Thursday 17 May 2012

Structure of the Human Tooth


There are many parts of a tooth which make its structure like Crown, Neck, Root, Enamel, Gum, pulp, dentine, Blood vessels and nerves. Teeth are fixed in the soft gums of jaw. The part of a tooth which is outside the gum is known as the crown, while the part which is inside the gum is known as the root. The neck of the tooth is where the crown meets the root. Gums protect the bottom of the tooth, including the root. Root is the sensory portion of the tooth, containing the nerve which leads to the brain. The root also holds the tooth in place in the jawbone. All the dentists are well known about the structure of teeth.

Enamel: The outer white part of the tooth is known as enamel. It is also the hardest part of the body. Enamel is the hardest and most highly mineralized substance of the body. It is one of the four major tissues which make up the tooth, along with dentin, cementum, and dental pulp. It is normally visible and must be supported by underlying dentin. 96% of enamel consists of mineral, with water and organic material comprising the rest. The normal color of enamel varies from light yellow to greyish white.

Dentin: Dentine is the next layer of our tooth. It is tough, but not as much as enamel. Dentin is the substance between enamel or cementum and the pulp chamber. It is secreted by the odontoblasts of the dental pulp. The formation of dentin is known asdentinogenesis.

Cementum: Cementum is a specialized bone like substance covering the root of a tooth. It is approximately 45% inorganic material (mainly hydroxyapatite), 33% organic material (mainlycollagen) and 22% water.

Pulp: The pulp is the innermost layer of the tooth. It has blood vessels and nerves. The dental pulp is the central part of the tooth filled with soft connective tissue.  This tissue contains blood vessels and nerves that enter the tooth from a hole at the apex of the root.      

Sometimes because of some reasons we just deteriorate the structure of our teeth like, over biting, cross biting, etc., to overcome this problem we can use the 6 month braces Dublin services for the best braces and implants.