If not the hardest, teeth are one of the most solid parts of the human body. There are four different types of teeth in our oral cavity (Figure 1) including incisors, canines, premolars, and molars. Both individually and as a collective they are responsible for many different functions in the human body.
Figure 1, Oral Cavity
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The main function of teeth is mastication. When we eat food, our body should process it and make it ready for digestion, and the first step in digestion is to break down the food by teeth into smaller pieces. Incisors usually cut the food, then canines with some help from premolars tear it, and at the end premolars and mainly molars grind the food and make it ready for swallowing. Without our teeth, we would not be able to fulfill this critical function, which would as a result lead to many problems with digestion.
The second function of teeth is that they aid in pronunciation. In other words, they help us to pronounce words properly. As we grow up, we learn to pronounce with the use of our teeth and the help of our tongue. Those who lose all or some of their teeth cannot pronounce the words accurately so will have serious problem in speaking.
Figure 2, Facial Muscles
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Teeth also have a direct influence on our appearance, therefore they have an important aesthetic function. Teeth support the facial muscles (Figure 2)and other tissues around them, thus the shape and form of our face depends, to a great extend, on our teeth. Having clean and normal teeth will create a nice smile, and it can have direct influence on the personal and professional life of every individual. For example, possessing a nice and beautiful smile has direct impact on professional life of many celebrities.
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It is clear that teeth have an important role in our lives, and it is beneficial to take care of them as they are as precious as pearls (Figure 3).
Figure 3, Teeth
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