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Related to Cementum: acellular cementum


A tissue closely resembling bone which covers the root of a tooth.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



the bony tissue that covers the root and neck of a tooth in mammals and humans. The cementum keeps the tooth firmly in its socket. Like other structures containing collagenous fibers, cementum is elaborated by special cells. The cells, known as cementoblasts, are buried deep in the cementum and are converted into cementocytes. Cementum contains 29.6 percent organic matter, 57 percent calcium phosphate, 8 percent calcium carbonate, 1.2 percent calcium fluoride, and 1 percent magnesium fluoride.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
3 Bartley N, Turk T, Colak C, et al.Physical properties of root cementum.Part 17.Root resorption after the application of 2.5 and 15 of buccal root torque for 4 weeks: A microcomputed tomography study.
Selection of plane of the tooth for grinding: the median plane of the tooth was selected for grinding because grinding in the labiolingual plane may result in loss of some cementum layers leading to false age determination.
The explanation of the authors was the damage of the cervical cementum resulting from avulsion (after trauma) and from intra-coronal walking bleach technique (sodium perborate and distilled water).
In short, because they simply don't have the funds to accurately age all harvested deer using the cementum annuli method.
PDLSC grafted into athymic rodents accrete cementum and structures similar to the periodontium [31].
The mean new cementum in 1-wall intrabony defects in the ABB + CM group was significantly greater than that in their counterparts in the OFD group (5.08 [+ or -] 0.68 mm vs.
Mineral trioxide aggregate (MTA) has been shown to provide bio-inductive effects with creating an environment conducive to periodontal healing and allowing new cementum growth on its surface.4-6 It has good sealing characteristics, biocompatibility, bactericidal effects and radiopacity, and it can be set up in the presence of blood.
Accuracy and precision in estimation of age of Norwegian Arctic polar bears (Ursus maritimus) using dental cementum layers from known-age individuals.--Polar Biol.
Cementoblastoma is a true neoplasm of cementum which is also designated as true cementoma.
Giannobile, "Cementum engineering with three-dimensional polymer scaffolds," Journal of Biomedical Materials Research A, vol.