages of Gum disease
Stages of Gum disease

Another serious form of gum disease is called periodontitis. If left untreated, this infection can lead to sore throat, bleeding gums, painful chewing problems, and tooth loss.

To prevent gum disease:

i. Brush your teeth with fluoride toothpaste.

ii. Floss regularly.

iii. Visit dentist regularly for a checkup and cleaning. Tell your dentist about any medical conditions or medications you have taken.

iv. Eat a balanced diet.

v. Quit smoking. Smoking increases the risk of gum disease.


How to clean teeth and gums?

There is a great way to brush and floss your teeth. every day:

i. Brush your teeth with soft bristle brush and fluoride toothpaste. Replace toothbrush every 3 to 4 months.

ii. Use small circular motions and short back-and-strokes.

iii. Brush carefully and evenly with your gum line.

iv. To help keep your mouth clean, lightly brush your tongue or use a tongue squeeze.

v. Clean teeth with dental floss, pre-threaded flossers, water flossers or similar products. This removes plaque and residual food that could not reach the toothbrush.

vi. Rinse after flossing.

People with gout or other conditions that limit movement can find it difficult to hold and use a toothbrush. Here are some useful tips:

i. Use an electric or battery-powered toothbrush.

ii. Buy a toothbrush with a large handle.

iii. Attach your hand to the toothbrush handle with a wide elastic band.

Brush or Flossing both hands show you how to make a toothbrush that can be easily held in place with a pot holder and rubber band if your gums bleed or damage your mouth. If you have trouble flossing, a floss holder can help.


False teeth (dentures) are sometimes needed to replace teeth or teeth that are badly damaged due to gum disease. Partial teeth can be used to fill in one or more missing teeth. Teeth may seem strange at first. In the beginning, your dentist will often want to see you to make sure you are fit for dentistry. Over time, the shape of your gums will change, and your teeth will need to be adjusted or replaced. Be sure to allow your dentist to handle these settings.


Be careful when brushing your teeth, because it can be difficult for you to notice hot foods or bones in your diet. When you learn how to eat with your teeth, you will find it easier to do:

i. Start with soft, non-sticky foods.

ii. Cut your food into small pieces.

iii. Chew gently with both sides of your mouth.

Keep your teeth clean and free from food that can cause sores. Avoid small crunchy foods that get stuck between the teeth and hurt the gums. Clean the brushes every day with a dental care product and soak them in water or dental cleaning liquid overnight. When you sleep, make sure they come out of your mouth to prevent inflammation of the gums.

Dry mouth

Dry mouth occurs when there is not enough saliva or saliva in your mouth. It is difficult to eat, swallow, taste, and even talk. A dry mouth increases the risk of tooth decay, fungal infections of the mouth, and cavities. Many common medications can cause this problem.

There are things you can do to help. Try drinking water or sugar-free drinks. Avoid smoking, alcohol, caffeine, soft drinks, and acidic fruit juices. Avoid spicy or salty foods. Sugar-free hard candy or slightly spicy sugar-free gum will help. Your dentist or doctor may prescribe artificial saliva to moisten your mouth.

Oral cancer

This cancer can start in any part of the mouth or throat, including the tongue. It is more likely to occur in people above the age of 40 years. A dental checkup is a good time for your dentist to look for symptoms of oral cancer. Pain is usually not the initial symptom of the disease. Treatment works well before the disease spreads. Even if you have lost all of your natural teeth, you should see your dentist regularly for an oral cancer screening.

There are several ways you can reduce the risk of oral cancer:

i. Do not use tobacco products such as cigarettes, chewing tobacco, snorting, pipes, or cigars.

ii. If you take alcohol, do it in moderation.

iii. Apply lip balm with sunscreen.

iv. Electronic cigarettes (e-cigarettes) are relatively new, and scientists are still studying their long-term health effects. However, we do know that e-cigarette vapors contain carcinogenic chemicals.

Teeth play an important role in the digestion and absorption process in humans and other vertebrates. Man eats life. Therefore, to cope with their prolonged use through chewing for years, the teeth must be really hard and firm. The white, exposed part of the tooth is covered with a layer of enamel. It is the most rigid material of the body.

The enamel is incredibly strong and translucent – Earthlight can be observed through it. Enamel is the hardest tissue in the body but has no living cells. This means that if the tooth is cut or broken, there is no way to heal itself.

The study of teeth, its types, and its upkeep is a significant part of human anatomy but it becomes simpler with the modules of Takshila learning. The mentors at Takshila learning ensure that they provide you with all the essential points related to every topic. So, let your child understand and add to what he is studying at each of the classes with Takshila learning.

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April 9, 2021

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