Biomaterial Database

Effects of air-drying in vitro on human dentine permeability. 1984

D H Pashley, and F P Stewart, and S E Galloway

The effects of evaporation produced by air blasts of 0, 0.5, 2 or 5 min to dentine in vitro were evaluated by measuring dentine hydraulic conductance before and after each trial. When the tubules were filled with water, even prolonged evaporation had no effect on dentine permeability. Tubules filled with physiological salt solution produced a time-dependent decrease in dentine permeability. Tubules filled with 1.5 per cent albumin in water gave the largest reductions in dentine permeability. These effects were more marked in unetched as opposed to acid-etched dentine. The results suggest that part of the reduction in dentine sensitivity produced clinically by prolonged air blasts may be due to precipitation of organic and inorganic constituents of dentinal fluid at the surface.

UI	MeSH Term	Description	Entries
D003806	Dentin Permeability	The property of dentin that permits passage of light, heat, cold, and chemical substances. It does not include penetration by microorganisms.	Dentin Permeabilities,Permeabilities, Dentin,Permeability, Dentin
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000134	Acid Etching, Dental	Preparation of TOOTH surfaces and DENTAL MATERIALS with etching agents, usually phosphoric acid, to roughen the surface to increase adhesion or osteointegration.	Dental Acid Etching,Etching, Dental Acid
D000388	Air	The mixture of gases present in the earth's atmosphere consisting of oxygen, nitrogen, carbon dioxide, and small amounts of other gases.
D000418	Albumins	Water-soluble proteins found in egg whites, blood, lymph, and other tissues and fluids. They coagulate upon heating.	Albumin
D012965	Sodium Chloride	A ubiquitous sodium salt that is commonly used to season food.	Sodium Chloride, (22)Na,Sodium Chloride, (24)NaCl
D014088	Tooth Permeability	The property of TEETH to permit passage of light, heat, gases, liquids, metabolites, mineral ions and other substances. It does not include the penetration of the teeth by microorganisms.	Permeability, Tooth,Permeabilities, Tooth,Tooth Permeabilities
D014867	Water	A clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)	Hydrogen Oxide
D066298	In Vitro Techniques	Methods to study reactions or processes taking place in an artificial environment outside the living organism.	In Vitro Test,In Vitro Testing,In Vitro Tests,In Vitro as Topic,In Vitro,In Vitro Technique,In Vitro Testings,Technique, In Vitro,Techniques, In Vitro,Test, In Vitro,Testing, In Vitro,Testings, In Vitro,Tests, In Vitro,Vitro Testing, In