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An Extensive Guide About The Types, Functions & Anatomy of Human Teeth

Dental Treatment

Our teeth are an indispensable part of our digestive system. They help break down food particles by crushing or cutting them. Most human beings have a set of 32 teeth, though some have fewer while some have more. Do you know that Enamel, or the outer layer of your teeth, is the hardest thing in the human body? So, let’s refer to this extensive guide about human teeth’ types, functions, and anatomy. Visit any reputable dental specialist in Barrackpore for regular checkups and cleaning of your teeth.

Definition of Teeth

Teeth are one of the most crucial organs in the human body, playing a vital role in digestion. They crush and cut food particles, making them easy to swallow. Though they are more similar to bones, teeth are ectodermal organs like hair, sweat glands, and skin. An adult possesses a total of 32 permanent teeth. However, some people have extra teeth, which are known as hypodontia.

On the other hand, some are born with missing teeth, known as hypomania. Most children have 20 initial teeth that erupt between 4 months and 6 years of age. Those teeth are known as baby teeth or milk teeth, which can eventually fall out and make room for permanent teeth. Below are the four major types of teeth.

The Four Major Types of Teeth

Human teeth are four types, each with its crucial purpose. The four types of permanent teeth are the following:

·       Premolars

·       Molars

·       Canines

·       Incisors


Also known as bicuspids, premolars are positioned between the molars and canines. Premolar teeth include the attributes of both molars and canines. Premolars help people crush, tear, and grind food into smaller particles.


Molars are situated at the very end of our mouth and help with 90% of chewing. Adults have a total of 12 molar teeth, 3 in each quadrant. The set of molars consists of wisdom teeth or third molars. If you were born without them or have had the teeth extracted, then you must have 8 molars altogether. Molars are ideal for crushing and grinding, which makes them responsible for chewing purposes.


Canine teeth got their name from the resemblance to a dog’s fangs. Canines have pointed ends in comparison to other teeth types. An adult has 4 canine teeth, each in one quadrant, including upper right, upper left, lower right, and lower left—Canine’s aid in having crunchy vegetables, meat, and other hard food particles. Canines are slowly known as eye teeth due to their positioning directly under your eyes.


Incisors are the most visible teeth in your mouth. An adult generally includes four incisors on the upper jaw and four on the lower jaws. The front teeth and the teeth on either side of them are examples of incisors. Each incisor includes a narrow edge that helps cut the food particles during a bite.

Functions of Human Teeth

So, these are the four examples of human teeth. Now, let’s dig into the way human teeth function. The main objective of human teeth is to help digestion by cutting, tearing, mixing, and grinding food into smaller particles. In achieving this objective, all the teeth function together. After chewing well, the tongue and oropharynx form the food into a small ball that can be easily swallowed. For those who don’t know, the oropharynx is the upper part of the throat.

Components of Teeth

Human teeth have four major layers, which are described below.


The first protective outer layer of each tooth is Enamel, which aids in protecting teeth from cavity-causing germs. Most human teeth consist of Enamel, which is the toughest object in human body parts. 


After Enamel, the next notable component of human teeth is cementum. Cementum is a substance that covers the root of human teeth. Apart from helping with periodontal problems, cementum aids in anchoring the other teeth on the jaw tightly. 


Dentin is the layer positioned under the Enamel.  It is not as strong as Enamel and can increase the possibility of cavities.

Tooth Pulp

The tooth pulp is the innermost part of human teeth. This part of human teeth includes nerves, connective tissues, and blood vessels.

Are Teeth the Same As Bones?

No, teeth are not the same as bones. Though teeth strongly resemble bones, they are distinct from the bones. How? Bones can repair and regenerate, but teeth won’t if broken. The main reason behind this is the absence of marrow in teeth. 

Anatomy of Teeth

Human teeth are made up of two main ingredients: Crown and root.


The Crown is the part of human teeth that we can see. It is the portion of teeth situated above the gums. The tooth crown is covered by a hard protective substance called Enamel. 


The root is the part of human teeth responsible for holding teeth well in the jaws. This part of our teeth can not be seen by us as the gums cover it. The root attaches our teeth to the periodontal ligaments or soft connective tissues that line the tooth sockets.

Ways To Keep Your Teeth Healthy

Maintaining good oral hygiene is the key to healthy gums and teeth. Now, what should you do to keep your gums and teeth healthy? Please read the next segment, as we will discuss the most common ways to keep teeth healthy. 

·       Visit any reputable dental clinic at least twice yearly for regular cleanings, checkups, and dental treatment in Barrackpore.

·       Brush your teeth at least twice a day for a minimum of 2 minutes.

·       Always choose a soft bristles brush and a fluoride paste.

·       Floss with a branded flosser once a day.

·       Utilise antibacterial alcohol-free mouthwash.


So, these are some common facts associated with human teeth. Teeth are a vital part of our digestive system. They aid us in biting, tearing, and grinding food before swallowing. Visit reputable dental clinics once a year to practice good oral hygiene at home. With proper maintenance and care, teeth can serve you for a lifetime. 

Contact Smile Plus Clinic whenever you need anything related to your teeth. Why choose us? From the moment you come into our clinics, you will feel the differences. Besides our expertise and wide range of dental services, our client reviews will help you know why we are the best name in town. Meeting our highly skilled and friendly staff can amaze you. Our thorough diagnosis lets you know that all your needs are taken care of. We take pride in our excellent services and unmatched attention to detail.  Call us now to learn more.