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Chapter-03 Structure of Teeth

BOOK TITLE: Textbook of Operative Dentistry

Author
1. Garg Nisha
2. Garg Amit
ISBN
9788184487756
DOI
10.5005/jp/books/11019_3
Edition
1/e
Publishing Year
2010
Pages
14
Author Affiliations
1. Ex-Resident, Government Dental College, Patiala, Presently at, Manav Rachna Dental College, Faridabad, Haryana, India, Manav Rachna Dental College, Faridabad, Haryana, India, Government Dental College, Patiala, Sri Sukhmani Dental College and Hospital, Dera Bassi, Mohali, Punjab, India, Bhojia Dental College and Hospital, Baddi, Himachal Pradesh, India
2. Government Dental College, PGIMS, Rohtak, Haryana, India, Manav Rachna Dental College, Faridabad, Haryana, India, Sri Sukhmani Dental College and Hospital, Dera Bassi, Mohali, Punjab, India, Fortis Escorts Heart Institute, New Delhi, India, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New Hyde Park, New York, USA, Perfect Teeth Dental Clinic and Facial Aesthetics Centre, Mohali, Punjab, India, tricitybestdental.in
Chapter keywords

Abstract

An individual tooth consists of an exposed crown and a root, buried in the gingiva and alveolar bone. The crown of each tooth has a coating of enamel, which protects the underlying dentine. It is the hardest substance in the human body. Beneath the enamel is an intermediate layer of dental tissue called dentine, which forms the major component of the tooth. It is slightly softer than enamel, with a structure more like bone. It is elastic and compressible in contrast to the brittle nature of enamel. The pulp forms the central chamber of the tooth. It is made of soft tissue and contains blood vessels to supply nutrients to the tooth, and nerves to enable the tooth to sense heat and cold. The dentine of the root is covered with a thin layer of cementum, rather than enamel. Cementum is a hard bone-like substance onto which the periodontal ligament fibers attached. These periodontal ligament fibers bond the root of the tooth to the alveolar bone of the jaw. 

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