Author: misamaliraza94
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Accessory Canal
Accessory canals are smaller channels that branch off from the main root canal through the dentine to the periodontal ligament. 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.
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Cementum
The cementum is a layer of hard tissue that covers the root of the tooth. It is roughly as hard as bone but considerably softer than enamel. The connective tissues attach to the periodontal ligament, and through this bind the roots of the tooth to the gums and jaw (alveolar) bone.
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Pulp Chamber
The pulp chamber is the innermost portion of the tooth, lying beneath the dentine and extending from the crown to the tip of the root. The pulp chamber holds the pulp, which is made up of soft tissue. It contains blood vessels to supply blood and nutrients to the tooth to keep it alive, and…
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Dentine
Dentine forms the major component of each tooth, and extends almost the entire length of the tooth. It is a living tissue, softer than enamel with a structure similar to bone. In contrast to the brittle nature of enamel, dentine is elastic and compressible. It is sensitive, and is protected by enamel on the crown…
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Gingiva (Gum)
The gingiva is the pink soft tissue that we call our gums. It protects the jaw (alveolar) bone and roots of the teeth, and covers the neck of each tooth.
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Enamel
The crown of each tooth is covered with enamel, which protects the underlying dentine. Enamel is the hardest substance in the human body, even harder than bone. This is because it is the most mineralised substance in the body, made up of crystalline calcium phosphate (Hydroxylapatite). It is as hard as crystal. Enamel is the…
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Crown, Root and Neck
The tooth has two anatomical parts, the crown and the root. The crown of a tooth is the top part that is exposed and visible above the gum (gingiva). It is covered with enamel, which protects the underlying dentine. The root of a tooth descends below the gum line, into the upper or lower jawbones, anchoring the tooth in…