dentinal tubule


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Related to dentinal tubule: secondary dentin

dentinal tubule

One of the very small canals in the dentin. These extend from the pulp cavity of the tooth to the enamel and are occupied by odontoblastic processes and occasional nerve filaments.
See also: tubule
References in periodicals archive ?
Histologically, dentin consists of two structures: the dentinal tubules and the intertubular matrix.
After the final irrigation, the dentin surface was rough in appearance and dentinal tubule orifices were irregularly enlarged due to decalcification of the inorganic component by EDTA and dissolution of the organic matrix by NaOCl (Figure 6).
Van Winkelhoff, "Viable bacteria in root dentinal tubules of teeth with apical periodontitis," Journal of Endodontics, vol.
10) More recently, products containing calcium carbonate and arginine have been marketed with the intent of providing a barrier and preventing fluid movement inside the dentinal tubules, aiming at reducing tooth sensitivity.
This theory postulates that fluids within the dentinal tubules are disturbed either by thermal, physical or osmotic changes and these fluid changes or movements stimulate a baroreceptor which leads to neural discharge.
In vitro and in vivo analyses of the effects of desensitizing agents on dentin permeability and dentinal tubule occlusion.
The presence of a smear layer on the dentinal surface and inside the dentinal tubules was observed in all photomicrographs examined.
Iodine is known for its capability to penetrate all the way through dentinal tubules and destroy bacte- ria, though the period of its antimicrobial action is short.
After performing the treatments, we observed that the group instrumented with curettes showed a smoother surface characterized by occluded dentinal tubules and a smear layer.
This could be attributed to the reaction that occurs between fluoride and the calcium ions in the dentinal fluid, which leads to the formation of calcium fluoride crystals that are deposited in the dentinal tubule openings.