what are the different types of teeth in humans and describe their arrangement
Answers
Explanation:
Humans have four types of teeth: incisors, canines, premolars, and molars, which each have a specific function. The incisors cut the food, the canines tear the food and the molars and premolars crush the food.
Answer:
Types of Teeth in Humans
Teeth have different shapes as each tooth has a particular role to perform during mastication (chewing) and eventually digestion. They are also positioned differently, so as to better serve their purpose.
There are four different types of teeth in humans. Listed below are the form and functions of types of human teeth:
Incisors
Incisors are present at the front of the mouth. These teeth have sharp edges and are adapted for cutting food into small, chewable pieces. Humans have eight incisors, four incisors in the upper jaw and four in the lower jaw.
Canines
Canines are also called cuspids. They are situated at the ‘corners’ of the dental arches. They are characteristically sharp, elongated and pointy surface. Their primary function is to grip and tear food (tough food such as meat). Humans have four canines, two in the upper jaw and two in the lower jaw.
Premolars
Premolars are also called bicuspids and are located behind the canines. These teeth have a flat surface with ridges, which is adapted for crushing and grinding food into smaller portions. Humans have eight premolars, two on each side of the jaws.
Molars
Molars are the largest and strongest teeth. It has a large and flat biting surface, which is well-adapted for grinding food. Humans have 12 molars, six in each jaw. Four of those are wisdom teeth, which is also called the third molar, which come in between the ages of 17 to 25.