dentin

Definitions

  • WordNet 3.6
    • n dentin bone (calcified tissue) surrounding the pulp cavity of a tooth
    • n dentin a calcareous material harder and denser than bone that comprises the bulk of a tooth
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Century Dictionary and Cyclopedia
    • n dentin The proper substance or tissue of teeth, as ivory, for instance, as distinguised from enamel, cement, or pulp. Dentin resembles bone, but is ordinarily denser and harder. The difference is seen on microscopic section, when a multitude of very fine closeset tubules or canaliculi (the dentinal tubes) are seen following a parallel straight or wavy course, and no corpuscles or lacunæ appear, while bone-tissue shows abundant corpuscles with the canaliculi radiating in every direction. The corpusculated parts of teeth are the softer constituents as the cement or pulp, for example, whence the canaliculi alone penetrate the dentin, which is therefore comparable to the canalicular substance of bone in a state of extreme density and hardness. See cut under tooth.
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Chambers's Twentieth Century Dictionary
    • n Dentin the substance of which the tooth is formed, under the enamel.
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Etymology

Chambers's Twentieth Century Dictionary
L. dens, dentis, a tooth.

Usage

In literature:

The exposure of the delicate pulp to the air, due to the decay of the dentine, gives rise to the pain of toothache.
"A Practical Physiology" by Albert F. Blaisdell
The teeth are composed of dentine (ivory) and enamel.
"Searchlights on Health" by B. G. Jefferis and J. L. Nichols
The only advantage of yellowish teeth rests in the fact that their dentine is, as a rule, stronger.
"Valere Aude" by Louis Dechmann
Common ivory is dentine.
"Object Lessons on the Human Body" by Sarah F. Buckelew and Margaret W. Lewis
On section, the tumour is usually laminated, and is seen to consist mainly of dentine with a partial covering of enamel and cement.
"Manual of Surgery" by Alexis Thomson and Alexander Miles
The teeth are composed of dentine, or ivory, and enamel.
"The People's Common Sense Medical Adviser in Plain English" by R. V. Pierce
The material used in Calder's Dentine is made especially for it.
"The Handy Cyclopedia of Things Worth Knowing" by Joseph Triemens
The teeth are composed of dentine (ivory) and enamel.
"Searchlights on Health: Light on Dark Corners" by B.G. Jefferis
Still, it can easily be renewed, or if all the tin is removed we find the dentin hard and firm.
"Tin Foil and Its Combinations for Filling Teeth" by Henry L. Ambler
Teeth-enamel is formed from the epiblast, and dentine, cementum, pulp (except as to nerve tissue) from the mesoblast.
"Degeneracy" by Eugene S. Talbot
Finally, enamel itself and dentine are developed, and the embryonic tooth remains covered under the gums until it cuts them.
"Embryology" by Gerald R. Leighton
The crowns of the teeth are greatly reduced in height, and the dentine is thin.
"Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado" by Charles L. Douglas
Brachyodont teeth on the contrary have narrow canals running into the dentine.
"The Cambridge Natural History, Vol X., Mammalia" by Frank Evers Beddard
Complete enamel plates on the anterior and posterior surfaces are separated by tracts of dentine on the sides of each tooth.
"Evolution and Classification of the Pocket Gophers of the Subfamily Geomyinae" by Robert J. Russell
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In news:

If you're looking for tips on how to color characterize a 1-surface resin on tooth No 19 while applying dentin and enamel shades, you may as well move on to the next article.
Stimulating Post-Traumatic Dentin Formation .
Gluma Desensitizer PowerGel is a new one-step gel formula desensitizer that allows for accurate control and placement to reduce or eliminate dentinal hypersensitivity.
The use of lasers in their infancy in endodontics usually involved occlusion of dentinal tubules, thereby decreasing their permeability.
This new porcelain system is based on a single-powder buildup in which the dentine and incisal are premixed in 11 bottles to achieve all the VITA shades, including AO and BO.
These are some of the symptoms of sensitive teeth, known technically as "dentinal hypersensitivity".
Dental professionals agree, however, that the problem starts when a sensitive part of the tooth called the dentin is exposed.
Strive -The Effect of Pro-Argin Technology on Patients with Dentin Hypersensitivity.
09-10/2012 The Effect of Pro-Argin Technology on Patients with Dentin Hypersensitivity.
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