Virtual Human Body
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cross section of a molar
cross section of a molar
Teeth are formed of two main parts: the crown (the visible protruding part) and one or several roots (the part inserted in the maxilla).
See cross section of a molar in :
Highly mineralized tissue covering and protecting the dentin of the crown; it is the hardest tissue in the organism.
Part of the tooth covered with enamel and protruding outside the gum.
Central chamber of the crown enclosing the dental pulp and extending through the root canal.
Narrow part of the tooth surrounded by the gum separating the crown from the root.
Extension of the pulp chamber containing the dental pulp and opening at the apex of the root.
Hard mineralized tissue comparable to bone covering and protecting the dentin of the root.
Part of the tooth covered with cementum, and implanted into the dental alveolus of the maxilla; certain teeth, such as the molars, have several roots.
Bony maxillary cavity in which the root of the tooth is implanted.
Section of the maxilla bone surrounding the dental alveola; its presence depends on the presence of teeth: it forms and disappears when they do.
plexus of nerves
Grouping of blood vessels and nerves that enters the pulp through the apical foramen to nourish the tooth.
Narrow orifice located at the terminal part of the apex allowing blood vessels and nerves to pass into the tooth.
Terminal part of the dental root whose opening (apical foramen) allows blood vessels and nerves to pass through.
Fibrous connective tissue joining the cementum to the bone, thus fixing the tooth into its alveolus.
Jawbone into which the teeth are inserted.
lateral view of skull
Thick section of the mucous membrane of the mouth that is rich in blood vessels and nerves; it covers the edge of the dental alveolus and adheres to the neck.
Soft conjunctive tissue that is rich in blood vessels and nerves; the pulp gives the tooth its sensitivity and plays an essential nutritional role.
Hard mineralized tissue forming the teeth; it surrounds the dental pulp and is protected by the enamel and cementum.
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