cementum
Use Cementum in a sentence
təmBased on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source
cementum (sɪˈmɛntəm) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —n | |
| a thin bonelike tissue that covers the dentine in the root of a tooth | |
| [C19: New Latin, from Latin: | |
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
| ????? ??????, ????? |
| anterior bony portion of the roof of the mouth, extending backwards to the soft palate |
cementum ce·men·tum (sĭ-měn'təm)
n.
A bonelike substance covering the root of a tooth. Also called cement.
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
cementum
in anatomy, thin layer of bonelike material covering the roots and sometimes other parts of the teeth of mammals. Cementum is yellowish and softer than either dentine or enamel. It is made by a layer of cementum-producing cells (cementoblasts) adjacent to the dentine. The fibres of the periodontal membrane, which holds the tooth in its socket, are embedded in the cementum. Deposition of cementum continues throughout the life of the animal, especially in response to stresses. In humans, for example, as the tooth crown wears down, new cementum is deposited on the roots so that the tooth gradually rises higher in the socket and good occlusion (bite) is maintained.
Learn more about cementum with a free trial on Britannica.com.
Cite This Source
