from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A pulp-filled channel in a root of a tooth.
- noun A treatment in which diseased tissue from this part of the tooth is removed and the resulting cavity is filled with an inert material.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun The hollow part of the
rootof a toothcontaining the nerveand blood vessels.
- noun dentistry A
surgical operationon a root canal, typically fillingit with gutta-percha.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun the passage in the root of a tooth through which its nerve and blood vessels enter the pulp cavity
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