Author: misamaliraza94
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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. There are four types…
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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.
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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.
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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.
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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.
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Alveolar bone
The alveolar bone is the jaw bone that surrounds and supports the root of the tooth. It contains the tooth sockets within which the tooth roots are embedded.
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Apical Foramen
The apical foramen is the tiny opening at the tip of each root. This is what blood vessels and nerves from surrounding outside tissue pass through to enter the tooth.
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Accessory Canal
Accessory canals are smaller channels that branch off from the main root canal. They are usually found near the root end of the tooth (apex). They supply blood vessels and nerves to the pulp.
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Periodontal Ligament
The periodontal ligament is comprised of bundles of connective tissue fibres. One end of each bundle is attached to the cementum covering the root of the tooth. The fibres on the other end anchor the tooth root to the jaw (alveolar) bone and act as shock absorbers, allowing the tooth to withstand the forces of…
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Root Canal/ Pulp Canal
The root canal (also called the pulp canal) is the open space inside the root where the pulp extends from the pulp chamber. Blood vessels and nerves from surrounding outside tissue enter the pulp through the root canal.